I am a veteran Air Force aircraft technician and pilot. Alina's maturity constantly astounds me given her age. She did not panic but sought to assess the situation and see if there were any control limitations or hazards. Superb teaching and ALSO debriefing by you William! Talking it through is an excellent way of working through this 'incident'. The loctite is a good idea also NYLOC nuts have been proven to be the best vibration proof nuts. Failing that you can 'wire lock' nuts which is pretty much infalable. Well done Alina.👍🛩
Thanks for the video! Glad you got it fixed! - There's a product you can smear over the end that stays rubbery, and can be 100% removed. I used it on industrial scales in forklifts (VERY heavy duty use) on amphenal connectors, to keep them from coming undone. It's cheap, like $5 or less, and you can smear it over both screws, and that would stop them backing out... It's called GOOP, like shoe goo, but I get the stuff in the plumbing section at Menards (Home Depot or Lowes would also carry it, and possibly Walmart too). The product is a RTV Sealant and Adhesive. Works AMAZING, but if you want it gone, use a pair of needle nose pliers, and peel up a corner, and it'll ROLL off like a strong piece of rubber...but you gotta let it setup for about 1-2 hours...skins over in minutes, and looks clear, and nice, unless the sun makes it yellow. Anyway, thanks for sharing, and hope this helps.
Thank goodness it worked out OK, I flew Quadcity Challenger ultralights for a few years and had a similar experience, it certainly expanded my pre-flight checks.
Alina you've got some guts, i can't do heights only if I'm inside a plane. You have some great adventures coming your way. Big up from Essex, England. 👍
Good to see where the screw came from. I think I'd be doing a general look at everything in between flights as this craft get older. I'm sure they vibrate quite a bit. Glad this had a good ending. 👍
As you say good thing it fell on you rather than onto the ground. If it hadn't landed on you you'd not have known it was missing until your next DI. It could have injured someone on the ground or become FOD. Neither of which are desirable. All part of the learning curve. Keep going and carry on being you.
If this is indeed a blind bolt, I’d be torque sealing it as well as loctiting it. It need to be on a preflight inspection and that torque seal is a giveaway for it working loose. Those nuts got my attention immediately for orientation.
Nice job staying cool which is so important! Blue LockTite seems like a good idea. When you check the bolt after the LockTite cures, don't turn the bolt, since that will lessen the LockTite's ability to hold. Just check to see that it's tight. I had a flap stuck full down on a touch n go in a DA-40, killed the climb performance by about 70%. A quick Look at the VSI and saw I was going to clear trees by a good margin, and then waited until 500 Ft to troubleshoot. Staying calm is huge when things don't go as planned in an aircraft. In this case it turned out to be a faulty limit switch.
It looks like the nut should be on the bottom. That way the bolt can’t fall out! Not sue about clearance issues, wire chaffing, etc. But you might want to wire those nuts onto the bolts and loctite them!
The bolt she is referring to is one of the two horizontal ones going through the grey end plate of the motor. Though you are correct, the large securing bolt would seem to be installed upside down if it is indeed a bolt and not a stud welded to the metal plate.👍
Speaking as a race car engineer here, I might suggest that you have the bolt inserted in from the top. Even If, the nut falls off, the bolt will remain in place and hold the flap motor in place. Unless there is something not visible in the video, this would be better engineering.....
Air Force standards: Bolt heads up or forward where possible. Let gravity and airstream do their job. Not sure why a cotter pin wasn't used in that application.
@@oneninerniner3427 No one with two cents worth of intelligence would think of threading the bottom mount for thee bolts and not secure the nut on top. What you say only reenforces the bolt should have been installed from the top.
I saw the video from Oshkosh where you added a bolt to your collection 😅. You reacted very appropriately to the situation. As an ultralight aircraft inspector I can only recommend that you add those bolts to your preflight inspection. Adding standard loctite to the bolt is vise, but does not guarantee an eternal solution. In a certified aircraft such a situation would lead to a solution and a recommended inspection interval. In my opinion the recommended interval for an ultralight would be preflight inspection.
@@aprilliac what I was really suggesting was two things: 1. If the bolts were inserted from above not below there is less chance of them falling out, even if the nut rattled off. 2 the traditional use of drilled bolts with castle nuts & either split pins or wire is a more certain way of securing threads when compared with nyloc nuts or loctite.
Hello. Well done Alina. One question. I’ve been fixing transport category aircraft for over 40 years and my first observation is the orientation. Can the bolt go in from the top ? Hard to see on the video. Basic maintenance would always be to fit bolts/fasteners in a fail safe mode where possible. Bolt head up or forward. great follow up video. 👍👍
@THE_BaconPirate I think the pre-flight inspection should be les cursory and more focused and every so many (number tbd) flight hours a more extensive inspection.
My first thought was..."Is it structural in some way?" In other words, am I about to see something critical to flight fall off. Alina stayed calm and did an appropriate post-flight analysis. I think I would not be able to skip that bolt in any preflight going forward......a look-see is quick and easy.
Good catch! Was there no loctite present on that bolt from factory? Someone in the comments also suggested to do loctite, and a visable lock indicator. That would be the best way forward.
So I've seen bolts and other parts that have a blue or white mark, both on the bolt and on the part it's holding down. Sort of a set of alignment marks I would guess, so you'd know if the mark on the bolt didn't line up where it should be. Would that be an easy option to add to the overall situation on every bolt on the plane?
@@williamh.scottv438yeah I mentioned that on another post, wouldn't be a bad idea to invest in one of those paint pens and mark all the dang bolts on the plane! ❤
In most aircraft it is customary to install bolts from the top with the nuts on the bottom for vertical bolts and from the front to rear for horizontal bolts. This standard procedure assures that gravity and forward acceleration will help to hold the bolts in place even if the nuts loosen. Also, most bolts employ some type of locking nut, either nylock nuts , locknuts, or castle nuts and pins for nuts that have to rotate with the bolt. Loctite will work but is not the preferred solution as it can come loose with heat.
Yes. This flap motor is not an aerospace type. It is an industrial type. If it were the former, the. The bolts and fasteners would be arranged as you mentioned.
The bolt in question is a blind bolt as it screws into a tapped hole. There is no separate nut. Therefore the blue locktite they used is an appropriate way to secure the bolt from backing out again.
@@williamh.scottv438 Лучше заменить оба болта на аналогичные по длине, но с 6 гранной головкой и просверленными отверстиями для контровочной проволоки, и законтрить по авиационному проволокой. Если вы поместите туда на резьбу синий loctite, то узел окажется не разборным.
@@erwe1054 yes safety wire would be appropriate. But in this case, it happened when she was at an airshow, so the blue medium strength thread locker was a good choice. It also will allow for disassembly.
😮Could you imagine the cost of running utilities underground for all those RV spaces for a once or twice a year event? 😮 No one would be able to afford to go to the show. Most people who have had an RV any length of time are quite familiar with and capable of "dry camping" and most even enjoy it! 😊
Thanks for the update/explanation. Maybe a dumb question, but is there any reason for the design not to have the bolts go in from the top, so even if the nut vibrates off, the bolt will still somewhat locate the flap motor? As a handy bonus, I'd rather be hit in the head by a nut than a bolt.... The scenario to be aware of would be if you'd ended up with the linkage deploying one flap and not the other, but I don't know how the linkage is designed as to if that is possible.
@@williamh.scottv438 Thanks for taking the time to reply, and glad to hear there's loctite there now. Not sure I'd have dealt with it as serenely as Alina did - kudos to you both.
Glad she made it back to the ground safely. Perhaps there is some valid reason the bolt is installed with the head down? Not the normal practice in aircraft. Ok, it's upside down. Should there not be a cotter pin or safety wire for some reason? I survived 45 years as a commercial pilot. Blue thread locker would not be my first choice.
Kudos to you Alina, nerves of steel. you just kept it cool. I see you flying in few years a F22 or F35 seriously. Mr. Scott kudos to you too. amazing job you have done
Fortunately, Alina was able to land relatively quickly to present the issue, a smart and wise decision. And fortunately, the loose bolt fell in her lap rather than the ground. And fortunately, the bolt hit her on the head without injury, which got her attention that something on the aircraft needed attention. I'm not going to preach but I do sense that God's Holy Angels truly are her Wingmen, protecting her and keeping her safe. 😎👍🏻
@@acjdf. It’s not God’s fault that the bolt fell out. Anything mechanical can, and often will fail. God had nothing to do with this….. (I do believe God was watching over her though!!)
given the machine screw is within inches of what appears to be the wing spar attach bolt and looks to be about ~4 inches long i wonder how it was never seen as it slowly protruded more and more? I would expect it to have been a thru connection with a nut to secure the device.
That’s why it is a good idea to put bolts from the top and nut on the bottom. So if nut gets unscrewed the bolt does not fall out and still holds part in place
@@williamh.scottv438Ah, makes sense. After rewatching the video on a bigger screen, I can now see that Alina was referring to horizontal, not vertical bolts.
One flap up and the other one down would be a challenge and a possibility. I find it strange that the bolt is mounted upside down so it can fall out when the nut is gone.
It wouldn't be possible with the current flap configuration. The flaps are interlinked downstream of the flap motor. Or better said, a flap motor failure can't result in asymmetrical flap deployment. The screw that fell out is horizontal and there are two of them. You might be confusing it with the cad plated bolt with a nylock nut next to the stainless steel screws in question.
I would never design something with the bolt head pointing down when it's just as easy to put it on the top. The nut should have just fallen off in this case. I would wire the bolt and feel favourable towards nylocks too.
@@williamh.scottv438 still, annual makes sense. And wearing a helmet. Good it was part of the aircraft, the relative speed of the bolt and the forehead was very low.
Hi from France ! I'm aircraft engineer, and I will give you some information: - that's exactly why safety wire exist : secure bolts (heating, grease or other chemical product will not destroy a safety wire, but for loctite...) - preventive maintenance MUST be applied on every flight things, with check scheduled based on risk and flight time. eg : all primary control surface system have to be checked in detail each 100 flight hours, and bolts, links, cables removed and installed again each 500 flight hours (There is sometime manufacturer instructions for the recommended limits, the "AMP" for Aircraft Maintenance Program. If it doesn't exist for yours, you can make your own based on a similar airplane) - Those bolts are not installed correctly. The head should be on the upper side, and the nut in the lower side. If you lose the nut, you may have more chance to keep the control, but without the bolt, no way ! Then, I've seen the inflight video, and your reaction is good, calm and return to land as quick as possible is the best you can do in this situation. Have a lot of nice flights ;)
I’m sorry a bolt that long would not fall out even if it vibrated loose , not in level flight at least, plus yiu don’t notice over seven years doing pre flight? and it just wedges in between the side of the seat , it’s not even sticking out.
@@williamh.scottv438 Well, ok then. I think that's overkill for an ultralight. The cadmium plating is toxic and leaches easily so don't handle them more than you need to. cadmium plating is banned in the rest of the world, only the US allows it.
According to the ac if a bolt can be put in so gravity will hold it there if the nut comes off same on the structural bolts they will go in from the front and the nut on the back or bottom side.
It didn’t take seven years to come out. It came out because it wasn’t caught on preflight which is what the preflight is for. Don’t take this casually, you were really lucky this time..
That bolt was installed incorrectly….AC 43-13. Should have been installed if the nut came loose the bolt would have stayed in…. (The bolt installs head up) You need to have someone that knows what they are doing AP IA look over your whole plane before flying it again… FYI IA 30+ years
You are referring to the wrong bolt. The screw (1 of 2) that came out is horizontal and has blind tapped threads. It's orientation is determined by flap motor design.
Who did ever mount that bolt ??? It was fitted upside down, ( and apparently again mounted the wrong way 😳🙈) very, very bad practice in Aviation and totally unprofessional…..It should have been mounted the other way round so that it could never fall out when the nut went….
There aren't really any "not important" bolts on an aircraft, and a loose one should have been caught in seven years. The next one you may not get another chance.
That usage comes from the commercial side of things. You may have heard of a “Crew Alerting System” Or CAS. It’s the message system that alerts the crew if there is a problem. A flap failure produces the caution message “flap fail”.
@@williamh.scottv438 Yes, "fail" is the shortened form for indicating a failure but Ellie, along with numerous people for about the last few years fail to use the correct word for the noun. It's ironic because she was an English major.
Why people who flu open cockpit, especially ultralites don't wesr damn helmets! Same goes for motorcycle riders. Why they don't is because they wanna look cool. This perception I believe has been placed also in the ultralite community and needs to be squashed! You crash or, in this case, something flys in your face could have gone bad! I am glad she's safe, but she needs to be wearing a helmet.
![BOWKYLION - วิงวอน (ex-change) [Official MV]](http://i.ytimg.com/vi/cLdnZWDaO-w/mqdefault.jpg)
Thanks for the video. Alina really speaks intelligently and knows your aircraft very well.
Thank you for an excellent video. Happy to see that you have a good crew that was able to pen-point the origin of the bolt. Carry On Madame.
Thanks for this update Alina. Greetings from the Netherlands
I am a veteran Air Force aircraft technician and pilot. Alina's maturity constantly astounds me given her age. She did not panic but sought to assess the situation and see if there were any control limitations or hazards. Superb teaching and ALSO debriefing by you William! Talking it through is an excellent way of working through this 'incident'. The loctite is a good idea also NYLOC nuts have been proven to be the best vibration proof nuts. Failing that you can 'wire lock' nuts which is pretty much infalable. Well done Alina.👍🛩
I’ve never flown anything. She is amazing. What a cool young lady
How did they miss a loose bolt?
Great process... thanks for letting us sit in.
Thanks for the video! Glad you got it fixed! - There's a product you can smear over the end that stays rubbery, and can be 100% removed. I used it on industrial scales in forklifts (VERY heavy duty use) on amphenal connectors, to keep them from coming undone. It's cheap, like $5 or less, and you can smear it over both screws, and that would stop them backing out... It's called GOOP, like shoe goo, but I get the stuff in the plumbing section at Menards (Home Depot or Lowes would also carry it, and possibly Walmart too). The product is a RTV Sealant and Adhesive. Works AMAZING, but if you want it gone, use a pair of needle nose pliers, and peel up a corner, and it'll ROLL off like a strong piece of rubber...but you gotta let it setup for about 1-2 hours...skins over in minutes, and looks clear, and nice, unless the sun makes it yellow.
Anyway, thanks for sharing, and hope this helps.
Thank You William and Alina.
Saw the initial video. Didn't expect to watch this one in its entirety. Good info, and good stuff all around; engaging too. Thanks.
Thank goodness it worked out OK, I flew Quadcity Challenger ultralights for a few years and had a similar experience, it certainly expanded my pre-flight checks.
Alina you've got some guts, i can't do heights only if I'm inside a plane. You have some great adventures coming your way. Big up from Essex, England. 👍
Good to see where the screw came from. I think I'd be doing a general look at everything in between flights as this craft get older. I'm sure they vibrate quite a bit. Glad this had a good ending. 👍
As you say good thing it fell on you rather than onto the ground. If it hadn't landed on you you'd not have known it was missing until your next DI. It could have injured someone on the ground or become FOD. Neither of which are desirable. All part of the learning curve. Keep going and carry on being you.
New bolt added to the preflight check. :)
Alina is so well spoken. Love watching her grow as a pilot. The girl's got a bright future.
If this is indeed a blind bolt, I’d be torque sealing it as well as loctiting it. It need to be on a preflight inspection and that torque seal is a giveaway for it working loose. Those nuts got my attention immediately for orientation.
Nice job staying cool which is so important! Blue LockTite seems like a good idea. When you check the bolt after the LockTite cures, don't turn the bolt, since that will lessen the LockTite's ability to hold. Just check to see that it's tight.
I had a flap stuck full down on a touch n go in a DA-40, killed the climb performance by about 70%. A quick Look at the VSI and saw I was going to clear trees by a good margin, and then waited until 500 Ft to troubleshoot. Staying calm is huge when things don't go as planned in an aircraft. In this case it turned out to be a faulty limit switch.
Love her logic, very necessary in a pilot.
"I wondered if it was from the space station" - yup logic at its finest
You handled it well young lady…
It looks like the nut should be on the bottom. That way the bolt can’t fall out! Not sue about clearance issues, wire chaffing, etc. But you might want to wire those nuts onto the bolts and loctite them!
The bolt she is referring to is one of the two horizontal ones going through the grey end plate of the motor. Though you are correct, the large securing bolt would seem to be installed upside down if it is indeed a bolt and not a stud welded to the metal plate.👍
Speaking as a race car engineer here, I might suggest that you have the bolt inserted in from the top. Even If, the nut falls off, the bolt will remain in place and hold the flap motor in place. Unless there is something not visible in the video, this would be better engineering.....
You are correct. It would be better to do it as you describe.
Air Force standards: Bolt heads up or forward where possible. Let gravity and airstream do their job. Not sure why a cotter pin wasn't used in that application.
Totally agree. And safety wiring or other mechanical retention system on the nut.
The bottom plate for the motor is drilled and tapped for the screws.
@@oneninerniner3427 No one with two cents worth of intelligence would think of threading the bottom mount for thee bolts and not secure the nut on top. What you say only reenforces the bolt should have been installed from the top.
Tail feathers, thats beautiful
I saw the video from Oshkosh where you added a bolt to your collection 😅. You reacted very appropriately to the situation. As an ultralight aircraft inspector I can only recommend that you add those bolts to your preflight inspection. Adding standard loctite to the bolt is vise, but does not guarantee an eternal solution. In a certified aircraft such a situation would lead to a solution and a recommended inspection interval. In my opinion the recommended interval for an ultralight would be preflight inspection.
Thanks for the advice.
How about putting the bolt in from the top & wiring the nuts in place?
@@pcka12it looks like a countersunk screw, so it wouldn't have anything to wire... Which is not comforting but here we are.
@@aprilliac what I was really suggesting was two things:
1. If the bolts were inserted from above not below there is less chance of them falling out, even if the nut rattled off.
2 the traditional use of drilled bolts with castle nuts & either split pins or wire is a more certain way of securing threads when compared with nyloc nuts or loctite.
That would work but would require a different flap motor
Good as always, cannot add anything to the already stellar comment section
Hello. Well done Alina. One question. I’ve been fixing transport category aircraft for over 40 years and my first observation is the orientation. Can the bolt go in from the top ? Hard to see on the video. Basic maintenance would always be to fit bolts/fasteners in a fail safe mode where possible. Bolt head up or forward. great follow up video. 👍👍
Thanks for your comment. It's a horizontal bolt (screw). Head forward. To mount it from the top it would require a redesign of the flap motor.
👍👍 mighty, I couldn’t make it out. Happy aviating guys 👍
Какая захватывающая история про блестящий болт😂
Lucky young lady! Makes a periodic general inspection worth doing and re-torque everything with Loctite.
Yeah, I'm thinking that there ought to be a once a month walk around with a torque wrench 😮
Once every 60 days?
@THE_BaconPirate I think the pre-flight inspection should be les cursory and more focused and every so many (number tbd) flight hours a more extensive inspection.
Attention should turn to maintenance and how the other bolts are doing.
My first thought was..."Is it structural in some way?" In other words, am I about to see something critical to flight fall off. Alina stayed calm and did an appropriate post-flight analysis. I think I would not be able to skip that bolt in any preflight going forward......a look-see is quick and easy.
Agreed
Good catch!
Was there no loctite present on that bolt from factory?
Someone in the comments also suggested to do loctite, and a visable lock indicator.
That would be the best way forward.
So I've seen bolts and other parts that have a blue or white mark, both on the bolt and on the part it's holding down. Sort of a set of alignment marks I would guess, so you'd know if the mark on the bolt didn't line up where it should be.
Would that be an easy option to add to the overall situation on every bolt on the plane?
Hi Alina, you need to matchmark the bolts/screws so you can see if they are starting to loosen. Safe flights lass.
That's a good suggestion. Thanks
@@williamh.scottv438yeah I mentioned that on another post, wouldn't be a bad idea to invest in one of those paint pens and mark all the dang bolts on the plane! ❤
@ not a bad idea
Железные нервы, молодец, не запаниковала
Pontal de Maceió- Fortim-CEARÁ BRASIL 🇧🇷🇧🇷🇧🇷🇧🇷🇧🇷🇧🇷
Alina, Female Chuck Yeager, love her accent describing logic flow thru an inflight problem. Sign her up for the next moon landing.
*_OOPS._*
{Glad you were okay.}
In most aircraft it is customary to install bolts from the top with the nuts on the bottom for vertical bolts and from the front to rear for horizontal bolts. This standard procedure assures that gravity and forward acceleration will help to hold the bolts in place even if the nuts loosen. Also, most bolts employ some type of locking nut, either nylock nuts , locknuts, or castle nuts and pins for nuts that have to rotate with the bolt. Loctite will work but is not the preferred solution as it can come loose with heat.
Yes. This flap motor is not an aerospace type. It is an industrial type. If it were the former, the. The bolts and fasteners would be arranged as you mentioned.
The bolt in question is a blind bolt as it screws into a tapped hole. There is no separate nut. Therefore the blue locktite they used is an appropriate way to secure the bolt from backing out again.
Thank you for explaining that.
@@williamh.scottv438 Лучше заменить оба болта на аналогичные по длине, но с 6 гранной головкой и просверленными отверстиями для контровочной проволоки, и законтрить по авиационному проволокой. Если вы поместите туда на резьбу синий loctite, то узел окажется не разборным.
@@erwe1054 yes safety wire would be appropriate. But in this case, it happened when she was at an airshow, so the blue medium strength thread locker was a good choice. It also will allow for disassembly.
Greetings, have a nice Monday
I was astonished how many people are living rough in RV's there
😮Could you imagine the cost of running utilities underground for all those RV spaces for a once or twice a year event? 😮 No one would be able to afford to go to the show. Most people who have had an RV any length of time are quite familiar with and capable of "dry camping" and most even enjoy it! 😊
I remember that and thinking, get in the ground ASAP!
Very cool, love it!
They're more robust in some areas than others. Another gootuber had a fuel line break. Surprised they go so far without more forced landings.
Thanks for the update/explanation. Maybe a dumb question, but is there any reason for the design not to have the bolts go in from the top, so even if the nut vibrates off, the bolt will still somewhat locate the flap motor? As a handy bonus, I'd rather be hit in the head by a nut than a bolt....
The scenario to be aware of would be if you'd ended up with the linkage deploying one flap and not the other, but I don't know how the linkage is designed as to if that is possible.
Asymmetrical flap deployment wouldn't occur here. The flaps are interconnected down stream of the motor.
@@williamh.scottv438 Thanks for taking the time to reply, and glad to hear there's loctite there now. Not sure I'd have dealt with it as serenely as Alina did - kudos to you both.
Yup, always try to design fail-safe...
Glad she made it back to the ground safely. Perhaps there is some valid reason the bolt is installed with the head down? Not the normal practice in aircraft. Ok, it's upside down. Should there not be a cotter pin or safety wire for some reason? I survived 45 years as a commercial pilot. Blue thread locker would not be my first choice.
The screw that fell out was mounted horizontally
@@williamh.scottv438 Good information. Thanks. Still begs the question as to why it did not have a safety. Thread locker is not a safety.
Check fasteners all the time. If it took seven years for the bolt to come loose that is a long time without checking. The paranoid survive!
Kudos to you Alina, nerves of steel. you just kept it cool. I see you flying in few years a F22 or F35 seriously. Mr. Scott kudos to you too. amazing job you have done
Having bolts fall out of my airplane would make me wonder, briefly, "wait, am I flying the ultralight or the Boeing today?"
😂Yeah that would have made me immediately look for a landing area! (and a clean pair of undershorts!)
Алина ты смелая девочка я бы побоялся сесть и полететь один если только с тобой ито закрытыми глазами 😊❤
awesome!
If this were my daughter she'd be dressed like a motorcycle rider with a helmet, boots, gloves, a leather jacket, and pants.
Jsi super holka🙃....
In truth, I'll bet you never do another pre flight inspection without at least looking at that bolt.
Probably
LOL yeah, shtuff falling off in your lap at 500 feet would tend to have that affect lol
Fortunately, Alina was able to land relatively quickly to present the issue, a smart and wise decision. And fortunately, the loose bolt fell in her lap rather than the ground. And fortunately, the bolt hit her on the head without injury, which got her attention that something on the aircraft needed attention. I'm not going to preach but I do sense that God's Holy Angels truly are her Wingmen, protecting her and keeping her safe. 😎👍🏻
It would be impossible to get this far without God's grace.
If God was doing a proper job he wouldn't let the bolt fall out in the first place.
@@acjdf. It’s not God’s fault that the bolt fell out. Anything mechanical can, and often will fail. God had nothing to do with this….. (I do believe God was watching over her though!!)
That's not my understanding of how God operates.
Oh ffs leave your made up God out of it
good flying
given the machine screw is within inches of what appears to be the wing spar attach bolt and looks to be about ~4 inches long i wonder how it was never seen as it slowly protruded more and more? I would expect it to have been a thru connection with a nut to secure the device.
It has about 1/4 inch engagement to internally (blind) threads.
@@williamh.scottv438ouch... Blind internal threads... 😮...
Hello, Alina Aerolite. Shhhooww🇧🇷🇧🇷🇧🇷🇧🇷🇧🇷
That must have been a little scary being a thousand feet in the air and having a bolt hit you in the face!
Lesson Learned!!! Vibration!! Keep that 15- in 1 tool in your sack!
"not an important bolt..."
Not as important as others
😂 "But did you die?"
Also... As I've heard many times in my life.... Any landing you can walk away from, is a good landing! 😊
That’s why it is a good idea to put bolts from the top and nut on the bottom. So if nut gets unscrewed the bolt does not fall out and still holds part in place
It's a horizontal screw. The flap motor would need to be redesigned.
@@williamh.scottv438Ah, makes sense. After rewatching the video on a bigger screen, I can now see that Alina was referring to horizontal, not vertical bolts.
😮😁🥺🙂👍😇
OMG😮
how much for this plane?
About 26k
@@williamh.scottv438
Fell from Boeing😂
Hey from nor cal ….
Is there any preventive maintenance on this type of plane ?
Yes
Lucky bolt,I wouldn't mind falling into her lap but you'd have a hard time getting me out. What's with all those campers?
Это не ответственное место, но в комментариях было много переживаний.
Lots of know it all's too!
Medium thread locker was appropriate.
One flap up and the other one down would be a challenge and a possibility. I find it strange that the bolt is mounted upside down so it can fall out when the nut is gone.
It wouldn't be possible with the current flap configuration. The flaps are interlinked downstream of the flap motor. Or better said, a flap motor failure can't result in asymmetrical flap deployment. The screw that fell out is horizontal and there are two of them. You might be confusing it with the cad plated bolt with a nylock nut next to the stainless steel screws in question.
Loctite. The Engineers friend 🙂
You better check your whole aircraft.
Now why pray tell would you want to do that?
Why aren't those types of fasteners, safety wired?
Yeah that's a factory thing. The OG engineer should have never designed that with internal blind threads. At least now they know what to watch for.
I would never design something with the bolt head pointing down when it's just as easy to put it on the top. The nut should have just fallen off in this case. I would wire the bolt and feel favourable towards nylocks too.
The svrew in question is horizontal
Did she say nobody checked the bolt for eight years straight?
7
@@williamh.scottv438 still, annual makes sense. And wearing a helmet. Good it was part of the aircraft, the relative speed of the bolt and the forehead was very low.
Hi from France !
I'm aircraft engineer, and I will give you some information:
- that's exactly why safety wire exist : secure bolts (heating, grease or other chemical product will not destroy a safety wire, but for loctite...)
- preventive maintenance MUST be applied on every flight things, with check scheduled based on risk and flight time. eg : all primary control surface system have to be checked in detail each 100 flight hours, and bolts, links, cables removed and installed again each 500 flight hours (There is sometime manufacturer instructions for the recommended limits, the "AMP" for Aircraft Maintenance Program. If it doesn't exist for yours, you can make your own based on a similar airplane)
- Those bolts are not installed correctly. The head should be on the upper side, and the nut in the lower side. If you lose the nut, you may have more chance to keep the control, but without the bolt, no way !
Then, I've seen the inflight video, and your reaction is good, calm and return to land as quick as possible is the best you can do in this situation.
Have a lot of nice flights ;)
I’m sorry a bolt that long would not fall out even if it vibrated loose , not in level flight at least, plus yiu don’t notice over seven years doing pre flight? and it just wedges in between the side of the seat , it’s not even sticking out.
What's your theory then? Sabotage?
@williamh.scottv438 lol 👍
All aircraft nuts
Those bolts are unlikely to be cadmium plated. They're probably yellow zinc plated.
They are labeled "cad plated" and I thought cadmeant cadmium.
@@williamh.scottv438 Well, ok then. I think that's overkill for an ultralight. The cadmium plating is toxic and leaches easily so don't handle them more than you need to. cadmium plating is banned in the rest of the world, only the US allows it.
@@mikeb.7068 yikes!
It was installed wrong. The nuts are always on the bottom. If the nut comes off ,the bolt stays in.
how would the bolt come out if it had a nyloc nut on it ....if it didnt why not
This screw had a blind fastener.
Alina are those dirt bike pants? LOL
Yes. We were coming back from a ride.
According to the ac if a bolt can be put in so gravity will hold it there if the nut comes off same on the structural bolts they will go in from the front and the nut on the back or bottom side.
It didn’t take seven years to come out. It came out because it wasn’t caught on preflight which is what the preflight is for. Don’t take this casually, you were really lucky this time..
It wasn’t caught on preflight because it’s not on the preflight checklist. It’s now on a first flight of the day checklist.
That bolt was installed incorrectly….AC 43-13. Should have been installed if the nut came loose the bolt would have stayed in…. (The bolt installs head up) You need to have someone that knows what they are doing AP IA look over your whole plane before flying it again… FYI IA 30+ years
You are referring to the wrong bolt. The screw (1 of 2) that came out is horizontal and has blind tapped threads. It's orientation is determined by flap motor design.
Who did ever mount that bolt ??? It was fitted upside down, ( and apparently again mounted the wrong way 😳🙈) very, very bad practice in Aviation and totally unprofessional…..It should have been mounted the other way round so that it could never fall out when the nut went….
These screws are horizontal. You are thinking of the wrong screw.
You are not Russian aeroplane ex,aeroflot
Yep, too many keyboard karens!
Everything in front of a pusher prop should be triple checked. Don't want anything going backwards into the prop.
Good your ok a reason to wear a helmet with a visor
Even though it has been 7 years. Inspection, inspection, inspection. I would take those bolts out and drill a hole to safety those bolts with wire.
This is what Anual is for ✈️😎
контрить надо
I find many aspects of this disturbing as a professional pilot and the ignorant comments even more so.
There aren't really any "not important" bolts on an aircraft, and a loose one should have been caught in seven years. The next one you may not get another chance.
Failure. The noun.
That usage comes from the commercial side of things. You may have heard of a “Crew Alerting System” Or CAS. It’s the message system that alerts the crew if there is a problem. A flap failure produces the caution message “flap fail”.
@@williamh.scottv438 Yes, "fail" is the shortened form for indicating a failure but Ellie, along with numerous people for about the last few years fail to use the correct word for the noun. It's ironic because she was an English major.
Which Ellie are you referring to?
@@williamh.scottv438 Eliana Sheriff (Ellie In Space).
This isn't Ellie Sheriff.
Why people who flu open cockpit, especially ultralites don't wesr damn helmets! Same goes for motorcycle riders. Why they don't is because they wanna look cool. This perception I believe has been placed also in the ultralite community and needs to be squashed! You crash or, in this case, something flys in your face could have gone bad! I am glad she's safe, but she needs to be wearing a helmet.
Interesting theroy
thats why you should wear an helmet
I find it weird that in 7 years of flying nobody has done a complete nut & bolt check on it.
I find it weird why none are wire tied. Stupid
Should be a huge red flag to check every fastener on that plane.
Lack of maintanance can kill you.
I can see your flaps in the thumbnail 😂
I’m surprised that in an open cockpit aircraft that she doesn’t wear a proper helmet and visor. Asking for trouble without it.