United Airlines (UA 1564) 777-200 powerful departure from Houston to San Francisco

United Airlines (UA1564) departing rainy Houston Bush Intercontinental bound to San Francisco International. Aircraft departed 2 hours late. First, the crew arrived late from an earlier flight; Then, the plane taxied to active runway but it was instructed by United operations to return to the gate because of a bag containing lithium batteries. It was an awkward situation but regardless, the sounds of this 28 yr beauty worth it 😎✈️. Enjoy!
Flight: UA1564
Aircraft: 777-200ER
Registration: N778UA (28 yr old)
Origin: Houston Bush Intercontinetal (IAH)
Destination: San Francisco International (SFO)
Duration: 3h 15min
Seat: 3L