PMDG 777 Tutorial From Cold & Dark + The Electrical Powerup + FMC Preflight [1080 HD]

In this tutorial i discuss in detail the following items:
1. How to put the aircraft panel state in cold and dark
2. How to powerup the electrical system using the external power sources
3. How to preflight the FMC with the assistance of the Simbrief.

[@PhilippeBorfiga]

Great informations, thank you :)