Critical Check: Ensure the "STBY PWR" (Standby Power) is guarded and in the AUTO position. Fuel Management
The overhead panel is where you find the system and the flight control shutoff valves. In modern NG models, these are simplified but require a strict "guards down" policy to prevent accidental disconnection of flight surfaces in mid-air. Pressurization and Air Conditioning
Whether you are downloading a to study for your FAA checkride or to enhance your Zibo Mod or PMDG flight sim experience, focus on the "why" behind the switches. The overhead panel isn't just a wall of buttons—it’s a living map of the aircraft's vitals.
Clearly see the "Align" lights for the IRS.
Modern 737-800s feature upgraded digital displays for DC and AC voltage. When reviewing your PDF, focus on the and "Gen Off Bus" lights. The electrical panel is where you manage the APU (Auxiliary Power Unit) generator and engine-driven generators.
Understand that in normal flight, almost no amber or blue lights should be illuminated.