737 MAX Flight Crew Operations Manual
Electrical -
System Description
6.20.14
MN-FLT-OH-201
All Generators Inoperative
The following list identifies the significant equipment that operates when the main
battery and the auxiliary battery are the only source of electrical power.
Airplane General
• standby compass light
• white dome lights
• emergency instrument flood lights
• flight crew oxygen
• passenger oxygen
Air Systems
• A/C pack valves
• BLEED lights
• manual pressurization control
• altitude warning horn
Anti-Ice
• Captain’s pitot probe heat
Communications
• flight interphone system
• service interphone system
• passenger address system
• VHF No. 1
Electrical
• STANDBY POWER OFF light
Engines, APU
• Captain’s inboard display unit
N1, N2, fuel flow, EGT, fuel quantity, oil pressure, oil temperature, oil quantity
• thrust reversers
• starter valves
• right igniters
• APU operation (start attempts not recommended above 25,000 feet)
Fire Protection
• APU and engine fire extinguisher bottles
• APU and engine fire detection system
• Cargo fire extinguisher bottles
• Wheel well fire dectection system
March 1, 2021