737 MAX Flight Crew Operations Manual
Normal Procedures -
Amplified Procedures
MN-FLT-OH-201
NP.21.12
Preflight Procedures - Captain
Objective: to check and configure aircraft systems.
Do the following procedures when any of the following criteria is met:
• First flight;
• After crew change or maintenance action;
• If the aircraft has been unattended for any period of time;
• After Secure Checklist reading.
The Captain normally does this procedure. The First Officer may perform
this procedure if needed.
Lights ...........................................................................................Test
Master LIGHTS TEST and DIM switch - TEST
The fire warning lights are not checked during this test. Use
individual test switches or push to test features to check lights
which do not illuminated during the light test. Use scanflow to
verify that all other lights are flashing or illuminated. Verify
that all system annunciator panel lights are illuminated.
Master LIGHTS TEST and DIM switch - As Needed
Electronic Flight Bag (EFB) .........................................................ON
Verify if the EFB battery is minimum 50% and charging.
Verify internet connectivity (3G/4G or WiFi).
Check for applications updates (Aviator, OPT, Flight Deck).
Oxygen ............................................................................Test and Set
Note the crew oxygen pressure. Verify if it is sufficient for
dispatch.
Oxygen mask stowed and door closed
TEST / RESET switch push and hold
Verify that the yellow cross shows momentarily in the flow
indicator.
Regulator selector (as installed) Rotate to EMER
Mask/Boom switch - Mask
FLT INT switch - Push
March 1, 2021