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MN-FLT-OH-201
Flight Crew Operations Manual Bulletin No. GOT-1 , Dated March 15, 2018 (continued)
Currently the line number effectivity is not known therefore this FCOM bulletin
will be revised when the information becomes available. Also included in the
revision will be confirmation of the cause of the Cabin Pressurization Panel
failures and a time line for the fix. In the meantime all 737MAX airplanes will
necessitate the use of the procedures outlined in this bulletin if the Cabin
Pressurization Panel displays fail.
Operating Instructions
If the Cabin Pressurization Panel display indications flicker, become too dim to
read, or completely blank, it is important to note that the pressurization system
will function as initially set by the crew. Cabin Pressurization Panel changes do
not need to be made if a failure occurs and crew action is not needed or
recommended.
If a Cabin Pressurization Panel failure occurs the crew should follow operator
specific procedures or policies for reporting the failure.
The following action should be taken:
On the ground:
Do not takeoff.
In flight:
The Cabin Pressurization Panel failure should be momentary. Allow the Cabin
Pressurization Panel to self-recover.
If the Cabin Pressurization Panel self-recovers, continue normal operation.
If the Cabin Pressurization Panel does not self-recover, avoid flight plan
amendments requiring a change to the FLT ALT or LAND ALT on the
Cabin Pressurization Panel.
If a situation requires a change on the Cabin Pressurization Panel to
FLT ALT and the display is not visible:
Do not attempt to change the FLT ALT.
If the FLT ALT needs to be changed to a lower altitude than the
current setting due to a change in cruise altitude:
No crew action is required. Operate the airplane at the new
lower cruise altitude.
If the FLT ALT needs to be changed to a higher altitude than the
current setting due to a change in cruise altitude:
March 1, 2021
