Service difficulty report · Control Module · Boeing 7378H4

Difficulty date
June 30, 2025
Submitted
July 1, 2025
Operation
Air carrier
Aircraft
N8584Z
Make and model
Boeing 7378H4
Aircraft serial
64800
Aircraft time
22,379 hours, 11,600 cycles
Part
Control Module
Condition
Failed
Location
Cabin Pressure
Stage of operation
CR
How discovered
O
Nature of condition
J
Precautionary procedure
A

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

AUTO FAIL LIGHT CAME ON AT FL370. RAN QRH. COULD NOT CONTROL PRESSURIZATION IN MANUAL. REMOVED AND REPLACED PER AMM 21-31-02-401-NG (CABIN PRESSURE CONTROL MODULE - REMOVAL/INSTALLATION - PERMANENT)

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