Service difficulty report · Outflow Valve · Boeing 7377H4

Difficulty date
March 26, 2016
Submitted
March 28, 2016
Operation
Air carrier
Aircraft
N773SA
Make and model
Boeing 7377H4
Aircraft serial
27881
Aircraft time
56,475 hours, 32,882 cycles
Part
Outflow Valve
Part number
40631997201AB
Part serial
9961156
Condition
Faulty
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

DIVERSION, WHILE CRUISING AT FL 390 CABIN ALTITUDE RATE OF CHANGE WENT TO 4000 FPM CLIMB. R & R AFT OUTFLOW VLV ASSEMBLY IAW AMM.

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