SDR SWAA096835

Service difficulty report · Relief Valve · Boeing 7377H4

Difficulty date
October 21, 2009
Submitted
November 2, 2009
Operation
Air carrier
Aircraft
N774SW
Make and model
Boeing 7377H4
Aircraft serial
27882
Aircraft time
34,709 hours, 20,372 cycles
Part
Relief Valve
Part number
7207376
Condition
Faulty
Location
Cabin Pressure
Stage of operation
TO
How discovered
O
Nature of condition
O
Precautionary procedure
D

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

What was found

DIVERSION - ON TAKEOFF AIRCRAFT WOULD NOT PRESSURIZE NORMAL. OUTFLOW VALVE CLOSED. REMOVED AND REPLACED NEGATIVE PRESSURE RELIEF VALVE PER MM.

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