SDR SWAA110728

Service difficulty report · Outflow Valve · Boeing 7377H4

Difficulty date
February 1, 2011
Submitted
February 10, 2011
Operation
Air carrier
Aircraft
N434WN
Make and model
Boeing 7377H4
Aircraft serial
32454
Aircraft time
28,856 hours, 16,684 cycles
Part
Outflow Valve
Part number
40631997201AB
Part serial
1219801
Condition
Faulty
Location
Cargo Bay
Stage of operation
UK
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/DECLARED EMERGENCY. AT 40K AUTO FAIL IN PRESS THEN ALTN - FAIL ALL DASHES ON PANEL CABIN ALT NEVER ABOVE 13K. REMOVED AND REPLACED OUTFLOW VALVE AND NR 2 CABIN PRESSURE CONTROLLER PER MM.

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