Service difficulty report · Outflow Valve · Boeing 757224

Difficulty date
December 19, 2022
Submitted
December 19, 2022
Operation
Air carrier
Aircraft
N58101
Make and model
Boeing 757224
Aircraft serial
27291
Aircraft time
108,057 hours, 23,136 cycles
Part
Outflow Valve
Part number
NA
Condition
Inoperative
Location
Rt Pack
Stage of operation
DE
How discovered
O
Nature of condition
O
Precautionary procedure
B

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

What was found

CABIN ALT EICAS AT FL400. RT PACK OFF AUTO 1-2 CONTROLLER INOP. OVBD EX VAL STATUS DECLARE AN EMERGENCY. OUTFLOW VALVE WAS REPLACED AND AMM 05-51-24 PROCEDURE PERFORMED OPS CK GOOD PRESSURE HOLDS PER AMM CALLOUT.