Service difficulty report · Control Valve · Boeing 727225A

Difficulty date
December 3, 1999
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N8873Z
Make and model
Boeing 727225A
Aircraft serial
21291
Part
Control Valve
Condition
Failed
Location
Left Pack
Component
32167431
Stage of operation
CR
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

LOST CABIN ALTITUDE WHILE CRUISING AT FLIGHT LEVEL 250. LOSS OF CABIN PRESSURE PROCEDURES ACCOMPLISHED. CHANGED LT PACK CONTROL VALVE PER MM, LEAKS CKS GOOD.