Service difficulty report · Control Valve · Boeing 727222

Difficulty date
January 29, 2001
Submitted
February 21, 2001
Operation
Air carrier
Aircraft
N7458U
Make and model
Boeing 727222
Aircraft serial
21912
Aircraft time
60,611 hours, 34,855 cycles
Engine
Pwa JT8D15
Part
Control Valve
Condition
Inoperative
Location
Cabin Pressure
Component
Vlv Cabin Air Fl · Airesrch · 39608831MOD
Stage of operation
CL
How discovered
O
Nature of condition
O
Precautionary procedure
A

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

What was found

AIRCRAFT RETURNED TO ORD DUE TO A CABIN PRESSURE PROBLEM. *S/D* THE AIRFLOW CONTROL VALVES WERE INOPERATIVE. REPLACED LEFT AND RIGHT VALVES.