Service difficulty report · Controller · Boeing 727222

Difficulty date
March 11, 2000
Submitted
October 4, 2000
Operation
Air carrier
Aircraft
N7458U
Make and model
Boeing 727222
Aircraft serial
21912
Aircraft time
58,361 hours, 33,437 cycles
Engine
Pwa JT8D15
Part
Controller
Condition
Malfunctioned
Location
Cabin Pressure
Stage of operation
CR
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

AIRCRAFT PRESSURIZATION SYSTEM WENT TO MAXIMUM DELTA P IN AUTO AND STANDBY. AIRCRAFT MANUAL IS BEING TO CONTROL AND DIVERTED TO ORD. *S/D* AUTOMATIC AND STANDBY FUNCTIONS OF PRESSURE CONTROLLER FAILED. REPLACED PRESSURE CONTROLLER.