SDR BMAC050012

Service difficulty report · Controller · Boeing 727222

Difficulty date
August 28, 2005
Submitted
September 16, 2005
Operation
Air carrier
Aircraft
N342PA
Make and model
Boeing 727222
Aircraft serial
21893
Part
Controller
Part number
7638101
Condition
Malfunctioned
Location
Cabin Pressure
Stage of operation
CL
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

UNABLE TO MAINTAIN AND CONTROL CABIN ALTITUDE IN AUTO, STBY OR MANUAL. OUTFLOW VALVE SHOWS FULLY CLOSED, HOWEVER, CABIN ALTITUDE CONTINUED TO CLIMB. REMOVED AND REPLACED PRESSURE CONTROLLER AND SAFETY VALVE.