Service difficulty report · Controller · Boeing 7572B7

Difficulty date
January 31, 2020
Submitted
February 3, 2020
Operation
Air carrier
Aircraft
N938UW
Make and model
Boeing 7572B7
Aircraft serial
27246
Aircraft time
80,074 hours, 28,278 cycles
Part
Controller
Part number
21173886
Part serial
35784
Condition
Malfunctioned
Location
Cabin Pressure
Part time
106,687 hours, 34,926 cycles
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 WAS GROUNDED: CABIN PRESS LOST AT 37,000 FT EMERGENCY DECLARED. DIVERT TO HNLCABIN CLIMBED TO 10,000 DIFF PRES 7 MAX DOWN RATE. OUTFLOW VALVE, CABIN PRESSURE SELECTOR PANEL AND AUTO 1 CABIN PRESSURE CONTROLLER REPLACED. ACCOMPLISHED WORK CARD 19L21021001.

More about the Boeing 757-2B7