Service difficulty report · Controller · Boeing 737890

Difficulty date
November 16, 2008
Submitted
November 18, 2008
Operation
Air carrier
Aircraft
N558AS
Make and model
Boeing 737890
Aircraft serial
35177
Aircraft time
9,284 hours, 2,713 cycles
Part
Controller
Part number
2193301AA
Part serial
9696093
Condition
Malfunctioned
Location
Cabin Pressure
Part time
9,284 hours, 2,713 cycles
Stage of operation
NR
How discovered
O
Nature of condition
J
Precautionary procedure
O

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

What was found

PRESSURIZATION CONTROLLER FAILED HAD AUTO FAIL AND ALTN LIGHTS CPC NR 2 LOGGED CODE 101 AND 006. FIM 21 31 TASKS 803 AND 804 NEED TO BE ACCOMPLISHED. NO FAULTS LOGGED ON CPC NR 1. CONFIRMED AUTO FAIL FLIGHT ILLUMINATED IN AUTO POSITION. PERFORMED FIM TASK 22 31 00 TASK 810-801 FOUND DADC NR1 FAULT LOGGED ON NR 2 CABIN PRESS CONTROLLER. RESET AND CLEARED FAULT. SYSTEM BITE TEST OK. NR 2 CABIN PRESSURE C/B RESET.