Service difficulty report · Controller · Boeing 767383

Difficulty date
September 27, 2023
Submitted
September 28, 2023
Operation
Air carrier
Aircraft
N226CY
Make and model
Boeing 767383
Aircraft serial
26544
Aircraft time
94,624 hours, 19,389 cycles
Part
Controller
Part number
211738815
Part serial
ABXT039
Condition
Malfunctioned
Location
Cabin Pressure
Part time
502,821 hours, 3,084 cycles
Stage of operation
CR
How discovered
V
Nature of condition
F, J
Precautionary procedure
A

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

What was found

EICAS CABIN ALT (AUTO 2 CONTROLLER) MAINTENANCE DEFERRED AUTO PRESSURIZATION.AFTER ONE FLIGHT, MAINTENANCE REMOVED AND INSTALLED AUTO PRESSURE CONTROLLER ASSY IAW BOEING 767 AMM 21-31-02. OPS CK GOOD AT THIS TIME PLACARD REMOVED. THIS AC REMAINS ETOPS 180 THIS CLEARS DI 45381 NO MX REVERSAL ACTION REQUIRED. 38100-28/3 .AC RETURNED TO SERVICE