Service difficulty report · Power Supply · Airbus A321211

Difficulty date
August 25, 2025
Submitted
September 2, 2025
Operation
Air carrier
Aircraft
N178US
Make and model
Airbus A321211
Aircraft serial
1519
Aircraft time
77,113 hours, 29,943 cycles
Part
Power Supply
Part number
32145410
Part serial
4376
Condition
No Test
Location
Zone 200
Part time
62,665 hours, 25,264 cycles
Stage of operation
IN
How discovered
C
Nature of condition
L
Precautionary procedure
K

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

What was found

AIRCRAFT IN BASE MAINTENANCE: EMERGENCY POWER SUPPLY UNIT 10WL DOES NOT PASS SYSTEM TEST. MAINTENANCE REPLACED EMERGENCY POWER SUPPLY UNIT 10WL (AALA202509028249) AND BATTERY (AALA202509025754) PER AMM 33-51-38. MAINTENANCE ALSO REPLACED PASSENGER / CREW DOOR 831 ESCAPE SLIDE PER AMM 25-62-44 (AALA202509024893). A SATISFACTORY OPERATIONAL CHECK WAS ACCOMPLISHED WITH NO FAULTS NOTED.

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