SDR YENA2026030400256

Service difficulty report · Power Supply · Airbus A321231

Difficulty date: March 1, 2026
Submitted: March 4, 2026
Operation: Air carrier
Aircraft: N913JB
Make and model: Airbus A321231
Aircraft serial: 05909
Aircraft time: 43,835 hours, 13,772 cycles
System (JASC): 3350 · Emergency Lighting
Part: Power Supply
Condition: Faulted
Location: Zone 200
Stage of operation: IN
How discovered: V
Nature of condition: O
Precautionary procedure: K

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

What was found

DURING HEAVY MAINTENANCE: 10WL POWER SUPPLY FAULTED. REMOVED AND REPLACED THE POWER SUPPLY IAW AMM 33-51-38, OPS CHECKED IAW AMM 33-51-00-710-001-A, CIDS INTERFACE AND POWER UP TEST DONE IAW AMM 23-73-00-740-003, BOTH TESTED OK. NO FAULT. WORK ACCOMPLISHED ON WO W004054 NR N1075.

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