SDR AALA202505066813

Service difficulty report · Battery · Airbus A321231

Difficulty date: April 29, 2025
Submitted: May 6, 2025
Operation: Air carrier
Aircraft: N925UY
Make and model: Airbus A321231
Aircraft serial: 6613
Aircraft time: 31,770 hours, 13,028 cycles
System (JASC): 3350 · Emergency Lighting
Part: Battery
Part number: AD321431
Condition: No Test
Location: Zone 200
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: LEFT HAND SEAT ROWS 14,15,17,18,21 AND 22 EMERGENCY LIGHTS ARE INOPERATIVE. REPLACED THE BATTERY FOR EMERGENCY POWER SUPPLY UNIT 11WL AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK OF THE EMERGENCY LIGHTING SYSTEM PER AMM 33-51-38.

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