SDR CALA2025090508520

Service difficulty report · Battery · Airbus A320232

Difficulty date: September 4, 2025
Submitted: September 5, 2025
Operation: Air carrier
Aircraft: N452UA
Make and model: Airbus A320232
Aircraft serial: 955
Aircraft time: 80,171 hours, 34,066 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

OPERATIONAL CHECK OF THE EMERGENCY POWER SUPPLY UNITS BY BITE-CHECK, EA2500-03960 AND EA2500-08031, REFERENCE EC2500-04561 FOR A/C 871-884, 888-899, 901-950 ) EMERGENCY LIGHTS TEST FAILED. MESSAGE EPSU BATTERY EMER L. POWER UNIT SHOWS BATTERY FAULT, REPLACED EPSU CHARGER AND BATTERY IAW 33-51-00, OPS CHECKED PASSED.

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