# SDR HALA2023012300011

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 20, 2023
- Submitted: January 23, 2023
- Operation: Air carrier
- Aircraft: [N381HA](https://openairdocs.org/aircraft/N381HA), registered now
- Make and model: Airbus A330-243
- Registry model: [Airbus A330-243](https://openairdocs.org/model/airbus-a330-243) (OpenAirDocs)
- Aircraft serial: 1114
- Aircraft time: 49,848 hours, 8,163 cycles
- System (JASC): [2421 · AC Generator-Alternator](https://openairdocs.org/jasc/2421)
- Part: Generator
- Condition: Abnormal
- Location: Apu
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HALA2023012300011

## Discrepancy

ETOPS - APU GENERATOR KICKED OFF AFTER GND POWER REMOVED, ATTEMPTED ONE RESET FAILED AGAIN. ACCOMPLISHED TSM 24-20-00-810-997-A, BITE TEST OF ECMU1 FAULTING MESSAGE BTC-1(11XU1) / ECMU1(1XM1). REMOVED AND REPLACED BTC-1 (11XU1) REF AMM 24-22-55-000-803 AND AMM 24-22-55-400-803, BITE TEST ECMU1 NIL HELP GIVING SAME MESSAGE. REMOVED AND REPLACED ECMU-1(1XM1) PER AMM 24-29-34-400-801. BITE TEST OK. RUN APU AND ENG #1 FOR 10 MINS, NO FAULTS NOTED.

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