# SDR HALA20240103001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 2, 2024
- Submitted: January 4, 2024
- Operation: Air carrier
- Aircraft: [N230HA](https://openairdocs.org/aircraft/N230HA), registered now
- Make and model: Airbus A321-271N
- Registry model: [Airbus A321-271N](https://openairdocs.org/model/airbus-a321-271n) (OpenAirDocs)
- Aircraft serial: 9547
- Aircraft time: 10,338 hours, 2,397 cycles
- System (JASC): [4940 · APU Start/Ignition System](https://openairdocs.org/jasc/4940)
- Part: Unknown
- Part number: UNKNOWN
- Condition: Unknown
- Location: Unknown
- Stage of operation: UK
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HALA20240103001

## Discrepancy

ETOPS - APU AUTO SHUTDOWN. PERFORMED TSM 49-00-81-810-825-A. CONFIRMED FAULT "IGNITION UNIT SHOWS OPEN CIRUIT." REMOVED AND REPLACED IGNITION UNIT, ELECTRICAL LEAD, AND IGNITER PLUG PER AMM'S 49-41-38, 49-41-41, AND 49-41-43. OPS CHECK GOOD, MESSAGE CLEARED. OK FOR SERVICE.

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