# SDR HALA20240116017

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 14, 2024
- Submitted: January 17, 2024
- Operation: Air carrier
- Aircraft: [N209HA](https://openairdocs.org/aircraft/N209HA), registered now
- Make and model: Airbus A321-271N
- Registry model: [Airbus A321-271N](https://openairdocs.org/model/airbus-a321-271n) (OpenAirDocs)
- Aircraft serial: 8186
- Aircraft time: 16,066 hours, 3,581 cycles
- System (JASC): [4920 · APU Core Engine](https://openairdocs.org/jasc/4920)
- 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/HALA20240116017

## Discrepancy

ETOPS - APU AUTO SHUT DOWN. REMOVED AND REPLACED APU OIL FILTERS PER AMM 49-91-41-200-002-A CONDITION SAME REMOVED + REPLACED BOTH DIFFERENTIAL PRESSURE SWITCHES 49-91-14. FILTER CHECK OK. CHECK OF APU GOOD. OKAY FOR SERVICE

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