# SDR DALA2023042003115

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 16, 2023
- Submitted: April 20, 2023
- Operation: Air carrier
- Aircraft: [N571DZ](https://openairdocs.org/aircraft/N571DZ), registered now
- Make and model: Airbus A350-941
- Registry model: [Airbus A350-941](https://openairdocs.org/model/airbus-a350-941) (OpenAirDocs)
- Aircraft serial: 0064
- Aircraft time: 14,720 hours, 3,121 cycles
- System (JASC): [4900 · Airborne Auxiliary Power Unit (APU) System](https://openairdocs.org/jasc/4900)
- Part: Unknown
- Condition: Unknown
- Location: Unknown
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2023042003115

## Discrepancy

AIRCRAFT 3571, APU FAILED COLD SOAK START, 3 ATTEMPTS WERE MADE AT 38000 FT, EGT PEAK 015, STATIC AIR TEMP -63. CORRECTIVE ACTION: DEFERRED APU PER MEL 49-10-01A. REPLACED APU IGNITOR PLUG, AND APU FUEL CONTROL. (LP 8578605)

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