# SDR UIEA2021070901499

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 8, 2021
- Submitted: July 12, 2021
- Operation: Air carrier
- Aircraft: [N1499A](https://openairdocs.org/aircraft/N1499A), registered now
- Make and model: Boeing 767328
- Aircraft serial: 27428
- System (JASC): [4940 · APU Start/Ignition System](https://openairdocs.org/jasc/4940)
- Part: Apu
- Condition: Faulted
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2021070901499

## Discrepancy

APU RELIABILITY COLD START ACCOMPLISHED ON FLT LEG ONT-CVG SAT -48°C FL 370 START UNSUCCESSFUL ON 3 ATTEMPTS. APU FAULT MESSAGE OCCURRED DURING APU RELIABILITY COLD START(<P>ITEM# 1 - ENG SNAPSHOT INFO NOTED BY MX. SEE NEXT DISC. ITEM FOR APU COLD SOAK FAIL..</P> / <P>ITEM# 2 - PERFORMED 3 SUCCESSFUL APU STARTS ON THE GROUND. APU REMAINS OPERATIONAL, NO DEFECTS FOUND REF AMM 49-11-00. APU COLD SOAK DMI 149804 REMAINS OPEN.</P>)

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