# SDR UIEA2021020400228

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 3, 2021
- Submitted: February 5, 2021
- Operation: Air carrier
- Aircraft: [N1511A](https://openairdocs.org/aircraft/N1511A), registered now
- Make and model: Boeing 767383
- Aircraft serial: 24318
- Aircraft time: 102,472 hours, 17,053 cycles
- System (JASC): [4900 · Airborne Auxiliary Power Unit (APU) System](https://openairdocs.org/jasc/4900)
- Part: Apu
- Condition: Inoperative
- Location: Apu Bay
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K, O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2021020400228

## Discrepancy

APU RELIABILITY COLD START ON FLT ORD-AMS SAT -46 FL 370, START UNSUCCESSFUL AFTER 3 ATTEMPTS.  SERVICED APU TO FULL LEVEL & IAW AMM 12-13-04.  START OK IAW AMM 49-11-00.

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