# SDR I5PA2023051988802

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 19, 2023
- Submitted: May 22, 2023
- Operation: Air carrier
- Aircraft: [N888LT](https://openairdocs.org/aircraft/N888LT), registered now
- Make and model: Boeing 757230
- Aircraft serial: 25441
- Aircraft time: 78,885 hours, 25,350 cycles
- System (JASC): [4900 · Airborne Auxiliary Power Unit (APU) System](https://openairdocs.org/jasc/4900)
- Part: Unknown
- Condition: Unknown
- Location: Unknown
- Stage of operation: DE
- How discovered: O
- Nature of condition: S
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/I5PA2023051988802

## Discrepancy

FLT NO: MGE 300 (EVENT) - APU IN-FLIGHT START FAILD 3X. PERFORMED FIM 49-11 FT 846. FOUND STARTER CIRCUIT FAULT DURING BITE. PERFORMED FIM 49-11 FT 850. FOUND NO POWER AT RELAYK10010. DURING WIRING CHECK PER WDM 24-32-41, FOUND TRIPPED APU TRU CIRCUIT BREAKER ON P32. RESET CB PER AMM 20-60-01. PERFORMED APU OPS CHECK PER AMM 49-11-00, NO DEFECTS NOTED.

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