# SDR UIEA2020080401705

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 4, 2020
- Submitted: August 4, 2020
- Operation: Air carrier
- Aircraft: [N1487A](https://openairdocs.org/aircraft/N1487A), registered now
- Make and model: Boeing 767-31K
- Registry model: [Boeing 767-31K](https://openairdocs.org/model/boeing-767-31k) (OpenAirDocs)
- Aircraft serial: 28865
- Aircraft time: 88,005 hours, 18,117 cycles
- System (JASC): [4940 · APU Start/Ignition System](https://openairdocs.org/jasc/4940)
- Part: Apu
- Condition: Faulted
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2020080401705

## Discrepancy

APU FAULT AFTER 3 START ATTEMPTS ON THE GROUND. FOUND BPCU CB IN THE OPEN POSITION. RESET CB, THEN PERFORMED BPCU BITE. NO FAULTS. STARTED APU IN THE FIRST ATTEMPT. NO FAULTS NOTED. REF AMM 24-22-00.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.