# SDR UIEA2017040700526

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 7, 2017
- Submitted: April 7, 2017
- Operation: Air carrier
- Aircraft: [N649GT](https://openairdocs.org/aircraft/N649GT), registered now
- Make and model: Boeing 767375
- Aircraft serial: 25864
- Aircraft time: 84,055 hours, 21,874 cycles
- System (JASC): [4940 · APU Start/Ignition System](https://openairdocs.org/jasc/4940)
- Part: Igniter
- Part number: 3057661
- Part serial: NSN
- Condition: Failed
- Location: Apu
- 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/UIEA2017040700526

## Discrepancy

APU COLD SOAK START ATTEMPT UNSUCCESSFUL TWICE.  ATTEMPTED APU COLD SOAK START AFTER TWO HOURS AT FL 410.  APU SHUT DOWN TWICE AFTER REACHING APPROXIMATELY 750 EGT.  FAULT LIGHT ILLUMINATED.  REMOVED AND REPLACED THE APU IGNITER PLUG,  OPS CHECKED OK IAW AMM 49-41-02.

---
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.