# SDR UIEA2019060524369

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 2, 2019
- Submitted: June 5, 2019
- Operation: Air carrier
- Aircraft: [N645GT](https://openairdocs.org/aircraft/N645GT), registered now
- Make and model: Boeing 767324
- Aircraft serial: 27393
- Aircraft time: 96,512 hours, 18,520 cycles
- System (JASC): [4920 · APU Core Engine](https://openairdocs.org/jasc/4920)
- Part: Ecu
- Part number: 211734220
- Part serial: 117A0532
- Condition: Failed
- Location: Apu
- Stage of operation: LD
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2019060524369

## Discrepancy

APU FAULT.  DURING THE APU TROUBLESHOOTING, FOUND THE ECU UNABLE TO SHOW ANY KIND OF MESSAGE AND CODE. REMOVED AND REPLACED ECU IAW AMM 49-61-05-40. REMOVED AND REPLACED APU STARTER IAW AMM 49-41-01-004-001 & 49-41-01-404-007.  APU STARTED & RAN NORMAL. REMOVED AND REPLACED THE PRESSURE SENSOR IAW AMM 49-61-04-002-001-402-006. APU OPS CHECKED GOOD. REMOVED AND REPLACED SURGE CONTROL VALVE IAW AMM 49-53-01-401. NO HELP. REMOVED AND REPLACED ECU IAW AMM 49-61-05. OPS CK NORMAL.

---
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.