# SDR UIEA2020050600948

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 5, 2020
- Submitted: May 8, 2020
- Operation: Air carrier
- Aircraft: [N1181A](https://openairdocs.org/aircraft/N1181A), registered now
- Make and model: Boeing 767-3Y0
- Registry model: [Boeing 767-3Y0](https://openairdocs.org/model/boeing-767-3y0) (OpenAirDocs)
- Aircraft serial: 26206
- Aircraft time: 87,705 hours, 21,944 cycles
- System (JASC): [4900 · Airborne Auxiliary Power Unit (APU) System](https://openairdocs.org/jasc/4900)
- Part: Unknown
- Condition: Malfunctioned
- Location: Apu
- Stage of operation: TX
- How discovered: C
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2020050600948

## Discrepancy

APU FAILED AND SHUTDOWN BEFORE ENG START(<P>PLACED ON MDDR 127985 PER MEL 49-11-01A, CAT 'C'.</P><P>08MAY20, BWI LP 1150050, ITEM M5: PERF APU BITE IAW FIM 49-11 FT 958. FOUND NO FAULTS. APU OPERATING NORMAL AND STARTING PARAMETERS SHOW NO SIGNS OF A BAD START. THIS CLEARS DMI 127985. DP @ 16:05Z.</P>)

---
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.