# SDR CA120215006

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 10, 2012
- Submitted: September 14, 2015
- Operation: General aviation
- Make and model: Bombdr BD1001A10
- Engine: Hnywl AS90711A
- System (JASC): [4920 · APU Core Engine](https://openairdocs.org/jasc/4920)
- Part: Apu
- Part number: 36150BD
- Condition: Failed
- Stage of operation: DE
- How discovered: O
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA120215006

## Discrepancy

(CAN) THE CREW TRIED TO START APU 3 TIMES ON DESCENT. 1ST: NO RPM, AND LITTLE TO NO EGT. DID NOT START.  2ND: RMP WAS LOW AND EGT WAS ERRATIC. DID NOT START.  3RD: STARTED AND EGT SPIKED TO 640 AND CREW SMELLED BURNING ODOR. CREW SHUTDOWN APU AT  THIS TIME.  POST FLIGHT INSPECTION REVEALED HEAT DAMAGE AND SOOTING TO THE APU INLET AND JUST AFT OF THE INLET SCREEN.  APU STARTER, INLET DUCT AND SCREEN TO BE REPLACED AND TAIL CONE TO BE REPAIRED.

---
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.