# SDR AALA20160804013

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 2, 2016
- Submitted: August 5, 2016
- Operation: Air carrier
- Aircraft: N955U
- Make and model: Doug DC-9-82
- Registry model: [Doug DC-9-82](https://openairdocs.org/model/mcdonnell-douglas-dc-9-82) (OpenAirDocs)
- Aircraft serial: 49427
- Aircraft time: 78,534 hours, 42,632 cycles
- System (JASC): [4990 · APU Oil System](https://openairdocs.org/jasc/4990)
- Part: Switch
- Condition: Leaking
- Location: Apu Oil Cooler
- Component: Apu, Honeywell, GTCP8598DHF
- Component part number: GTCP8598DHF
- Stage of operation: TX
- How discovered: O
- Nature of condition: K, B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA20160804013

## Discrepancy

FLIGHT CREW REPORTED SMOKE IN THE CABIN AFTER APU START AT GATE.  MAINTENANCE FOUND APU OIL COOLER LEAKING OIL. AIRCRAFT GROUNDED.   R & R SWITCH IAW AMM 49-90-03.

---
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.