# SDR SIMA960642

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 4, 1996
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N447AM](https://openairdocs.org/aircraft/N447AM), registered now
- Make and model: Aerosp ATR 72-212
- Registry model: [Aerosp ATR 72-212](https://openairdocs.org/model/aerospatiale-atr-72-212) (OpenAirDocs)
- Aircraft serial: 447
- Engine: Pwa PW127
- System (JASC): [7261 · Turbine Engine Oil System](https://openairdocs.org/jasc/7261)
- Part: Case Drain
- Part number: 3047500
- Condition: Leaking
- Location: Nr 1 Eng
- Stage of operation: TX
- Nature of condition: B, J
- Precautionary procedure: E
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SIMA960642

## Discrepancy

ORD - FLT NR 4031 - AFTER BOTH ENGINES WERE RUNNING THE ELECTRICAL SMOKE INDICATOR ILLUMINATED.  THE CREW SHUT DOWN THE ENGINES AND PASSENGERS DEPLANED NORMALLY.  MAINTENANCE FOUND A LEAK AT INNER COMPRESSOR CASE DRAIN.  RAI'D NR 1 ENGINE DUE TO INTERNAL LEAK.  PERFORMED GROUND PERFORMANCE RUN.  OPS CHECKED GOOD AIRCRAFT RETURNED TO SERVICE.  (M)

---
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.