# SDR CA990818015

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 11, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Make and model: Aerosp ATR 42-300
- Registry model: [Aerosp ATR 42-300](https://openairdocs.org/model/aerospatiale-aeritalia-atr-42-300) (OpenAirDocs)
- Engine: Pwa PW120
- Propeller: Hamstd 14SF5
- System (JASC): [7261 · Turbine Engine Oil System](https://openairdocs.org/jasc/7261)
- Part: Valve
- Condition: Sticking
- Location: Oil System
- Stage of operation: CR
- Nature of condition: K
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA990818015

## Discrepancy

(CAN) ENGINE LOOSING OIL OUT BREATHER.  RESULT WAS P3- P2.5 PRESSURE SWITCH STICKY IN P3 POSITION.  VALVE DISASSEMBLED AND CLEANED.

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