# SDR CA070530004

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 28, 2007
- Submitted: June 7, 2007
- Operation: General aviation
- Make and model: Aerosp ATR 42-320
- Registry model: [Aerosp ATR 42-320](https://openairdocs.org/model/aerospatiale-aeritalia-atr-42-320) (OpenAirDocs)
- Engine: Pwa PW121
- System (JASC): [7261 · Turbine Engine Oil System](https://openairdocs.org/jasc/7261)
- Part: Seal
- Part number: 36022375
- Condition: Leaking
- Location: Nr 1 Engine
- Component: Engine, Pwa, PW121
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: E
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA070530004

## Discrepancy

(CAN) WHILE CONDUCTING AN ACCEPTANCE CHECK FLIGHT, THE CREW OBSERVED A LOW OIL PRESSURE CONDITION ON THE NR 1 ENGINE. THE CREW CONDUCTED A PRECAUTIONARY SHUTDOWN OF THE ENGINE AND RETURNED TO POINT OF DEPARTURE AND LANDED WITHOUT FURTHER PROBLEM.   MAINTENANCE DETERMINED THE NR 1 STARTER GENERATOR DRIVE SEAL WAS LEAKING. THE SEAL WAS REPLACED AND THE AIRCRAFT RETURNED TO SERVICE AFTER SATISFACTORY GROUND RUN. (TC NR 20070530004)

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