# SDR COEA0802903

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 5, 2008
- Submitted: July 28, 2008
- Operation: Air carrier
- Aircraft: [N903FX](https://openairdocs.org/aircraft/N903FX), registered now
- Make and model: Aerosp ATR 42-320
- Registry model: [Aerosp ATR 42-320](https://openairdocs.org/model/aerospatiale-aeritalia-atr-42-320) (OpenAirDocs)
- Aircraft serial: 179
- Engine: Pwa PW121
- System (JASC): [7261 · Turbine Engine Oil System](https://openairdocs.org/jasc/7261)
- Part: Oil Cap
- Condition: Unsecure
- Location: Nr 1 Engine
- Stage of operation: CL
- How discovered: O
- Nature of condition: W, K, J
- Precautionary procedure: E, A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/COEA0802903

## Discrepancy

AIR TURNBACK, & ENG SHUTDOWN:  FLT 8813 CPR TO JAC:  ON CLIMBOUT FROM CPR AT APPROXIMATELY 500 FT AGL.  THE CREW NOTICED FLUCTUATING OIL PRESSURE ON THE NR 1 ENG FOLLOWED BY AN AUDIO MASTER WARNING AND LOW OIL PRESSURE LIGHT.  A PRECAUTIONARY ENG SHUTDOWN OF NR 1 ENG WAS PERFORMED.  THE RETURN TO CPR WAS MADE WITHOUT INCIDENT.  INSPECTION OF THE NR 1 ENG FOUND THE ENG OIL CAP PARTIALLY OFF.  AN ENG LOW OIL PRESSURE INSPECTION WAS PERFORMED.  INSPECTION OF THE OIL CAP FOUND NO DEFECTS.  SERVICED ENG OIL SYSTEM & REINSTALLED OIL CAP.  (S)

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