# SDR 2001F00004

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 14, 2001
- Submitted: June 7, 2001
- Operation: Air carrier
- Aircraft: [N311EA](https://openairdocs.org/aircraft/N311EA), registered now
- Make and model: Lkheed 10113851
- Aircraft serial: 193A1012
- Engine: Rroyce RB21122B02
- System (JASC): [7261 · Turbine Engine Oil System](https://openairdocs.org/jasc/7261)
- Part: O-Ring
- Part number: KB21353
- Condition: Pinched
- Location: Oil System
- Stage of operation: CR
- How discovered: O
- Nature of condition: K, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2001F00004

## Discrepancy

NR 3 ENGINE OIL QUANTITY DROPPED TO 1 QUART, OIL PRESSURE FLUCTUATED BUT DID NOT DROP BELOW 35 PSI.  AIRCRAFT LANDED WITHOUT INCIDENT.  FOUND DAMAGED (PINCHED) O-RING AT NR 3 ENGINE OIL PRESSURE FILTER BOWL CAP.  REMOVED AND REPLACED O-RING IAW MM 72-01-00.  RESERVICED ENGINE TO PROPER OIL LEVEL.  ENGINE RUN UP CHECK AND LEAK CHECK COMPLIED WITH.  NO LEAK NOTED, A/C RETURNED TO SERVICE.  (M)

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