# SDR SWAA011571

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 25, 2001
- Submitted: May 31, 2001
- Operation: Air carrier
- Aircraft: N615SW
- Make and model: Boeing 737-3H4
- Registry model: [Boeing 737-3H4](https://openairdocs.org/model/boeing-737-3h4) (OpenAirDocs)
- Aircraft serial: 27698
- Aircraft time: 19,608 hours, 17,421 cycles
- Engine: Ge CFM56*
- Engine time: 44,712 hours, 37,610 cycles
- System (JASC): [7261 · Turbine Engine Oil System](https://openairdocs.org/jasc/7261)
- Part: Engine
- Part number: CFM56
- Part serial: 721125
- Condition: Leaking
- Location: Nr 1
- Stage of operation: TO
- How discovered: O
- Nature of condition: K, B
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA011571

## Discrepancy

ON TAKEOFF SMOKE APPEARED IN COCKPIT DUE TO OIL SEAL LEAK INTO BLEED SYS.  REMOVED AND REPLACED NR 1 ENG PER MM.

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