# SDR 0100571158

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 16, 2001
- Submitted: February 22, 2001
- Operation: Air carrier
- Aircraft: [N158US](https://openairdocs.org/aircraft/N158US), registered now
- Make and model: Doug DC-10-40
- Registry model: [Doug DC-10-40](https://openairdocs.org/model/douglas-dc-10-40) (OpenAirDocs)
- Aircraft serial: 46767
- Aircraft time: 76,200 hours, 26,637 cycles
- Engine: Pwa JT9D20J
- Engine time: 69,860 hours, 25,562 cycles
- System (JASC): [7261 · Turbine Engine Oil System](https://openairdocs.org/jasc/7261)
- Part: Engine
- Condition: Leaking
- Location: Nr 1 Engine
- Stage of operation: CL
- How discovered: O
- Nature of condition: K, B
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/0100571158

## Discrepancy

DURING CLIMB AFTER TAKEOFF, THE CREW REPORTED SMOKE ENTERING THE CABIN FROM A PNEUMATIC SOURCE.  THE FLIGHT RETURNED TO LAX AND LANDED WITHOUT INCIDENT.  MAINTENANCE INSPECTED THE AIRCRAFT AND DETERMINED THE NR 1 ENGINE TO BE LEAKING OIL AND CONTAMINATING THE NR 1 PNEUMATIC SYSTEM.  THE AIRCRAFT WAS FERRIED TO MSP TO REPLACE THE NR 1 ENGINE.

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