# SDR CA050127005

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 20, 2005
- Submitted: March 3, 2005
- Operation: General aviation
- Engine: Pwa JT15D1A
- System (JASC): [7200 · Engine (Turbine/Turboprop)](https://openairdocs.org/jasc/7200)
- Part: Seal
- Condition: Leaking
- Location: Engine
- Stage of operation: NR
- How discovered: O
- Nature of condition: K, B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA050127005

## Discrepancy

(CAN) CAUSE OF SMOKE ODOR IN CABIN DUE TO OIL CONTAM OF GAS PATH AIRFLOW  DUE TO A LARGE NR OF AIR/OIL SEALS HAD EXCESSIVE CLEARANCES, ALLOWING OIL TO ENTER SECONDARY AIR SYS. ENG DID HAVE A SIGNIFICANT AMOUNT OF FRETTING DAMAGE ON COMBUSION COMPONENTS, WHICH INDICATED THAT ENG OPERATED WITH VIBRATION FOR SOME TIME.  RETURNED ENG TO SERVICE, ALL WORN AIR SEALS WILL BE REPAIRED/REPLACED BACK TO THE O/H MANUAL LIMITS.  NR 4 BEARING HOUSING WILL HAVE ALL PACKINGS & GASKETS CHANGED TO ENSURE NO FURTHER LEAK. FIT BETWEEN LOW COMPRESSOR SHAFT & LOW TURBINE SHAFT WILL BE RESTORED TO AVOID TO POSSIBILITY OF VIBRATION PROBLEMS. ENG WILL BE TESTED.

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