# SDR 97FDEA00203

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 29, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N479FE
- Make and model: Boeing 727227
- Aircraft serial: 21461
- System (JASC): [7200 · Engine (Turbine/Turboprop)](https://openairdocs.org/jasc/7200)
- Part: Engine
- Condition: Damage
- Location: Nr 1
- Stage of operation: CR
- Nature of condition: Y
- Precautionary procedure: E
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/97FDEA00203

## Discrepancy

LOUD BANG HEARD IN CRUISE.  NR 1 ENGINE STABILIZED IN CRUISE AT 20 PERCENT N1-0 OIL PRESSURE, BUT QUANTITY OK (71-00-1749).  NR 1 ENGINE REPLACED, NOW READY FOR POWER 1 LEAK CHECK RUN.  EVIDENCE OF DAMAGE TO TOP OF GEAR BOX, INDICATING SUDDEN STOPPAGE.  NR 1 ENGINE REMOVED AND REPLACED PER W.C. NR 70T001, AND W/C NR 72T0301 AND J.R.H.  OPS CK NORMAL, OK FOR SERVICE.  ENG OFF S/N 689919, JT8D-17  ENG ON S/N 709283, JT8D-17A.

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