# SDR 96ZZZX2537

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 13, 1996
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N83086
- Make and model: Bell 206B
- Registry model: [Bell 206B](https://openairdocs.org/model/bell-206b) (OpenAirDocs)
- Aircraft serial: 914
- Engine: Allsn 250C20
- System (JASC): [7250 · Turbine Section](https://openairdocs.org/jasc/7250)
- Part: Turbine
- Part number: 6898735
- Condition: Making Metal
- Location: Nr 8 Bearing
- Part time: 10,432 hours
- Stage of operation: AP
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/96ZZZX2537

## Discrepancy

ENGINE CHIP LIGHT ILLUM ON FINAL APPROACH.  MECHANIC INSPECTED ENG CHIP PLUGS & FND FUZZ & LIGHT METAL ON UPPER CHIP PLUG.  PENALTY RUN ACCOMPLISHED & WHILE ON SHUT DOWN AT APPROX 35-40 PERCENT N1, MECHANIC HEARD NOISE (HVY GRINDING) FROM ENG AREA.  MECHANIC MOTORED ENG & ON SPOOL DOWN, HEARD A GRINDING NOISE COMING FROM TURB ASSY.  MECH PULLED ENG CHIP PLUGS & FND A MASSIVE AMT OF METAL ON UPPER CHIP PLUG.  UPON TEAR DOWN OF ENG ASSY, INSP REVEALED N1 TURB HARD TO TURN, & A LARGE AMT OF METAL NOTED IN ENG GEARBOX.  FURTHER INSP REVEALED FUEL NOZZLE CRACKED APPROX 6-8 INCHES IN LENGTH.  NOTED NR 8 BEARING DESTROYED.  BOTH GRBX ASSYS SN CAG-35884 & MINI SN KEY-1028 IST (780.5) WERE SENT FOR REPAIR & EVALUATION.

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