# SDR 96ZZZX2558

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 24, 1996
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N8643](https://openairdocs.org/aircraft/N8643), registered now
- Make and model: Bbavia 7KCAB
- Aircraft serial: 35473
- Engine: Lyc IO320E2A
- System (JASC): [8520 · Reciprocating Engine Power Section](https://openairdocs.org/jasc/8520)
- Part: Camshaft
- Part number: SL18840
- Condition: Damaged
- Location: Lobes
- Part time: 84 hours
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/96ZZZX2558

## Discrepancy

ANNUAL INSPECTION - LARGE AMOUNT OF METAL FRAGMENTS IN OIL PRESSURE AND OIL SUCTION SCREENS.  CYLINDERS REMOVED, 7 LIFTER BODIES NOT TURNING, ENGINE TEAR-DOWN REVEALED VERY LITTLE TAPER ON CAM LOBE TIPS EXCEPT NR 4 EXHAUST LUBE.  IT HAD .001 INCH TAPER AND WAS TURNING.  FURTHER INVESTIGATION REVEALED NR 3 CONNECTING ROD AND NR 3 ROD JOURNAL SCORED BADLY RENDERING CRANKSHAFT AND NR 3 ROD UNREPAIRABLE DUE TO LARGE FRAGMENT FROM NR 2 INTAKE LIFTER BODY PASSING THROUGH OIL SUCTION SCREEN AND BACK INTO OIL SYSTEM.

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