# SDR 98ZZZX3415

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 23, 1998
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: N1555U
- Make and model: Cessna 172M
- Registry model: [Cessna 172M](https://openairdocs.org/model/cessna-172m) (OpenAirDocs)
- Aircraft serial: 17267171
- Engine: Lyc O320E2D
- System (JASC): [8520 · Reciprocating Engine Power Section](https://openairdocs.org/jasc/8520)
- Part: Camshaft
- Part number: 68864
- Condition: Corroded
- Location: Engine
- 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/98ZZZX3415

## Discrepancy

CORROSION PITS BEHIND EXPANSION PLATE IN CRANKSHAFT.  PITS ALONG EDGE BETWEEN EXPANSION PLATE AND ID OF CRANKSHAFT.  MISTAKENLY C/W AD 98-02-08.  CORROSION PITS NOTED, BUT NO CRACKS.

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