# SDR 98ZZZX916

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 10, 1998
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N56WB](https://openairdocs.org/aircraft/N56WB), registered now
- Make and model: Piper PA 28-180
- Registry model: [Piper PA 28-180](https://openairdocs.org/model/piper-anderson-pa-28-180) (OpenAirDocs)
- Aircraft serial: 284470
- Engine: Lyc O360A3A
- System (JASC): [8520 · Reciprocating Engine Power Section](https://openairdocs.org/jasc/8520)
- Part: Crankshaft
- Part number: 77037
- Condition: Cracked
- Location: Nr 5 Journal
- Part time: 9 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/98ZZZX916

## Discrepancy

CRANKSHAFT WAS FOUND CRACKED AFTER PRECAUTIONARY REMOVAL FOLLOWING RECENT ENGINE OVERHAUL (8.8 HRS).  CRANKSHAFT WAS PROCESSED BY REPAIR AGENCY PRIOR TO INSTALLATION.  SUBMITTER SUGGGESTED PART MAY HAVE BEEN IMPROPERLY MACHINED.  CRACK WAS AT NR 5 JOURNAL RADIUS APPROXIMATELY 2.50 INCHES IN LENGTH.

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