# SDR 99ZZZX3664

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 8, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N252MA](https://openairdocs.org/aircraft/N252MA), registered now
- Make and model: Piper PA-31P
- Registry model: [Piper PA-31P](https://openairdocs.org/model/piper-pa-31p) (OpenAirDocs)
- Aircraft serial: 31P33
- Engine: Lyc TIGO541E1A
- System (JASC): [8520 · Reciprocating Engine Power Section](https://openairdocs.org/jasc/8520)
- Part: Crankshaft
- Part number: 75456
- Condition: Failed
- Location: Engine
- Stage of operation: NR
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/99ZZZX3664

## Discrepancy

COUNTERWEIGHT ON NR 3 ATTACH PORT ON CRANKSHAFT CAME OFF.  CRANKSHAFT ATTACH PORTS BOTH FAILED.  AIRCRAFT RETURNED TO AIRPORT AND LANDED SAFELY.

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