# SDR 97ZZZX1224

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 18, 1997
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: N508PC
- Make and model: Socata TB9
- Registry model: [Socata TB9](https://openairdocs.org/model/socata-group-aerospatiale-tb9) (OpenAirDocs)
- Aircraft serial: 1477
- Engine: Lyc O320D2A
- System (JASC): [8520 · Reciprocating Engine Power Section](https://openairdocs.org/jasc/8520)
- Part: Crankshaft
- Condition: Cracked
- Location: Flange
- 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/97ZZZX1224

## Discrepancy

THIS AIRCRAFT IS USED EXCLUSIVELY FOR FLIGHT TRAINING.  ON PRE-FLIGHT, STUDENT AND INSTRUCTOR FOUND OIL ON THE COWLING.  UPON INSPECTION, TWO CRACKS WERE FOUND ON THE CRANKSHAFT COVERGING AT THE RADIUS OF THE CRANKSHAFT AND CRANKSHAFT FLANGE.  THIS ENGINE AND PROPELLER HAVE NO HISTORY OF PROPELLER STRIKE OR SUDDEN STOPPAGE.  IN SERVICE DATE FOR THIS ENGINE AND PROPELLER 4/92.  TOTAL TIME SINCE NEW, ENGINE AND PROPELLER, 1,809 HOURS.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.