# SDR 99ZZZX1001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 24, 1999
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N494SP](https://openairdocs.org/aircraft/N494SP), registered now
- Make and model: Cessna 172S
- Registry model: [Cessna 172S](https://openairdocs.org/model/cessna-172s) (OpenAirDocs)
- Aircraft serial: 172S8035
- System (JASC): [8011 · Engine Starter](https://openairdocs.org/jasc/8011)
- Part: Support
- Part number: 31M22045
- Condition: Cracked
- Location: Starter
- 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/99ZZZX1001

## Discrepancy

NEW CESSNA WITH 50.0 HOURS, WHILE ACCOMPLISHING A PHASE 1 INSPECTION, FOUND THE STARTER RING GEAR SUPPORT ASSY HAD A 1.50 INCH CRACK ON THE OUTER FACE .25 INCH AFT OF THE FRONT FACE.  REMOVAL OF THE PROPELLER AND SUPPORT ASSY REVEALED A CASTING DEFECT ON THE AFT SIDE OPPOSITE TO THE CRACK.

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