# SDR CA131018006

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 9, 2013
- Submitted: September 14, 2015
- Operation: General aviation
- Make and model: Cessna 172M
- Registry model: [Cessna 172M](https://openairdocs.org/model/cessna-172m) (OpenAirDocs)
- Aircraft time: 21,905 hours
- Engine: Lyc O320E2D
- System (JASC): [6113 · Propeller Spinner Section](https://openairdocs.org/jasc/6113)
- Part: Bulkhead
- Part number: 05503214
- Condition: Cracked
- Location: Spinner
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA131018006

## Discrepancy

(CAN) UPON ACFT INSPECTION THE SPINNER WAS REMOVED TO DO VISUAL INSPECTION OF THE PROPELLER MOUNTING BOLTS AND SPINNER BULKHEADS, FORWARD AND AFT.  THE FORWARD SPINNER BULKHEAD, PN 0550321-4, WAS OBSERVED TO HAVE 5 CRACKS PRESENT AROUND THE HOLES FOR THE MOUNTING BOLTS.  ONLY 1 OF THE 6 MOUNTING BOLT HOLES WAS NOT FOUND TO HAVE A CRACK PRESENT.

---
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.