# SDR 2026FA0000185

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 17, 2025
- Submitted: March 13, 2026
- Operation: General aviation
- Aircraft: [N364SP](https://openairdocs.org/aircraft/N364SP), registered now
- Make and model: Cessna 172S
- Registry model: [Cessna 172S](https://openairdocs.org/model/cessna-172s) (OpenAirDocs)
- Aircraft serial: 172S8782
- Aircraft time: 4,700 hours
- System (JASC): [6110 · Propeller Assembly](https://openairdocs.org/jasc/6110)
- Part: Bulkhead
- Part number: 05522311
- Condition: Cracked
- Location: Propeller
- Stage of operation: IN
- How discovered: W
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2026FA0000185

## Discrepancy

INSPECTED SPINNER BULKHEAD FOR CRACKS DURING A FLEET SAFETY STAND DOWN AFTER DISCOVERING CRACKS IN SPINNER BULKHEADS OF OUR OTHER AIRCRAFT.  CRACKS ARE VERY HARD TO SEE VISUALLY WITH THE NAKED EYE.   USING A 10X MAGNIFIER AND KNOWING WHERE TO LOOK THAT RADIATE FROM UNDER THE PROPELLER BOLT HOLE WASHERS.  THIS AIRCRAFT, SINCE 4/17/25 HAS HAD 3 BULKHEAD REPLACEMENTS SINCE US KNOWING HOW (USING MAGNIFICATION ) AND WHERE TO LOOK.

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