# SDR 2006FA0000565

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 5, 2005
- Submitted: June 6, 2006
- Operation: General aviation
- Aircraft: [N344HP](https://openairdocs.org/aircraft/N344HP), registered now
- Make and model: Piper PA-34-220T
- Registry model: [Piper PA-34-220T](https://openairdocs.org/model/piper-pa-34-220t) (OpenAirDocs)
- Aircraft serial: 3449244
- Engine: Cont TSIO360*
- Propeller: Mcauly 3AF32C*
- System (JASC): [6113 · Propeller Spinner Section](https://openairdocs.org/jasc/6113)
- Part: Bulkhead
- Part number: 100738005
- Condition: Cracked
- Location: Spinner
- Part time: 165 hours
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2006FA0000565

## Discrepancy

THIS AC WAS NEW IN 3/3/2002.  LT AND RT SPINNER BULKHEADS HAVE HAD TO BE REPLACED TWICE.  FIRST SET OF SPINNER BULKHEADS WERE REPLACED 12/28/2004, WITH 563.3 HOURS ON THEM.  PROPS WERE BALANCED TO PREVENT FURTHER PROBLEMS.  SECOND SET OF SPINNER BULKHEADS WERE REPLACED 8/26/05 WITH 165.9 HOURS ON THEM.  FINDING CRACKS CAN BE DIFFICULT BECAUSE BULKHEAD IS SANDWICHED BETWEEN 2 SHIMS.  FIRST SUSPECTED THAT THERE WAS ONLY 1 CRACK ON EACH BULKHEAD BUT AFTER REMOVING BULKHEAD AND THE SHIMS, NOTICED THAT EVERY HOLE HAD A CRACK COMING FROM IT.  PROBABLE CAUSE COULD BE IMPROPER INSTALLATION OF PROPELLER MOUNTING BOLTS OR DEFECTIVE MATERIAL.  RECOMMEND TAKING CLOSE LOOK EACH 100 HR, IF POSSIBLE LOOKING UNDER SHIMS.  (K)

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