# SDR CA100917002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 16, 2010
- Submitted: January 4, 2011
- Operation: Air carrier
- Make and model: Piper PA-31T
- Registry model: [Piper PA-31T](https://openairdocs.org/model/piper-pa-31t) (OpenAirDocs)
- Propeller: Hartzl HCB3TN3
- System (JASC): [6111 · Propeller Blade Section](https://openairdocs.org/jasc/6111)
- Part: Blades
- Part number: T10173A8R
- Condition: Wrong Part
- Location: Propeller
- Stage of operation: IN
- How discovered: V
- Nature of condition: W
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA100917002

## Discrepancy

UPON DISASSEMBLY OF THE PROPELLER AND REMOVAL OF BLADES, THE BLADES REMOVED WERE FOUND TO BE NON APPROVED BLADES FOR THIS ACFT INSTALLATION.  THESE BLADES WERE ORIGIONALY T10173A-6Q.  ALSO, ACCORDING TO MFG THERE IS NO APPROVED TIP DWG IN MANUAL 133C FOR A T10173-8R BLADE.  SO WHO EVER CUT THESE BLADES DOWN FROM A -6Q HAD NO DATA TO GO BY.  THESE BLADES WILL BE REPLACED WITH THE PROPER APPROVED BLADES.

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