# SDR 2013FA0000036

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 17, 2012
- Submitted: January 18, 2013
- Operation: General aviation
- Aircraft: N824VA
- Make and model: Piper PA-31T1
- Registry model: [Piper PA-31T1](https://openairdocs.org/model/piper-pa-31t1) (OpenAirDocs)
- Aircraft serial: 31T8104039
- Engine: Pwa PT6A11
- System (JASC): [7230 · Turbine Engine Compressor Section](https://openairdocs.org/jasc/7230)
- Part: Tie Rod
- Part number: 3019371
- Condition: Loose
- Location: Compressor
- Part time: 5,853 hours
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2013FA0000036

## Discrepancy

ENGINE WAS REMOVED FOR COMPRESSOR FOD.  ON DISASSEMBLY AT AN APPROVED CRS, IT WAS DETERMINED THE COMPRESSOR TIE BOLTS HAD LOST THE TIE ROD STRETCH (TORQUE) ON 4 OF THE 6 TIE BOLTS.  RESULTING IN COMPRESSOR BOWING (IMBALANCE) RESULTING IN COMPRESSOR RUB DOD.  PROBABLE CAUSE: IMPROPER ASSEMBLY AT O/H.

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