# SDR 2012F00031

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 19, 2011
- Submitted: December 19, 2011
- Operation: General aviation
- Aircraft: [N35475](https://openairdocs.org/aircraft/N35475), registered now
- Make and model: Piper PA-31-350
- Registry model: [Piper PA-31-350](https://openairdocs.org/model/piper-pa-31-350) (OpenAirDocs)
- Aircraft serial: 318052023
- Aircraft time: 8,729 hours
- Engine: Lyc TIO540J2B
- Engine time: 1,093 hours
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Lifter
- Part number: 15B26064
- Condition: Broken
- Location: Exhaust Valve
- Part time: 1,093 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/2012F00031

## Discrepancy

DURING ANNUAL INSP, A PIECE OF METAL (APP .2500" SQUARE) WAS FOUND IN THE SUCTION SCREEN.  INSPECTION REVEALED NR 6 EXHAUST LIFTER BODY WAS MISSING A PIECE WHERE THE HYD TAPPET PLUNGER ASSY INSERTS INTO THE LIFTER BODY.  NO REPORTS OF LOSS IN ENGINE PERFORMANCE.

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