# SDR CA140107008

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 7, 2014
- Submitted: September 14, 2015
- Operation: General aviation
- Make and model: Airtrc AT401
- Aircraft time: 2,758 hours
- Engine: Pwa R1340AN1
- Propeller: Hamstd 22D40
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Bearing
- Part number: 55601AM
- Condition: Worn
- Location: Rocker Arm
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA140107008

## Discrepancy

(CAN) WHILE CARRYING OUT VALVE CLEARANCE INSPECTION, THE EXHAUST VALVE ROCKER ARM ON THE NR 7 CYLINDER WAS FOUND WITH EXCESSIVE PLAY BOTH RADIALLY AND AXIALLY. UPON REMOVAL BEARING BALLS FELL OUT OF THE BEARING CAGE.

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