What was found
(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.
- 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
- Part
- Bearing
- Part number
- 55601AM
- Condition
- Worn
- Location
- Rocker Arm
- Stage of operation
- IN
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.