What was found
(CAN) EXHAUST VALVE STEM FOUND WORN. SUSPECT BUILD UP OF CARBON POSSIBLY DUE TO A COMBINATION 100 LOW LEAD FUEL AND SYNTHETIC OIL USAGE. TECHNICAL BULLETIN 912-13 ADDRESSES THIS PROBLEM.
- Difficulty date
- October 15, 1995
- Submitted
- March 26, 2000
- Operation
- Air carrier
- Make and model
- Diamon DA20A1
- Engine
- Rotax ROTAX912
- System (JASC)
- 8530 · Reciprocating Engine Cylinder Section
- Part
- Valve
- Part number
- R854116
- Condition
- Worn
- Location
- Exhaust
- Part time
- 898 hours
- Stage of operation
- IN
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.