What was found
(AUS) NR 5 CYLINDER EXHAUST VALVE KEY BROKEN WITH DAMAGE TO TAPPET AND SOCKET. SUSPECT TAPPET DAMAGED AT MANUFACTURE CAUSING INCORRECT VALVE CLEARANCE.
- Difficulty date
- January 19, 2001
- Submitted
- March 20, 2001
- Operation
- General aviation
- Make and model
- Robsin R44
- Engine
- Lyc O540F1B5
- System (JASC)
- 8530 · Reciprocating Engine Cylinder Section
- Part
- Key
- Part number
- 17C21191
- Condition
- Broken
- Location
- Engine
- Part time
- 337 cycles
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.