What was found
IN CRUISE FLIGHT 2,400 RPM/10,000 FEET, CIRCLIP FAILED (BECAME DISCONNECTED) ON VALVE LIFTER TAPPET NR 3 CYLINDER ASSEMBLY TAKING THE REST OF THAT CYLINDER'S UPPER VALVE TRAIN WITH IT. A SAFE LANDING WAS MADE TO A ROAD.
- Difficulty date
- July 12, 1999
- Submitted
- March 26, 2000
- Operation
- General aviation
- Aircraft
- N6694E
- Make and model
- Cessna 172N
- Aircraft serial
- 17272050
- Engine
- Lyc O320H2AD
- System (JASC)
- 8530 · Reciprocating Engine Cylinder Section
- Part
- Circlip
- Part number
- LW16586
- Condition
- Failed
- Location
- Tappet
- Part time
- 1,842 hours
- Stage of operation
- CR
- Nature of condition
- E
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.