What was found
(CAN) HEAD OF CAM FOLLOWER (TAPPET BODY) CRACKED OFF AND FELL INTO SUMP. VALVE COULD NOT ACTIVATE, SO LOST POWER FROM THAT CYLINDER. ON ENGINE TEAR DOWN, 3 OTHER FOLLOWERS WERE FOUND PARTIALLY CRACKED OR PIECES MISSING.
- Difficulty date
- June 18, 2004
- Submitted
- October 5, 2004
- Operation
- General aviation
- Make and model
- Cessna 172P
- Aircraft time
- 9,681 hours
- Engine
- Lyc O320D2J
- Propeller
- Mcauly 1C160DTM
- System (JASC)
- 8520 · Reciprocating Engine Power Section
- Part
- Tappet
- Part number
- LW72877
- Condition
- Cracked
- Location
- Engine
- Stage of operation
- CR
- How discovered
- 9
- Nature of condition
- E
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.