What was found
(AUS) ENGINE PISTON TOP COMPRESSION RINGS EXHIBITED SLIGHT SIGNS OF DELAMINATION. ENGINE OIL VERY DIRTY. PREMATURE WEAR ALSO FOUND ON EXHAUST VALVE ROTATING CAPS. (CASA NR 510001792)
- Difficulty date
- December 12, 2005
- Submitted
- June 6, 2006
- Operation
- General aviation
- Make and model
- Beech 76
- Engine
- Lyc O360A1G6D
- Propeller
- Hartzl HCM2YR
- System (JASC)
- 8520 · Reciprocating Engine Power Section
- Part
- Piston Ring
- Part number
- AEL74241PL
- Condition
- Delaminated
- Location
- Engine
- Part time
- 717 hours
- 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.