What was found
THIS ENGINE HAD TEST TIME ONLY ON A FACTORY REMANUFACTURED ENGINE. ALL SIX BOTTOM PISTON RINGS WERE EMBEDDED WITH ALUMINUM CAUSING RINGS TO 'STICK'. THIS ALSO CAUSED THE PISTONS TO REJECT.
- Difficulty date
- January 13, 1995
- Submitted
- March 26, 2000
- Operation
- General aviation
- Engine
- Cont IO520BB
- System (JASC)
- 8530 · Reciprocating Engine Cylinder Section
- Part
- Piston Ring
- Part number
- 648008
- Condition
- Sticking
- Location
- Cylinder
- Stage of operation
- IN
- Nature of condition
- W
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.