What was found
AT INSTALLATION, 5 OUT OF 6 SETS OF RINGS WERE DISCOVERED TO HAVE CHIPS IN THE CHROME ON THE OUTER CIRCUMFERENCE OF THE 2ND COMPRESSION RING. SUBMITTER SUGGESTED A POSSIBLE CAUSE AS LACK OF QUALITY CONTROL AT THE FACTORY.
- Difficulty date
- February 5, 1999
- Submitted
- March 26, 2000
- Operation
- General aviation
- Engine
- Cont IO520D
- System (JASC)
- 8530 · Reciprocating Engine Cylinder Section
- Part
- Piston Ring
- Part number
- 654719
- Condition
- Mismanufactured
- Location
- Engine
- 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.