What was found
CRANKCASE UPPER TIE BOLT THREADS WERE NOT CUT PROPERLY. THEY HAD A FLAT PROFILE LIKE THE THREADS WERE NOT CUT DEEP ENOUGH. CONDITION DISCOVERED WHEN ATTEMPTING TO INSTALL NUTS ON THE BOLT.
- Difficulty date
- October 31, 2002
- Submitted
- October 31, 2002
- Operation
- General aviation
- Engine
- Cont IO520D
- System (JASC)
- 8550 · Reciprocating Engine Oil System
- Part
- Bolt
- Part number
- 535810
- Condition
- Mismanufactured
- Location
- Crankcase
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- W
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.