What was found
CRANKCASE THROUGH-BOLT WAS TORQUED TO THE MANUFACTURER'S SPECIFICATIONS. THE NEXT DAY, FOUND IT IN TWO PIECES. SUBMITTER STATED THIS IS THE SECOND NEW BOLT TO DO THIS. BROKE AT O-RING GROOVE.
- Difficulty date
- September 27, 1995
- Submitted
- March 26, 2000
- Operation
- General aviation
- Engine
- Cont IO470N
- System (JASC)
- 8520 · Reciprocating Engine Power Section
- Part
- Bolt
- Part number
- 641931981
- Condition
- Failed
- Location
- Case Thru-Bolt
- Stage of operation
- IN
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.