What was found
CRACK WAS DISCOVERED WHILE LOOKING FOR OIL LEAK DURING 100 HOUR INSPECTION. THIS HAS BEEN GOING ON FOR YEARS WITH MFG ENGINES. THEIR ATTEMPTS OF HEAVIER CRANKCASES AND 7TH STUD APPLICATIONS HAVE DOEN NOTHING TO GET RID OF THE PROBLEM.
- Difficulty date
- August 19, 2003
- Submitted
- September 19, 2003
- Operation
- Air carrier
- Aircraft
- N5740V
- Make and model
- Beech 95C55
- Aircraft serial
- TE103
- Engine
- Cont IO520C
- System (JASC)
- 8520 · Reciprocating Engine Power Section
- Part
- Crankcase
- Part number
- 6525384
- Part serial
- 287355R
- Condition
- Cracked
- Location
- Engine
- Stage of operation
- NR
- How discovered
- 9
- Nature of condition
- W, K
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.