What was found
ENGINE SHOOK VIOLENTLY. MIXTURE CONTROL WAS PULLED BACK TO CUT-OFF IMMEDIATELY. THE ENGINE SEIZED UP. A SAFE LANDING WAS MADE. TEAR-DOWN INSPECTION REVEALED THE CRANKSHAFT HAD FAILED.
- Difficulty date
- August 17, 1999
- Submitted
- March 26, 2000
- Operation
- General aviation
- Aircraft
- N1172L
- Make and model
- Mooney M20R
- Aircraft serial
- 290183
- Engine
- Cont IO550N
- System (JASC)
- 8520 · Reciprocating Engine Power Section
- Part
- Crankshaft
- Condition
- Failed
- Location
- Engine
- Part time
- 10 hours
- Stage of operation
- NR
- Nature of condition
- O
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.