What was found
FOUND LOWER FORWARD ENGINE CASE THROUGH-BOLT NUT (LEFT) CRACKED ENTIRELY THROUGH. THIS IS THE NEW TWELVE POINT FLANGED NUT REQUIRED BY TELEDYNE CONT M92-9.
- Difficulty date
- November 18, 1999
- Submitted
- March 26, 2000
- Operation
- General aviation
- Aircraft
- N500AB
- Make and model
- Cessna 421B
- Aircraft serial
- 4210369
- Engine
- Cont GTSIO520H
- System (JASC)
- 7200 · Engine (Turbine/Turboprop)
- Part
- Nut
- Part number
- 652541
- Condition
- Cracked
- Location
- Lt Engine
- Stage of operation
- IN
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.