What was found
ENGINE REMOVED DUE TO MAIN ENGINE DRIVESHAFT FAILURE. UPON INSPECTION OF GEARBOX PARTS NOTED THE FOLLOWING: SPALLING ON GEAR TEETH OF BOTH GEARSHAFTS. INSTALLED NEW GEARSHAFT. SEE MMIR #4704 FOR OTHER GEARSHAFT INFORMATION.
- Difficulty date
- April 7, 1995
- Submitted
- March 26, 2000
- Operation
- General aviation
- Aircraft
- N5796T
- Make and model
- Aerosp AS355F1
- Aircraft serial
- 5166
- Engine
- Allsn 250C20F
- System (JASC)
- 7210 · Turbine Engine Reduction Gear
- Part
- Gearshaft
- Part number
- 23056128
- Condition
- Spalled
- Location
- Eng Gr Box
- Part time
- 361 hours
- Component
- 23001938
- 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.