What was found
ENGINE REMOVED DUE TO CYCLED OUT 2ND STAGE WHEEL. UPON INSPECTION OF TURBINE PARTS NOTED THE FOLLOWING: SULFIDATION OF 1ST STAGE WHEEL BLADES CAUSING DELAMINATION ON AFT SIDE OF LEADING EDGES. SCRAPPED 1ST STAGE WHEEL.
- Difficulty date
- January 2, 1996
- Submitted
- March 26, 2000
- Operation
- General aviation
- Aircraft
- N5421E
- Make and model
- Bolkms BO105S
- Aircraft serial
- S806
- Engine
- Allsn 250C20B
- System (JASC)
- 7250 · Turbine Section
- Part
- Blade
- Part number
- 6886407
- Condition
- Delaminated
- Location
- 1st Stage Wheel
- Part time
- 725 hours
- Component
- 6898735
- 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.