What was found
ENGINE REMOVED DUE TO TURBINE INSPECTION. UPON INSPECTION OF TURBINE PARTS NOTED: STEP WEAR BEYOND SERVICEABLE LIMITS ON N1 COUPLING SPLINES (FAILED NO-GO GAUGE) INSTALLED A NEW N1 COUPLING.
- Difficulty date
- December 18, 1997
- Submitted
- March 26, 2000
- Operation
- Air carrier
- Aircraft
- N137AE
- Make and model
- Bolkms BO105S
- Aircraft serial
- S851
- Engine
- Allsn 250C20B
- System (JASC)
- 7250 · Turbine Section
- Part
- Coupling
- Part number
- 6898977
- Condition
- Worn
- Location
- Eng N1
- Part time
- 516 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.