What was found
BEARING WAS INSTALLED ON GEARSHAFT, P/N 4639311043 MMIR FORM NR 78853B, AND GEAR WAS FOUND BAD. BEARING WAS DAMAGED DURING REMOVING IAW BK117REM305 AND MUST BE REPLACED.
- Difficulty date
- February 19, 1997
- Submitted
- March 26, 2000
- Operation
- General aviation
- Make and model
- Bolkms BK117C1
- System (JASC)
- 6520 · Tail Rotor Gearbox
- Part
- Bearing
- Part number
- 4639310012
- Condition
- Damaged
- Location
- T/R Gearbox
- 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.