What was found
GEARBOX CLUTCH MISENGAGEMENT WITHOUT AUDIBLE OR PHYSICAL (HELICOPTER JOLT) INDICATIONS. DURING START IT SLIPPED AT 20% N1 ENGAGED AT 30% N1 MOMENTARILY SLIPPED AT 50% N1.
- Difficulty date
- April 23, 1997
- Submitted
- March 26, 2000
- Operation
- Air carrier
- Aircraft
- N107X
- Make and model
- Bell 412
- Aircraft serial
- 33113
- System (JASC)
- 7210 · Turbine Engine Reduction Gear
- Part
- Gearbox
- Part number
- 3024780
- Condition
- Clutch Slip
- Location
- Combining Box
- Part time
- 8,679 hours
- 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.