What was found
UPON INSPECTION OF PARTS, FOUND ROUGH GEAR TEETH EDGES AT RADIUS, CAUSING DMAGE TO MATING GEAR TEETH. THIS IS DUE TO IMPROPER MACHING AT RADIUS.
- Difficulty date
- March 25, 2002
- Submitted
- April 16, 2002
- Operation
- Air carrier
- Aircraft
- N537AL
- Make and model
- Bell 407
- Aircraft serial
- 53230
- System (JASC)
- 6320 · Main Rotor Gearbox
- Part
- Gear
- Part number
- 6893673
- Part serial
- NN144757
- Condition
- Damaged
- Location
- M/R Gearbox
- Part time
- 1,878 hours
- Component
- Gearbox · C47B
- Component part number
- 23063393
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.