- Difficulty date
- February 21, 2003
- Submitted
- February 25, 2003
- Operation
- Air carrier
- Make and model
- Bell 407
- Aircraft serial
- 53203
- Aircraft time
- 7,826 hours
- Part
- Pinion Gear
- Part number
- 6893672
- Part serial
- NN78560
- Condition
- Broken
- Location
- Engine G/B
- Part time
- 1,223 hours
- Component
- Gearbox
- Component part number
- 23063393
- Stage of operation
- NR
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOUND PINION GEARS HAD BROKEN GEAR TEETH CAUSING MASSIVE METAL IN OIL. THIS IS A REOCCURRING EVENT.
More about the Bell 407