What was found
CHIP LIGHT, EXCESSIVE METAL ON LOWER CHIP DETECTOR. FOUND INPUT PINION TO HAVE BROKEN TOOTH, CAUSING EXCESSIVE DAMAGE TO MAIN CASE.
- Difficulty date
- April 9, 2001
- Submitted
- May 17, 2001
- Operation
- Air carrier
- Aircraft
- N917AL
- Make and model
- Bell 407
- Aircraft serial
- 53381
- System (JASC)
- 6320 · Main Rotor Gearbox
- Part
- Pinion Gear
- Part number
- 407040034101
- Part serial
- A544
- Condition
- Broken
- Location
- Transmission
- Part time
- 1,998 hours
- Component
- Transmission · Bell
- Component part number
- 407040006107
- Stage of operation
- NR
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.