What was found
(CAN) UPON INSPECTION OF THE GEAR DURING O/H OF THE GEARBOX, IT WAS FOUND THAT 1 OF THE ATTACHMENT BOLT HOLES HAD NO CHAMFER WHERE THE BOLT HEAD MEETS THE GEAR FACE. THIS RESULTED IN DAMAGE TO THE SHANK AREA UNDERNEATH THE BOLT HEAD.
- Difficulty date
- May 19, 2015
- Submitted
- August 5, 2015
- Operation
- General aviation
- Make and model
- Bell 206B
- Aircraft time
- 15,905 hours
- System (JASC)
- 6520 · Tail Rotor Gearbox
- Part
- Gear
- Part number
- 206040406101
- Condition
- Damaged
- Location
- Tail Rotor
- Stage of operation
- IN
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.