What was found
PILOT REPORTED 2 PER VIBRATION. INSPECTION FOUND RUBBER SURROUNDING STEEL BUSHING ON ONE OF FOUR MAIN GEAR BOX MOUNTS HAD FAILED ALLOWING EXCESS MOVEMENT OF MAIN ROTOR DRIVE SYSTEM.
- Difficulty date
- December 7, 2019
- Submitted
- February 4, 2020
- Operation
- General aviation
- Aircraft
- N3019S
- Make and model
- Robsin R22
- Aircraft serial
- 4150
- Engine
- Lyc O360J2A
- System (JASC)
- 6320 · Main Rotor Gearbox
- Part
- Mount
- Part number
- A6531
- Condition
- Damaged
- Location
- M/R Gearbox
- Stage of operation
- NR
- How discovered
- O
- Nature of condition
- E
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.