What was found
DURING THE ACCOMPLISHMENT OF AN TECHNICAL BULLETIN BT109EP-128 ON A MAIN GEARBOX; A CROWN GEAR, WAS FOUND TO HAVE A CRACK. THE CROWN GEAR WILL BE REPLACED BY A NEW SUPPORT ASSY.
- Difficulty date
- April 23, 2013
- Submitted
- April 25, 2013
- Operation
- General aviation
- Filed by
- DT1R098K
Leonardo Helicopters U.S. Corporation - Aircraft
- N143CF
- Make and model
- Agusta A109E
- Aircraft serial
- 11142
- Aircraft time
- 4,924 hours
- Engine
- Pwc PW206C
- System (JASC)
- 6320 · Main Rotor Gearbox
- Part
- Gear
- Part number
- 109040307103
- Part serial
- E43526
- Condition
- Cracked
- Location
- M/R Gearbox
- Part time
- 4,278 hours
- 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.