What was found
(CAN) RETAINING NUT FOR THE INPUT FLANGE ON THE TRANSMISSION (MAIN GEARBOX) BROKE IN 2 PIECES CAUSING THE SPLINED ADAPTER TO BACK OFF, WHICH CAUSED THE HYDRAULIC BELT TO RUN ON THE EDGE OF THE PULLEY. (TC NR 20060629006)
- Difficulty date
- June 27, 2006
- Submitted
- October 3, 2006
- Operation
- General aviation
- Make and model
- Snias AS350BA
- Aircraft time
- 10,697 hours
- Engine
- Tmeca ARRIEL1B
- System (JASC)
- 6320 · Main Rotor Gearbox
- Part
- Retaining Nut
- Part number
- DHS43911142
- Condition
- Broken
- Location
- M/R Gearbox
- Part time
- 1,392 hours
- Component
- Gearbox · Urocop
- Component part number
- 350A32030004
- Stage of operation
- AP
- How discovered
- O
- Nature of condition
- E
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.