Service difficulty report · Flex Coupling · Snias AS350B2

Difficulty date
December 10, 2010
Submitted
September 14, 2015
Operation
General aviation
Make and model
Snias AS350B2
Aircraft time
4,656 hours
Engine
Tmeca ARRIEL1D1
Part
Flex Coupling
Part number
350A351059
Condition
Corroded
Location
Main Rotor Drive
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.

What was found

(CAN) MAIN ROTOR DRIVE SHAFT FLEX COUPLING, PN: 350A35-1059-01. BOLT FOUND BADLY CORRODED. INSERT AT BOLT LOCATION LOOSE CAUSING SEPARATION OF FLEX PLATES.