Service difficulty report · Drive Shaft · Robsin R44RAVENII

Difficulty date
July 8, 2017
Submitted
December 17, 2017
Operation
General aviation
Aircraft
N810BK
Make and model
Robsin R44RAVENII
Aircraft serial
11051
Aircraft time
996 hours
Engine
Lyc IO540A1A5
Engine time
996 hours
Part
Drive Shaft
Part number
C1664
Part serial
3573
Condition
Sheared
Location
M/R Gearbox
Part time
996 hours
Stage of operation
CR
How discovered
O
Nature of condition
E, F
Precautionary procedure
A

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

THE CLUTCH SHAFT SHEARED IN HALF DURING FLIGHT.