Service difficulty report · Sprag Clutch · Robsin R44RAVENII

Difficulty date
September 1, 2008
Submitted
December 18, 2008
Operation
General aviation
Make and model
Robsin R44RAVENII
Aircraft time
1,294 hours
Engine
Lyc IO540AE1A5
Part
Sprag Clutch
Part number
C1883
Condition
Damaged
Location
Main Rotor
Part time
3,773 hours
Stage of operation
TO
How discovered
O
Nature of condition
O
Precautionary procedure
C

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

What was found

(CAN) UNTIL THE OFFICIAL REPORT ARRIVES, THIS IS WHAT IS DETERMINED HAPPENED. DURING TAKEOFF THE PILOT EXPERIENCED A LOUD NOISE AND THEN ACFT YAWED SLIGHTLY. THE ACFT LANDED WITHOUT INCIDENT. THE CLUTCH WAS REPLACED AND ACFT RETURNED TO SERVICE. DETAILS WILL BE BROUGHT FORWARD ONCE THE CLUTCH IS DISASSEMBLED AND A TEAR DOWN REPORT IS AVAILABLE.