Service difficulty report · Friction Ring · Snias AS350B3

Difficulty date
January 6, 2023
Submitted
January 11, 2023
Operation
Air carrier
Aircraft
N493LG
Make and model
Snias AS350B3
Aircraft serial
8764
Aircraft time
1,350 hours, 4,374 cycles
Part
Friction Ring
Condition
Damaged
Stage of operation
UK
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.

What was found

FOUND ON PRE-FLIGHT SUSPECT MOVEMENT BETWEEN SWASHPLATE UNI-BALL AND MAST AT TEFLON OUTER FRICTION RING. THE CORRECTIVE ACTION TAKEN BY THE MECHANIC ON DUTY AT THE TIME WAS “REMOVED TORN PEEL SHIM FROM TOP OF SWASHPLATE ASSEMBLY. REASSEMBLED TOP OF ROTATING RING OF SWASHPLATE. INSPECTION OF SWASHPLATE ASSEMBLY AND UNI-BALL FOUND TO BE GOOD.” I WAS DELAYED ON SUBMITTING THE SDR DUE TO THIS ITEM BEING FOUND ON A PREFLIGHT AND IT LOOK SOME TIME TO GATHER ALL THE DATA AND DETERMINE WHETHER THIS SITUATION WARRANTED AN SDR SUBMISSION.