Service difficulty report · Friction Cup · Snias AS350D

Difficulty date
April 24, 2019
Submitted
August 17, 2020
Operation
General aviation
Make and model
Snias AS350D
Aircraft time
14,653 hours
Engine
Lyc LTS101600A3
Part
Friction Cup
Part number
350A2715920151
Condition
Worn
Location
Cyclic
Stage of operation
NR
How discovered
9
Nature of condition
O
Precautionary procedure
O

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

What was found

(CAN) HAD COMPLAINT OF FRICTION STICKING, THEN NO FRICTION, FOUND THE FRICTION BALL TO HAVE WEAR ON IT. ALSO HAD THE FRICTION CUP OR FOLLOWER ON IT (SUPPOSED TO BE A 1 PIECE ASSEMBLY, BREAK AND TURN INTO 3 PIECES. (P/N 350A27159100) THIS LOWER CUP WAS THEN ALLOWED TO DROP INTO THE CUP OF THE CYCLIC FRICTION BALL AND JAMB CONTROLS. THERE IS NO INSPECTION CRITERIA FOR THE FRICTION BALL (THIS IS OLD STYLE PRE -MOD 07-0682) I WOULD SUGGEST A ONE TIME INSPECTION OF OLD STYLE FRICTION BALL AND THE FRICTION CUP, AS THIS PROBLEM COULD HAVE BEEN A MAJOR PROBLEM. (TC# 20190430031)