Service difficulty report · Bearing · Snias AS350BA

Difficulty date
July 29, 2008
Submitted
September 2, 2008
Operation
General aviation
Aircraft
N277HC
Make and model
Snias AS350BA
Aircraft serial
2052
Engine
Tmeca ARRIEL1
Part
Bearing
Part number
704A33651158
Part serial
NR1374
Condition
Worn
Location
M/R Swashplate
Part time
688 hours
Component
Swashplate
Component part number
350A37100306
Stage of operation
IN
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

COMPLIED WITH 2 YEAR / 500 HR INSP. TASK 62.30.00.601 M/R SHAFT INSP. WHILE PERFORMING INSP OF SWASHPLATE GUIDE UNIBALL FOUND WHILE ROTATING SWASHPLATE. UPPER SEAL FOR BRG WAS NOT ROTATING BECAUSE IT WAS NOT FIRMLY ATTACHED TO OUTER RACE OF BRG WITH THE SEAL BEING LOOSE & UNSECURED IT WORE INTO SWASHPLATE BRG OUTER STOP RING. REPLACED SWASHPLATE BRG, OUTER STOP RING WITH NEW. RECOMMENDATION WOULD BE WHILE GREASING SWASHPLATE BRG DURING 100 HOUR INSP, LIFT SWASHPLATE BOOT TO INSPECT BRG SEAL FOR MOVEMENT DURING ROTATION. (L)