SDR 20010523CW002

Service difficulty report · Bearing · Snias AS350B2

Difficulty date: April 7, 2001
Submitted: May 23, 2001
Operation: General aviation
Aircraft: N4035W
Make and model: Snias AS350B2
Aircraft serial: 2912
System (JASC): 6510 · Tail Rotor Drive Shaft
Part: Bearing
Part number: 83A851BC3
Condition: Rotated
Location: T/R Drive Shaft
Part time: 2,671 hours
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

AT A SCHEDULED INSPECTION THE BEARING PN 83A851BC3 HAD ROTATED IN THE RUBBER BUSHING PN FA3819 APPROX .3750. WE HAVE BEEN COMPLYING WITH SB REGARDING THE GREASING AND INSPECTION OF THESE BEARINGS AND STILL HAD A BEARING TURN. THIS IS AN AREA THAT CALLS FOR SPECIAL ATTENTION DURING INSPECTIONS AND DAILY PRE FLIGHTS. AT THIS TIME WE ARE INSTALLING THE NEWER TYPE BEARINGS THAT THIS SB DOES NOT APPLY TO.