Service difficulty report · Bearing · Skrsky S92A

Difficulty date
November 1, 2010
Submitted
January 4, 2011
Operation
Air carrier
Make and model
Skrsky S92A
Part
Bearing
Part number
SB1137101
Condition
Brinelled
Location
Input Module
Part time
2,669 hours
Component
Input Module · Skrsky · S92MGB
Component part number
S92MGB
Stage of operation
IN
How discovered
9
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

(CAN) INPUT MODULE S/N: A171-00062 WAS RECEIVED INTO SHOP TO CARRY OUT MODIFICATION IAW CSN 92-068. DURING A GENERAL FUNCTION CHECK OF THE UNIT, FOUND THAT THE IFWU WHEN ROTATED WAS ROUGH AND JUMPY WHILE FREEWHEELING, DISASSEMBLY AND FURTHER INSPECTION WAS REQUIRED. UPON FURTHER INSPECTION OF THE IFWU BEARING SB1137-101 S/N: 07-2263 IT WAS FOUND TO HAVE FALSE BRINELLING ON RACES, AND BEARING SB1074-101 S/N: 10287 WAS ROUGH WHEN ROTATED. BEARING SB1074-101 S/N: 10287 WAS OPENED TO FIND FLATS WORN ON INNER RACE AND OUTER RACES NR10-09430.