Service difficulty report · Bearing · Aerosp ATR42*

Difficulty date
October 10, 1995
Submitted
March 26, 2000
Operation
General aviation
Make and model
Aerosp ATR42*
Engine
Pwa PW121
Part
Bearing
Part number
310924401
Condition
Cracked
Location
Rgb Nr 15 Brg
Part time
10,543 hours
Stage of operation
IN
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) OPERATOR REPORTED METAL CONTAMINATION OF THE RGB OIL SYSTEM. NR 15 BEARING HEAVILY SPALLED ON THE ROLLERS AND OVER 120 DEGREES OF THE OUTER RACE. THE INNER RACE ALSO HAD AN AXIAL CRACK COMPLETELY THROUGH. UNABLE TO DETERMINE IF THE INNER RACE CRACK LED TO THE SPALLING OR IF THE SPALLING LED TO THE CRACK.

More about the Aerosp ATR-42