Service difficulty report · Bearing · Aerosp ATR42*

Difficulty date
August 15, 1995
Submitted
March 26, 2000
Operation
General aviation
Make and model
Aerosp ATR42*
Engine
Pwa PW121
Part
Bearing
Part number
310924401
Condition
Spalled
Location
Rgb Nr 15 Brg
Part time
11,492 hours
Component
Pwa
Stage of operation
NR
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)REDUCTION GEAR BOX REMOVED FOR METAL ON THE CHIP DETECTOR. #15 BEARING HAD ONE ROLLER HEAVILY SPALLED AS WELL AS ELECTRICAL PITTING AND MECHANICAL DENTS ON THE RACEWAY. SEVERAL STEEL COMPONENTS SHOWEDHIGH LEVELS OF MAGNETISM CONSISTENT WITH A LIGHTNING STRIKE.

More about the Aerosp ATR-42