Service difficulty report · Nr 5 Bearing · Boeing 737222

Difficulty date
June 27, 1997
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N9012U
Make and model
Boeing 737222
Aircraft serial
19050
Engine
Pwa JT8D7B
Part
Nr 5 Bearing
Part number
710102
Condition
Worn
Location
Nr 2 Engine
Part time
39,339 hours
Stage of operation
TO
Nature of condition
O
Precautionary procedure
C

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

NUMBER 2 OIL BYPASS LIGHT ON STEADY. *S/D* THE OIL FILTER WAS FOUND TO BE CLOGGED WITH METAL. THE SOURCE OF THE METAL WAS FOUND TO BE THE NUMBER 5 ROLLER BEARING. THE CONDITION OF THE BEARING IS SUCH THAT A DEFINITIVE CAUSE OF THE FAILURE COULD NOT BE MADE. THE ROLLER ELEMENTS WERE WORN FLAT AND BOTH INNER AND OUTER RACES EXHIBITED SIGNS OF SPALLING.