Service difficulty report · Bearing · Bag JETSTM3101

Difficulty date
December 27, 2002
Submitted
January 21, 2003
Operation
Air carrier
Make and model
Bag JETSTM3101
Aircraft time
20,954 hours
Engine
Garrtt TPE33110UG
Propeller
Rotol R333482F12
Part
Bearing
Condition
Seized
Location
Starter Gen
Component
Starter Gen
Component part number
23079009
Stage of operation
CL
How discovered
O
Nature of condition
E, J
Precautionary procedure
E, H

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

What was found

(CAN) DEPARTURE FROM CYXD WAS NORMAL APART FROM LIGHT VIBRATIONS FROM NR 2 ENGINE. APPROXIMATELY 10 MIN. AFTER DEPARTURE NR 2 GEN INOPERATIVE LIGHT ILLUMINATED. RESET GEN SWITCH, IT DID NOT COME ON LINE, SO IT WAS TURNED OFF. THE VIBRATION GOT WORSE, ERRATIC INDICATIONS ON NR 2 FUEL PRESSURE AND NR 2 HYD PRESSURE. NR 2 ENGINE WAS SHUTDOWN AND FEATHERED AS A PRECAUTION IN THE EVENT THERE MIGHT BE A GEARBOX PROBLEM. PASSENGERS ADVISED, ADVISED ATC TO HAVE EMERGENCY SERVICES STANDBY. REMAINDER OF FLIGHT WAS UNEVENTFUL. MAINTENANCE INSPECTION REVEALED NR 2 STARTER GEN SEIZED DUE TO REAR STARTER GEN BEARING FAILURE. EVIDENCE OF STARTER GEN COOLING FAN RUBBING SHROUD AS BEARING FAILED.