Service difficulty report · Bearing · Snias AS350B2

Difficulty date
September 9, 2004
Submitted
November 9, 2004
Operation
Air carrier
Aircraft
N6302Y
Make and model
Snias AS350B2
Aircraft serial
9007
Engine
Tmeca ARRIEL1D1
Part
Bearing
Condition
Making Metal
Location
Mgb
Part time
2,261 hours
Stage of operation
NR
How discovered
9
Nature of condition
O
Precautionary procedure
O

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

What was found

PILOT REPORTED MGB CHIP LIGHT. INVESTIGATION REVEALED METALIC CHIPS ON THE BEVEL REDUCTION GEAR BOX THAT EXCEEDED SERVICABILITY STANDARDS. REMOVED GEARBOX AND FOUND EPICYCLIC HAS A BAD BEARING WHICH IS THE SOURCE OF THE METAL. SENT EPICYCLIC AND BEVEL GEAR BOX FOR REPAIR OF CYCYLIC AND INSPECTION OF BEVEL GEAR BOX FOR CROSS METAL CONTAMINATION.