Service difficulty report · Gearbox

Difficulty date
February 11, 2003
Submitted
April 14, 2003
Operation
General aviation
Engine
Pwa PT6A41
Part
Gearbox
Condition
Failed
Location
Accesory
Stage of operation
CR
How discovered
O
Nature of condition
R
Precautionary procedure
E, A

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

What was found

(CAN) ENGINE SUFFERED AN IFSD AND WAS REMOVED AND RETURNED FOR INVESTIGATION. CUSTOMER SUSPECTED AN AGB BALL LOCK FAILURE. ENGINE WAS FOUND TO HAVE SIGNIFICANT DAMAGE INSIDE THE AGB WITH MANY GEARSHAFTS & MUTILATED TEETH & INPUT DRIVE FLANGED BEARING COMPLETELY DESTROYED.