Service difficulty report · Bearing · Snias AS350B

Difficulty date
October 15, 2001
Submitted
November 8, 2001
Operation
General aviation
Make and model
Snias AS350B
Aircraft time
6,241 hours
Engine
Tmeca ARRIEL1B
Part
Bearing
Part number
62052RSIMT47CR
Condition
Broken
Location
Internal
Component
Hyd Pump Drive A · Aerosp · 350A35013004
Stage of operation
CL
Nature of condition
F, J
Precautionary procedure
A, L

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

What was found

(CAN) DURING TAKEOFF/CLIMB OUT OF A WOODED AREA, THE PILOT GOT A HYDRAULIC LIGHT INDICATION. HE LATER REPORTED THAT THE AIRCRAFT HAD A COMPLETE HYDRAULIC FAILURE. THE CAUSE OF THE FAILURE WAS DUE TO A BEARING FAILURE IN THE HYDRAULIC DIVE PULLEY, THE CAGE OR THE BEARING HAD BROKEN APART CAUSING THE PULLEY ASSEMBLY TO SEIZE AND THE HYDRAULIC BELT TO BREAK. THE AIRCRAFT LANDED WITHOUT FURTHER INCIDENT.