Following reported issues with some of the new double row ball bearings, installed on the
Hydraulic Pump Drive Pulley – post Mod. 07 9566, Eurocopter France has
issued EASB 05-00-72. This EASB requires multiple inspections of the Drive
Pulley Bearing at 165 Hours and every 25 Hours afterwards, on aircraft with
Single Hydraulic Systems. The intention of the initial 165 Hour interval is to
carry out the examination during a 150 Hour Inspection and still maintain a 10%
margin for operational convenience.
The 25 Hour inspection interval can create additional maintenance for operators.
To reduce this burden, ECL will be offering an exchange program that will replace
the bearing so aircraft can go an additional 165 hours . As the aircraft
approaches its next 150 Hour inspection, simply fill out a warranty form
referencing the EASB and the standard aircraft information and contact
your CSR with your delivery time-frame. The CSR will respond with an
RMA number for tracking purposes and ECL will send an exchange
Hydraulic Drive Pulley Assembly P/N 350A35-0132-00 with a new bearing.
This bearing will be free of charge.
We ask that the removed Drive Pulley Assembly be returned as soon as possible in
order to keep a ready supply of exchange units on-hand. We at ECL hope that this exchange
program will lessen any inconvenience incurred by this EASB. The exchange program will continue until a permanent solution for the double row bearing is in
place.
