New Hartzell Service Letters

Hartzell Propeller Inc. released 3 new Service Letters on Friday, Oct. 9.  A brief explanation of these service letters follows.

HC-SL-61-265 Rev. 2

This is a revision of a previous service letter regarding smooth forged hubs, the changes are of little significance to the propeller owner.

HC-SL-30-279 Rev. 1

Another revised service letter, this one indicates that Hartzell has added more deice boots to their list of deice boots that they manufacture.

HC-SL-30-295

This is a new service letter affecting 4 blade propellers installed on Pilatus PC-12 aircraft.  The service letter indicates that Hartzell has received reports of failures of the deice wire harnesses on these propellers.  This service letter gives the procedures to replace the deice components to eliminate these failures.