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Due to their critical nature, certain tasks in the overhaul process require evaluation by Hartzell to ensure they are being performed correctly. Hartzell inspects and evaluates samples of the processes and operations from propeller repair facilities from around the world. If a repair facility’s sample is found to be acceptable they are added to the sample program approval listing for that operation. We recommend that if you are using a propeller shop that is not a Hartzell Recommended Service Facility (RSF) that you confirm that the shop has appropriate approvals. The following tasks require evaluation and approval by Hartzell:

  •           Cold Compression Rolling
  •           Composite Blade Major Repair
  •           Composite Blade Erosion Shield replacement
  •           Blade Shank Modification
  •           Pitch Change Knob Shot Peen
  •           Shot Peening
  •           Steel Hub Mounting Flange Rework

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Title Full/Partial Date Description Revision
Cold Compression Rolling Full Document Dec. 2,  2015 Listing of approved facilities for cold rolling 94
Composite Blade Major Repair and Erosion Shield Replacement Full Document Dec. 2,  2015 Listing of approved facilities for composite blade O/H 94
MV Blade Shank Modification Full Document Dec. 2,  2015 Listing of approved facilities for MV shank modification 94
Shot Peening Full Document Dec. 2,  2015 Listing of approved facilities for shot peening 94
Pitch Change Knob Shot Peening Full Document Dec. 2,  2015 Listing of approved facilities for shot peening of pitch change knob 94
Steel Hub Mounting Flange Rework Full Document Dec. 2,  2015 Listing of approved facilities for steel hub flange rework 94

 

Hartzell Propeller