HAM-STD Service Bulletins

Number of pages: 4Part Number: No. 137Revision Date: 15-Oct-1947Description: Ref 597 - Corrections of Service Bulletin 126, Ref 598 - Supplementary Instructions for Repair of Surface-Treated Blades, Ref 599 - Correction of Ref 571 in Service Bulletin 127

Number of pages: 2Part Number: No. 129Revision Date: 31-July-1947Description: Ref 577 - Fixed Cam Rework, Ref 578 - New Pilot Valve Nut, Ref 579 - Ratings for Steel Blades with Electric De-Icing

Number of pages: 16Part Number: No. 126Revision Date: 15-July-1947

Number of pages: 6Part Number: No. 148Revision Date: 20-April-1948Description: Ref 637 - Repair of Electric Blade Heaters, Ref 638 - Redesigned Head Clamp for Double Acting Governors, Ref 639 - Installation of Electric Blade Heaters, Ref 640 - Rework of...

Number of pages: 2Part Number: No. 146Revision Date: 27-Feb-1948Description: Ref 631 - Correction of Service Bulletin 126, Ref 632 - Copper Plating of Preloading Screws, Ref 633 - New Part Number for Gasket

Number of pages: 2Part Number: No. 135Revision Date: 30-Sept-1947

Number of pages: 2Part Number: No. 127Revision Date: 31-July-1947Description: Ref 570 - Removal of Propellers with Electric De-Icing, Ref 571 - Removal of Second Cut-Out Switch on Double-Acting Governor, Ref 572 - New Relief Valve Spring

Number of pages: 2Part Number: No. 134Revision Date: 30-Sept-1947

Number of pages: 2Part Number: No. 143Revision Date: 20-Feb-1948Description: Ref 621 - Rework for Steel Blade Preload Screw Wrench

Number of pages: 2Part Number: No. 142Revision Date: 10-Feb-1948Description: Ref 618 - Magnetic Inspection of all No. 2 Steel Blade Shanks, Ref 619 - Differential Pressure Cut-Out Switch Electrode

Number of pages: 4Part Number: No. 138Revision Date: 20-Nov-1947Description: Ref 601 - Cementing of Blade Chafing Rings, Ref 602 - Stealing of Stepmotor Electric Heads, Ref 603 Governor Drive Shaft Splined Insert

Number of pages: 2Part Number: No. 149Revision Date: 20-April-1948Description: Ref 642 - Primer Cement for De-Icing Equipment