HAM-STD Service Bulletins

Number of pages: 2Part Number: No. 178Revision Date: 1-Sept-1949Description: Ref 753 - Stepmotor Shaft and Rotor Voids, Ref 754 - Relocating Stop Pin Retaining Hole, Ref 755 - Electric De-Icer Insulating Plates, Ref 756 - Continuous use of Solenoid Valve

Number of pages: 2Part Number: No. 181Revision Date: 15-Dec-1949

Number of pages: 2Part Number: No. 199Revision Date: 26-Oct-1950Description: Ref 823 - New Blade Filler, Ref 824 - De-Icing Brush, Ref 825 - Rough Slip Rings

Number of pages: 2Part Number: No. 197Revision Date: 26-Oct-1950Description: Ref 815 - Service Publications

Number of pages: 4Part Number: No. 191Revision Date: 1-May-1950Description: Ref 801 - 2B20 Propeller Leakage, Ref 802 - Stud Locking Method

Number of pages: 2Part Number: No. 189Revision Date: 20-Mar-1950Description: Ref 798 - Feathering Switch Inspection and Modification

Number of pages: 2Part Number: No. 183Revision Date: 27-Dec-1949Description: Ref 772 - Lock Wire Dimensional Chance, Ref 773 - Motor Test Voltage, Ref 774 - De-Icing Assembly Modification

Number of pages: 6Part Number: No. 193Revision Date: 13-July-1950Description: Ref 805 - Brush Plating of Steel Blades

Number of pages: 4Part Number: No. 195Revision Date: 3-Aug-1950

Number of pages: 2Part Number: No. 198Revision Date: 26-Oct-1950Description: Ref 817 - Surface Treaded Blades - Ref 818 - Control Switch Rework, Ref 819 - Spring Seat Locking Method, Ref 820 - Blade Conversion, Ref 821 - Lock Segment Hole

Number of pages: 2Part Number: No. 192Revision Date: 1-May-1950

Number of pages: 2Part Number: No. 162Revision Date: 10-Dec-1948Description: Ref 695 - Shims for Surface Treated Blades, Ref 696 - Ground Testing of Electric De-Icing Systems