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15 March 1957 NEW YORK AIRWAYS, INC. HELICOPTER LABORATORY - Operations and Maintenance Manuals. - Weight and balance control. - Cockpit instrument presentation.(NYA S-55 and S-58 panels are becoming industry standard. NYA recently asked by SAE to chair Technical Committee for development standardized cockpit and instrument layout.) - Improved fire protection. (Extensive fire prevention modifications developed ) - Winterization kits. - Fuselage structural modification. (Airframe; nose gear attachment; tai; cone reinforcement; baggage compartment.) - Improved gear box design. - Shock mounted ignition harness. - Engine baffle installation. - Improved engine installation and vibration characteristics in S-55 type aircraft. (Example- extensive vibration and acceleration flight and ground stress test were conducted on magnetos; cyclinders; oil stump; crankcase; rear case.) - Development of amphibious landing gear for the S-55s and S-58s. - Development of temperature accountability criteria for S-55 and S-58 type helicopters. Page 3.