Modification features lower engine RPM charging capabilities, improved system reliability, and sufficient amperage output to assume additional electrical loads that may be imposed on the systems of Models 500B, 500S, 500U.
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105 Improved Propeller Electrical Deicer System
Modification features convenient single-switch control for Models 500A, 500B, 500U, 500S, 560F, 680F, 680F(P), 680FL, 680FL(P), 680T, 680V, 680W AND 681 S/N 871 AND SUBS
97 Improved Heated Stall Warning Switch Install
Modification approved for ?All-Weather? flight conditions with new visual speed control indicator and ?Tellite? switch installations for Models 500A, 500B, 500U, 560F, 680F, 680FL, 680FL(P), 680F(P), 680T.
94 Alternate Static Pressure Source
Provides added safety feature of alternate static source for flight instruments for all prop driven Models except 520, 560, 720.
87A Non-Siphoning Fuel Filler Cap
Easily installed kit, cap interchangeable with present cap. Fuel tank remains sealed even if cap is not secure. Models 500, 500A, 500B, 500S, 500U, 520, 560, 560A, 560E, 560F, 680, 680E, 680F, 680FL, 680FL(P), 680F(P).
