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Evaluated 16 candidate ADs: 16 confirmed, 0 possible, 0 excluded.
Airworthiness Directives; Siam Hiller Holdings, Inc. Model UH-12, UH-12A, UH-12B, UH-12C, UH-12D, UH-12E, UH-12E-L, UH-12L, and UH-12L4 Helicopters
Effective: Jan 10, 2001
Airworthiness Directives; ROGERSON HILLER CORPORATION (HILLER, FAIRCHILD HILLER) Model UH-12E, UH-12E-L, UH-12L, and UH-12L4 Series Helicopters
Effective: Mar 7, 1991
Airworthiness Directives; HILLER AVIATION Models UH-12D, UH-12E, UH12E 4 Place, OH-23G and H-23F, Series Helicopters
Effective: Dec 29, 1983
Airworthiness Directives; HILLER AVIATION Model UH-12E, UH-12L, OH-23F and G Series Helicopters
Effective: Oct 15, 1982
Airworthiness Directives; HILLER AVIATION Model UH-12E and UH-12L Series Helicopters
Effective: Sep 13, 1982
Airworthiness Directives; HILLER AVIATION Model UH-12D, UH- 12E, UH-12E4, UH-12E-L, UH-12L and UH-12L4 Series Helicopters
Effective: Jul 16, 1982
Airworthiness Directives; HILLER AVIATION Model UH-12 Series Helicopters
Effective: Sep 10, 1981
Airworthiness Directives; HILLER AIRCRAFT Model UH-12 Series Helicopters
Effective: Aug 24, 1981
Airworthiness Directives; HILLER AIRCRAFT Models UH-12D, UH-12E, OH-23G, UH-12L Helicopters
Effective: Feb 9, 1981
Airworthiness Directives; Hiller Models UH-12C, UH-12D, UH-12E, UH-12L, UH-12E-L, and UH-12L4 Helicopters
Effective: Jan 6, 1978
Airworthiness Directives; Hiller Models UH-12D, UH-12E, UH-12E-L, UH-12L, and UH-12L4 Helicopters
Effective: May 8, 1975
Airworthiness Directives: Fairchild Hiller Models UH-12L, UH-12L4 and UH-12E-L Helicopters
Effective: Oct 19, 1972
Airworthiness Directives; Fairchild Hiller Model UH-12 Helicopters
Effective: Dec 14, 1971
Airworthiness Directives; Fairchild Hiller Models UH-12D, UH-12E, UH-12E-L, UH-12L and UH-12L4 Helicopters
Effective: Apr 30, 1970
Airworthiness Directives; Fairchild-Hiller Models UH-12D, UH-12E, UH-12E-L, UH-12L and UH-12L4 Helicopters
Effective: Apr 23, 1969
Airworthiness Directives; Hiller Models UH-12D, UH-12E, UH-12E-L, UH-12L, and UH-12L4 Helicopters
Effective: Sep 2, 1966
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