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Old 13th Jun 2021, 00:47
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twinbird
 
Join Date: Mar 2017
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Question Alternate static source

I'm new to Sikorsky S-76D and wondering why alternate air source is not equipped with S76D?
As far as I know the regulations in FAA is as below

AC 29 APPENDIX B. AIRWORTHINESS GUIDANCE FOR ROTORCRAFT INSTRUMENT FLIGHT
(9)IMC Evaluation.
(B) An alternate static source with a means of selecting this source must be provided for single pilot configurations.
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