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No. of STCs: 4

STC Holder: Cheyenne Tech 555 N Woodlawn, Bldg 5, Suite 100, Wichita, KS 67208, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA01379WI	Status: Historical	App Date: 02/22/2005	Rev Date: 08/16/2007
Description: Installation of Honeywell Dual AM-250 Digital Altimeter & Skylight Air Data Computer ADC-602 AIU and associated equipment into Piper Cheyenne 400LS and Cheyenne IIIA aircraft to obtain Reduced Vertical Separation Minimum approval.
TC Nos.: A23SO
Models: The New Piper Aircraft Inc.PA-42-1000, PA-42-720
ACO: Wichita ACO Branch, Tel: +1 (316) 946-4100

STC Holder: Cheyenne Tech 555 N Woodlawn, Bldg 5, Suite 100, Wichita, KS 67208, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA01379WI	Status: Historical	App Date: 02/22/2005	Rev Date: 03/07/2006
Description: Installation of Honeywell Dual AM-250 Digital Altimeter & Skylight Air Data Computer ADC-602 AIU and associated equipment into Piper Cheyenne 400LS and Cheyenne IIIA aircraft to obtain Reduced Vertical Separation Minimum approval.
TC Nos.: A23SO
Models: The New Piper Aircraft Inc.PA-42-1000, PA-42-720
ACO: Wichita ACO Branch, Tel: +1 (316) 946-4100

STC Holder: Cheyenne Tech 5111 Newbury Way, Columbia, MO 65203-8489		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA01379WI	Status: Current	App Date: 02/22/2005	Rev Date: 10/31/2024
Description: Installation of Dual Digital Altimeters and associated equipment to obtain Reduced Vertical Separation Minimum (RVSM) Airworthiness approval.
TC Nos.: A23SO
Models: Piper Aircraft Inc.PA-42, PA-42-1000, PA-42-720
ACO: AIR-760: Central Certification Branch WI

STC Holder: Cheyenne Tech 555 N Woodlawn, Bldg 5, Suite 100, Wichita, KS 67208, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA01379WI	Status: Historical	App Date: 02/22/2005	Rev Date: 09/07/2011
Description: Installation of Honeywell Dual AM-250 Digital Altimeter & Skylight Air Data Computer ADC-602 AIU and associated equipment into Piper Cheyenne 400LS and Cheyenne IIIA aircraft to obtain Reduced Vertical Separation Minimum approval.
TC Nos.: A23SO
Models: Piper Aircraft Inc.PA-42, PA-42-1000, PA-42-720
ACO: AIR-760: Central Certification Branch WI