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No. of STCs: 4

STC Holder: Dow Aero LLC 6800 Camille Avenue, Oklahoma City, OK 73149		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA1097NW	Status: Current	App Date: 12/01/1980	Rev Date: 03/13/2025
Description: Installation of Winters AirStair at the aft passenger entrance.
TC Nos.: A16WE
Models: The Boeing Company737-200 Series
ACO: AIR-760: Central Certification Branch FTW

STC Holder: Dow Aero LLC 6800 Camille Avenue, Oklahoma City, OK 73149		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA5490NM	Status: Current	App Date: 07/11/1991	Rev Date: 03/13/2025
Description: Installation of World Auxiliary Power Co. (WAPCO) mid passenger doorway airstair and FWD (L1) passenger doorway airstair, AFT stowage configuration.
TC Nos.: A2NM
Models: The Boeing Company757-200 Series
ACO: AIR-760: Central Certification Branch FTW

STC Holder: Dow Aero LLC 6800 Camille Avenue, Oklahoma City, OK 73149		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA8000NM	Status: Current	App Date: 01/31/1991	Rev Date: 02/05/2015
Description: Installation of World Auxiliary Power Company (WAPCO) lower forward cargo door airstair
TC Nos.: A20WE
Models: The Boeing Company747-200B Series, 747-200C Series, 747-200F Series
ACO: AIR-760: Central Certification Branch FTW

STC Holder: Dow Aero LLC 6800 Camille Avenue, Oklahoma City, OK 73149		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST01940LA	Status: Current	App Date: 06/30/2005	Rev Date: 03/13/2025
Description: Installation of Airstair
TC Nos.: A1NM
Models: The Boeing Company767-200 Series
ACO: AIR-760: Central Certification Branch FTW