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No. of STCs: 3

STC Holder: Celesco Industries 7800 Dearing, Canoga Park, CA 91304, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA1138WE	Status: Current	App Date:	Rev Date: 06/08/1973
Description: Installation of fire warning monitoring circuit in engine fire detection system. (707-227, 720-027)
TC Nos.: 4A21, 4A28
Models: The Boeing Company707, 720
ACO: AIR-770: West Certification Branch LA

STC Holder: Celesco Industries 7800 Dearing, Canoga Park, CA 91304, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA1551WE	Status: Current	App Date:	Rev Date: 06/08/1973
Description: Installation of fire warning moni- toring circuit in engine fire detection system. (707-331)
TC Nos.: 4A26
Models: The Boeing Company707
ACO: AIR-770: West Certification Branch LA

STC Holder: Celesco Industries 7800 Dearing, Canoga Park, CA 91304, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA1555WE	Status: Current	App Date:	Rev Date: 06/08/1973
Description: Installation of fire warning elec- trical monitoring circuit in engine fire detection system. (707-321)
TC Nos.: 4A26
Models: The Boeing Company707
ACO: AIR-770: West Certification Branch LA