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No. of STCs: 6

STC Holder: Twin Commander Aircraft LLC 1176 Telecom Drive, Creedmoor, NC 27522, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA01762SE	Status: Current	App Date: 12/01/2006	Rev Date: 07/24/2014
Description: Fabrication and Installation of Fuel Quantity Indication System.
TC Nos.: 2A4
Models: Twin Commander Aircraft LLC690, 690A, 690B
ACO: AIR-770: West Certification Branch SEA

STC Holder: Twin Commander Aircraft LLC 1176 Telecom Drive, Creedmoor, NC 27522, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA09247AC	Status: Current	App Date: 08/14/1996	Rev Date: 07/24/2014
Description: Replace the engine exhaust ejector assembly, P/N 260042-55 LH & P/N 260042-56 RH, with a heavier gauge ejector which has a modified fairing.
TC Nos.: 2A4
Models: Twin Commander Aircraft LLC690, 690A, 690B
ACO: AIR-770: West Certification Branch SEA

STC Holder: Twin Commander Aircraft LLC 1176 Telecom Drive, Creedmoor, NC 27522, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA236CH	Status: Current	App Date: 10/28/1993	Rev Date: 07/24/2014
Description: Installation of Allied Signal, Inc., (Garrett) TPE331-10T series engines (-512K, -515K, or -516K in the 690A and 690B; -511K or -513K in the 690C and 690D) and related changes.
TC Nos.: 2A4
Models: Twin Commander Aircraft LLC690A, 690B, 690C, 690D
ACO: AIR-770: West Certification Branch SEA

STC Holder: Twin Commander Aircraft LLC 1176 Telecom Drive, Creedmoor, NC 27522, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA260SW	Status: Current	App Date: 06/05/1963	Rev Date: 07/24/2014
Description: Installation of a Protective Device in the ground side of the Battery and External Power relays
TC Nos.: 2A4, 6A1
Models: Twin Commander Aircraft LLC500, 500-A, 500-B, 520, 560, 560-A, 560-E, 560-F, 680, 680-E, 680-F, 680-FL, 720
ACO: AIR-770: West Certification Branch SEA

STC Holder: Twin Commander Aircraft LLC 1176 Telecom Drive, Creedmoor, NC 27522, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA546GL	Status: Current	App Date: 06/29/1981	Rev Date: 07/24/2014
Description: Installation of Hartzell Model HC-B3TN-5FL/LT10673 or LT10673B propellers.
TC Nos.: 2A4
Models: Twin Commander Aircraft LLC690, 690A, 690B
ACO: AIR-770: West Certification Branch SEA

STC Holder: Twin Commander Aircraft LLC 1176 Telecom Drive, Creedmoor, NC 27522, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA710SW	Status: Current	App Date: 02/16/1966	Rev Date: 07/24/2014
Description: Installation of United Aircraft of Canada Limited PT6A-20 engine.
TC Nos.: 2A4
Models: Twin Commander Aircraft LLC680-T
ACO: AIR-770: West Certification Branch SEA