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No. of STCs: 4

STC Holder: Frontier Flying Service, Inc 3820 University Ave, Fairbanks, AK 99709, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA02118AK	Status: Historical	App Date:	Rev Date: 06/30/1998
Description: Installation of damage protection plates to the inboard, lower side of the flaps.
TC Nos.: A20SO
Models: The New Piper Aircraft Inc.PA-31, PA-31-300, PA-31-325, PA-31-350
ACO: Anchorage ACO Branch, Tel: +1 (907) 271-2668

STC Holder: Frontier Flying Service, Inc 3820 University Ave, Fairbanks, AK 99709, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA02119AK	Status: Historical	App Date:	Rev Date: 06/10/1999
Description: Installation of damage protection plates to inboard, lower side of flaps.
TC Nos.: A8EA
Models: The New Piper Aircraft Inc.PA-31P, PA-31P-350, PA-31T, PA-31T1, PA-31T2, PA-31T3
ACO: Anchorage ACO Branch, Tel: +1 (907) 271-2668

STC Holder: Frontier Flying Service, Inc 4700 Old International Airport Rd., Anchorage, AK 99502-1020, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA3612NM	Status: Current	App Date: 04/23/1986	Rev Date: 02/04/2020
Description: Installation of SAFT type 2376 nickel-cadmium battery.
TC Nos.: A20SO
Models: The New Piper Aircraft Inc.PA-31-350
ACO: AIR-778: Alaska Aviation Section ANC

STC Holder: Frontier Flying Service, Inc 4700 Old International Airport Rd., Anchorage, AK 99502-1020, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA3642NM	Status: Current	App Date: 10/17/1987	Rev Date: 02/04/2020
Description: Installation of Hartzell HC-E3YR-2ATF/FC8468( )-8Q (left engine) and HC-E3YR-2ALTF/FJC8468( )-8Q (right engine) propeller assemblies. PA-31-350 (T-1020) and PA-31-350 (Chieftain). Serial numbers 31-7405218, 238, 485, 490; 31-7552043, 076; and 31-7652144 are ineligible for this installation.
TC Nos.: A20SO
Models: The New Piper Aircraft Inc.PA-31-350
ACO: AIR-778: Alaska Aviation Section ANC