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No. of STCs: 3

STC Holder: Luton A M 3025 Eldridge Avenue, Bellingham, WA 98225, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA3777NM	Status: Historical	App Date:	Rev Date: 08/09/1996
Description: Installation of Pratt and Whitney PT6A-135 engine, Hartzell HC-B3TN-3C/T10282 constant speed propeller and other associated changes. (OTTER DHC-3 (U-1A) normal category landplane only)
TC Nos.: A-815
Models: Bombardier-Rotax GmbHOtter DHC-3 (U-1A)
ACO: Seattle ACO Branch, Tel: +1 (206) 231-3500

STC Holder: Luton A M 3025 Eldridge Avenue, Bellingham, WA 98225, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA4375NM	Status: Current	App Date: 08/29/1988	Rev Date: 06/20/1994
Description: Installation of EDO Model 7490 Amphibious Floats and EDO Model 7170 Seaplane Floats. (OTTER DHC-3 (U-1A) normal category as modified by STC SA3777NM)
TC Nos.: A-815
Models: Bombardier-Rotax GmbHOtter DHC-3 (U-1A)
ACO: AIR-770: West Certification Branch SEA

STC Holder: Luton A M 3025 Eldridge Avenue, Bellingham, WA 98225, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA4375NM	Status: Historical	App Date:	Rev Date: 10/04/1991
Description: Installation of EDO Model 7490 Amphibious Floats and EDO Model 7170 Seaplane Floats. (OTTER DHC-3 (U-1A) normal category as modified by STC SA3777NM)
TC Nos.: A-815
Models: Bombardier-Rotax GmbHOtter DHC-3 (U-1A)
ACO: Seattle ACO Branch, Tel: +1 (206) 231-3500