The STC search system is a complimentary service provided to the aviation community. We hope you find it useful. We do not provide access to STC engineering. For that you need to contact the STC holder directly. Our primary product is a comprehensive library of aviation regulations and standards, including tools for generating Airworthiness Directive compliance reports.

No. of STCs: 4

STC Holder: Wasmuth Company 7331 Varna Building 10, N. Hollywood, CA 91603, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SE4-944	Status: Current	App Date:	Rev Date: 01/01/1960
Description: Modification of Pratt & Whitney18394 pinion assembly to the equivalent of Pratt & Whitney57612 designated as Wasmuth W-1.
TC Nos.: 5E-5
Models: Pratt & Whitney DivisionR-2000 Series
ACO: AIR-770: West Certification Branch LA

STC Holder: Wasmuth Company 7331 Varna Building 10, N. Hollywood, CA 91603, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SE4-944	Status: Historical	App Date:	Rev Date:
Description: Modification of Pratt & Whitney18394 pinion assembly to the equivalent of Pratt & Whitney57612 designated as Wasmuth W-1.
TC Nos.: 5E-5
Models: Pratt & Whitney DivisionR-2000 Series
ACO: Los Angeles ACO Branch, Tel: +1 (562) 627-5200

STC Holder: Wasmuth Company 7331 Varna Building 10, N. Hollywood, CA 91603, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SEW-6	Status: Historical	App Date:	Rev Date:
Description: Modification of Pratt & Whitney47669 and 96669 gear assemblies to the equivalent of Pratt & Whitney 88738 designates as Wasmuth W-2.
TC Nos.: 5E-5
Models: Pratt & Whitney DivisionR-2000 Series
ACO: Los Angeles ACO Branch, Tel: +1 (562) 627-5200

STC Holder: Wasmuth Company 7331 Varna Building 10, N. Hollywood, CA 91603, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SEW-6	Status: Current	App Date:	Rev Date: 01/01/1960
Description: Modification of Pratt & Whitney 47669 and 96669 gear assemblies to the equivalent of Pratt & Whitney 88738 designates as Wasmuth W-2.
TC Nos.: 5E-5
Models: Pratt & Whitney DivisionR-2000 Series
ACO: AIR-770: West Certification Branch LA