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No. of STCs: 2

STC Holder: Wilpac Manufacturing Co 135 North Johnson Ave., El Cajon, CA 92020, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA4-75	Status: Historical	App Date:	Rev Date:
Description: Modified Convair B24 exhaust manifold (Pratt & Whitney R-1830).
TC Nos.: A-669
Models: McDonnell Douglas CorporationDC-3 Series
ACO: Los Angeles ACO Branch, Tel: +1 (562) 627-5200

STC Holder: Wilpac Manufacturing Co 135 North Johnson Ave., El Cajon, CA 92020, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA4-75	Status: Current	App Date:	Rev Date: 01/01/1960
Description: Modified Convair B24 exhaust manifold (Pratt & Whitney R-1830).
TC Nos.: A-669
Models: McDonnell Douglas CorporationDC-3 Series
ACO: AIR-770: West Certification Branch LA