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: 5

STC Holder: Web Thomas Aircraft Sales P.O. Box 575, Addison, TX 75001, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA4-216	Status: Current	App Date:	Rev Date: 11/01/1975
Description: Picture window.
TC Nos.: A-723
Models: Lockheed Aircraft CorporationLockheed 18
ACO: AIR-760: Central Certification Branch FTW

STC Holder: Web Thomas Aircraft Sales P.O. Box 575, Addison, TX 75001, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA4-217	Status: Current	App Date:	Rev Date: 11/01/1975
Description: Main cabin floor structure.
TC Nos.: A-723
Models: Lockheed Aircraft CorporationLockheed 18
ACO: AIR-760: Central Certification Branch FTW

STC Holder: Web Thomas Aircraft Sales P.O. Box 575, Addison, TX 75001, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA4-397	Status: Current	App Date:	Rev Date: 11/01/1975
Description: Structural installation of flight line 24 P-001 seat.
TC Nos.: A-723
Models: Lockheed Aircraft CorporationLockheed 18
ACO: AIR-760: Central Certification Branch FTW

STC Holder: Web Thomas Aircraft Sales P.O. Box 575, Addison, TX 75001, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA4-69	Status: Current	App Date:	Rev Date: 11/01/1975
Description: Lockheed Model 18 modified to Learstar Mark II configuration.
TC Nos.: A-723
Models: Lockheed Aircraft CorporationLockheed 18
ACO: AIR-760: Central Certification Branch FTW

STC Holder: Web Thomas Aircraft Sales P.O. Box 575, Addison, TX 75001, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA4-72	Status: Current	App Date:	Rev Date: 11/01/1975
Description: Radar nose for Bendix C-Band, Bendix X-Band, or RCA C-Band.
TC Nos.: A-723
Models: Lockheed Aircraft CorporationLockheed 18
ACO: AIR-760: Central Certification Branch FTW