Aircraft STC directory
Lockheed Aircraft 188C STCs
The Jun 30, 2026 FAA DRS snapshot contains 15 selected supplemental type certificates with status Current whose public applicability data names the Lockheed Aircraft 188C. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.
Modification demand surface
Recently revised 188C STCs
Showing the 15 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.
Installation of lower cargo compartment smoke detection system provisions.
FAA holder: Ontic Engineering and Manufacturing Inc.
Increase in fuel weight from86,000 pounds to 92,340 pounds.
FAA holder: Aeronautical Engineers Inc
Installation of lap/shoulder belts.
FAA holder: Aeronautical Engineers Inc
Modification to a cargo configuration.
FAA holder: Aeronautical Engineers Inc
Replacement of existing torquemeters.
FAA holder: AVMAR a Michigan Corporation
Installation of cargo door approximately 80 inches high by 144 inches long in left side of fuselage forebody.
FAA holder: Lockheed Martin Aeronautics Company
Installation of cargo doors, cargo floor and other changes. (188A, 188C Aircraft SN 1070 and higher are eligible.).
FAA holder: Lockheed Martin Aeronautics Company
Relocation of cabin window right-side from fuselage station 217-236 to fuselage station 333-352.
FAA holder: Lockheed Martin Aeronautics Company
Installation of opening in fuselage right hand for emergency exit between fuselage station 226 and fuselage station 253.4. Is approved only for its structural, electrical and mechanical provisions and can be incorporated with STC SA707EA and STC SA709EA.
FAA holder: Lockheed Martin Aeronautics Company
Installation of cargo restraint straps.
FAA holder: Airline Container Manufacturing Co Inc
Installation of Honeywell TCAS II.
FAA holder: ACSS (Aviation Communication and Surveillance Syst
Installation of Norton Radome Kit4306CX.
FAA holder: Saint-Gobain Performance Plastics Corp