STC ST661SO
FAA DRS lists ST661SO as Current · Reissued, held by Saint-Gobain Performance Plastics Corp, for Boeing 707-300, Boeing 707-400 Series, and Boeing 707-300B, and 1 more aircraft configuration. Recorded change: Installation of Radome. Snapshot dated June 30, 2026.
Recorded modification
What the FAA record covers
Installation of Radome.
ST661SO identifies the approval, recorded holder, named aircraft, and modification scope. It does not confirm kit availability, serial-number effectivity, data rights, price, or installation authority.
Applicability
Aircraft named in FAA DRS
Named aircraft: Boeing 707-300, Boeing 707-400 Series, and Boeing 707-300B, and 1 more aircraft configuration. Confirm the approved model list, serial effectivity, configuration, and certificate revision.
Buyer checks
Confirm before sourcing
- 01Does it cover the exact Boeing 707-300 and Boeing 707-400 Series, and 2 more aircraft configurations model, serial range, and configuration?
- 02Which configuration, parts, installation data, limitations, and ICAs apply?
- 03Who can legally supply the design data, kit, instructions, and ICAs?
- 04What parts, labor, conformity, and return-to-service work are excluded?
Related other aircraft modifications STCs
Recore of Hamilton Standard Heat Exchangers 779215-1 and 779215-2 for installation on the SAAB SF340A and 340B in accordance with Honeywell LORI Sealed Drawing List SDL3400-1, Revision B, dated 10 October 2005 or later FAA approved revision.
FAA holder: Honeywell International Inc.
Recore of Hamilton Standard Air Supply Precoolers, Part Numbers 792940-4 and 792940-5, in accordance with the requirements of Honeywell LORI Sealed Drawing List SDL3499-1, Revision B, dated 10 October 2005 or later FAA approved revision.
FAA holder: Honeywell International Inc.
Recore of Normalair-Garrett heat exchanger part number 8534C000.
FAA holder: Honeywell International Inc.
Recore of Normal Air Garrett APU Oil Cooler P/N 8533C000 (Garrett Auxiliary Power Division (GAPD) P/N 3880799-1).
FAA holder: Honeywell International Inc.