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
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
Related other aircraft modifications STCs
Recore of Normalair-Garrett heat exchanger part number 8534C000.
FAA holder: Honeywell International Inc.