STC SA3539WE
FAA DRS lists SA3539WE as Current · Reissued, held by Northrop Grumman Systems Corporation, for Boeing 707-300 Series, Boeing 707-300B Series, and Boeing 707-300C Series. Recorded change: Installation of single, palletized Litton LTN-51 or LTN-72 Inertial Navigation System (707-320C Series). Snapshot dated June 30, 2026.
Recorded modification
What the FAA record covers
SA3539WE 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 Series, Boeing 707-300B Series, and Boeing 707-300C Series. Confirm the approved model list, serial effectivity, configuration, and certificate revision.
Buyer checks
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