STC ST04373AT
FAA DRS lists ST04373AT as Current · Issued, held by Concorde Battery Corporation, for Boeing 737-300 Series, Boeing 737-400 Series, and Boeing 737-500 Series. Recorded change: This STC is a replacement of the original equipment nickel cadmium main batteries manufactured by Saft or Marathon with Concorde valve regulated lead acid main batteries. Snapshot dated June 30, 2026.
Recorded modification
What the FAA record covers
ST04373AT 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 737-300 Series, Boeing 737-400 Series, and Boeing 737-500 Series. Confirm the approved model list, serial effectivity, configuration, and certificate revision.
Buyer checks
Confirm before sourcing
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