STC SA1553NM
FAA DRS lists SA1553NM as Current · Reissued, held by Avcon Industries Inc, for Learjet Learjet 55C, Learjet Learjet 55B, and Learjet Learjet 55. Recorded change: Installation of one or two 90 US gallons fuselage auxiliary fuel tank(s), in accordance with Branson List of Drawings and Documents, No. 61A000, Revision B, FAA approved May 16, 1983, or later FAA approved revision. Snapshot dated June 30, 2026.
Recorded modification
What the FAA record covers
SA1553NM 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: Learjet Learjet 55C, Learjet Learjet 55B, and Learjet Learjet 55. Confirm the approved model list, serial effectivity, configuration, and certificate revision.
Buyer checks
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Related fuel systems STCs
Modify the wing fuel tanks access cover installation by replacing the existing rubstrip and seal with a new encapsulated wire mesh gasket and a new seal.
FAA holder: Aviation Devices & Electronic Components LLC
Modify the wing fuel tanks access cover installation by replacing the existing rubstrip and seal with a new encapsulated wire mesh gasket and a new seal.
FAA holder: Aviation Devices & Electronic Components LLC