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Aircraft structures

STC ST01444LA

FAA DRS lists ST01444LA as Current · Reissued, held by Quiet Wing Technologies, Inc., for Boeing 727-100 Series and Boeing 727-200 Series. Recorded change: : Installation of reinforced cockpit door in accordance with FAA Approved Duganair Technologies, Inc. MDL QS-00003, Revision J, dated April 1, 2003, or FAA approved revision (for 727-200 series airplanes) or MDL QS-00003, Revision L, dated July 21, 2003, or later FAA approved revision for both 727-100 and -200 series airplanes). Snapshot dated June 30, 2026.

FAA-listed holder
Quiet Wing Technologies, Inc.
Aircraft configurations
2
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

ST01444LA 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 727-100 Series and Boeing 727-200 Series. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Boeing 727-100 SeriesA3WEBoeing 727-200 SeriesA3WE

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Related aircraft structures STCs

ST00734DEAircraft structures

Installation of three (3) fuselage optical window assemblies to support atmospheric research and meteorological observations in accordance with National Center for Atmospheric Research Optical Window Project Drawing List DL-100-09, Revision A, dated May 26, 2010 or later FAA approved revision. This installation is complemented by STC No. ST03056AT that provides the fuselage view port locations for the optical window assemblies.

FAA holder: National Science Foundation

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