STC ST04685NY

FAA DRS lists ST04685NY as Current · Issued, held by Lufthansa Technik AG, for Boeing 747-400 Series. Recorded change: Installation of Riblets Film on Lower Fuselage. Snapshot dated June 30, 2026.

FAA-listed holder

Lufthansa Technik AG

Aircraft configurations

FAA revision date

December 9, 2021

FAA status

Current · Issued

Recorded modification

What the FAA record covers

ST04685NY 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 747-400 Series. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Boeing 747-400 SeriesA20WE

SA1650CEAircraft structuresRevised Sep 28, 2011

Installation of either the Tail Safe support angles or a Stub Spar at the 3% chord station on the root rib of the horizontal stabilizer per Smith Speed Conversions Drawing List No. 1006 with an FAA approved date of May 8, 1981, or later.

FAA holder: D'Shannon Products Ltd.

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ST00734DEAircraft structuresRevised Sep 28, 2011

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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ST03004NYAircraft structuresRevised Aug 18, 2011

Installation of new MIL-C-5015 connectors at the wing to fuselage interface must be in accordance with Kelowna Flightcraft Ltd.Master Drawing List K116-00002 Revision NC, dated March 20, 2009 or later Transport Canada approved revision.

FAA holder: Kelowna Flightcraft Ltd

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SA930SOAircraft structuresRevised Aug 16, 2011

Installation of Beech Aircraft wing tip assemblies in accordance with Beryl D Shannon Aviation Specialties, Inc., Drawing B1990, dated December 15, 1976, or later FAA approved revision.

FAA holder: D'Shannon Products Ltd.

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FAA record reference

STC number: ST04685NY
Product: Aircraft · Large Airplane
Country: Germany
Application date: October 21, 2021
Revision date: December 9, 2021
CFR references: Part 21, Part 25

What the FAA record covers

Aircraft named in FAA DRS

Related aircraft structures STCs

Installation of either the Tail Safe support angles or a Stub Spar at the 3% chord station on the root rib of the horizontal stabilizer per Smith Speed Conversions Drawing List No. 1006 with an FAA approved date of May 8, 1981, or later.

Installation of new MIL-C-5015 connectors at the wing to fuselage interface must be in accordance with Kelowna Flightcraft Ltd.Master Drawing List K116-00002 Revision NC, dated March 20, 2009 or later Transport Canada approved revision.

Installation of Beech Aircraft wing tip assemblies in accordance with Beryl D Shannon Aviation Specialties, Inc., Drawing B1990, dated December 15, 1976, or later FAA approved revision.

FAA record reference