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Aircraft STC directory

Boeing 737-900 Series STCs

The Jun 30, 2026 FAA DRS snapshot contains 292 selected supplemental type certificates with status Current whose public applicability data names the Boeing 737-900 Series. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.

292
listed Current at snapshot
108
holder directories
10
modification categories
Jun 10, 2026
latest recorded revision

Modification demand surface

Other aircraft modifications144Cabin and interiors44Aircraft connectivity33Avionics29Aircraft structures16Safety and emergency equipment10Cargo and special mission6Electrical systems5Fuel systems4Engine and powerplant1

Recorded holders

Rockwell Collins Inc14Amphenol Cable and Interconnect Technologies Inc.13Woven Electronics LLC12Honeywell International Inc11Delta Engineering Corporation9Fokker Services B.V.8Anuvu IFC Corporation6Avionics Support Group Inc.6Delta G Design Inc6ALOFT AeroArchitects5Thales Avionics Inc5Rosemount Aerospace Inc5Jet Aviation AG4Aircraft Systems and Manufacturing Inc4Safran Cabin Inc.4Armstrong Aerospace4Astronics Armstrong Aerospace4Eirtech Aviation Services Limited4Magee Plastics Company4STG Aerospace Ltd4

Recently revised 737-900 Series STCs

Showing the 100 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.

ST04556CHSafety and emergency equipment

Installation of a Crew Oxygen Shutoff Valve in accordance with Citadel Completions. LLC. Master Data List 7097-MDL-002, Revision (E), dated 27 JAN 2022, or later FAA Approved Revision.\nFAA Approved Aircraft Flight Manual Supplement document number 7097-AFMS-002 Revision (A),\n<hued 14 JAN 2022, or later FAA appioved revision is a required part of this modification.\nThe aircraft must be maintained in accordance with FAA approved Instructions for Continued Aiiworthiness, 7097-ICAS-002 Revision {IR) dared I I JAN 2022, or later' FAA approved revision in addition to the basic airplane maintenance manuals.

FAA holder: Citadel Completions LLC

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