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Aircraft STC directory

Boeing 737-900ER Series STCs

The Jun 30, 2026 FAA DRS snapshot contains 235 selected supplemental type certificates with status Current whose public applicability data names the Boeing 737-900ER Series. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.

235
listed Current at snapshot
89
holder directories
9
modification categories
May 19, 2026
latest recorded revision

Modification demand surface

Other aircraft modifications111Cabin and interiors45Aircraft connectivity34Avionics18Aircraft structures10Safety and emergency equipment6Fuel systems5Electrical systems3Cargo and special mission3

Recorded holders

Delta Engineering Corporation15Amphenol Cable and Interconnect Technologies Inc.10Fokker Services B.V.8Astronics Armstrong Aerospace8Delta G Design Inc8ALOFT AeroArchitects7Woven Electronics LLC7Honeywell International Inc6B/E Aerospace Inc - FSI6Anuvu IFC Corporation5Avionics Support Group Inc.5Rockwell Collins Inc5Jet Aviation AG4Aircraft Systems and Manufacturing Inc4Thales Avionics Inc4Armstrong Aerospace4Eirtech Aviation Services Limited4STG Aerospace Ltd4United Airlines3L2 Aviation3

Recently revised 737-900ER 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

View record