STC ST04556CH
FAA DRS lists ST04556CH as Current · Reissued, held by Citadel Completions LLC, for Boeing 737-600 Series, Boeing 737-700 Series, and Boeing 737-800 Series, and 2 more aircraft configurations. Recorded change: 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. Snapshot dated June 30, 2026.
Recorded modification
What the FAA record covers
ST04556CH 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 737-600 Series, Boeing 737-700 Series, and Boeing 737-800 Series, and 2 more aircraft configurations. Confirm the approved model list, serial effectivity, configuration, and certificate revision.
Buyer checks
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