STC ST04173CH
FAA DRS lists ST04173CH as Current · Issued, held by Astronics Armstrong Aerospace, for Boeing 757-200 Series. Recorded change: Installation of an Inflight Warning Systems Weather Radar Vibration Monitoring Unit System. Snapshot dated June 30, 2026.
FAA-listed holder
Aircraft configurations
1
FAA revision date
FAA status
Current · Issued
Recorded modification
What the FAA record covers
ST04173CH 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 757-200 Series. Confirm the approved model list, serial effectivity, configuration, and certificate revision.
Buyer checks
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