STC SA5123NM
FAA DRS lists SA5123NM as Current · Reissued, held by Honeywell International Inc, for Textron Aviation C90. Recorded change: Installation of an AV557C cockpit voice recorder. Snapshot dated June 30, 2026.
Recorded modification
What the FAA record covers
Installation of an AV557C cockpit voice recorder.
SA5123NM 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: Textron Aviation C90. Confirm the approved model list, serial effectivity, configuration, and certificate revision.
Buyer checks
Confirm before sourcing
- 01Does it cover the exact Textron Aviation C90 model, serial range, and configuration?
- 02Which configuration, parts, installation data, limitations, and ICAs apply?
- 03Who can legally supply the design data, kit, instructions, and ICAs?
- 04What parts, labor, conformity, and return-to-service work are excluded?
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Installation of Envirovac toilets P/N's 7900143 and 7900144.
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Installation of Envirovac Vacuum Waste Blowers listed on Envirovac, Inc. Drawing 7900140, Revision B, dated October 15, 1997.
FAA holder: Monogram Systems
Replace Teledyne Digital Flight Data Acquisition Unit (DFDAU) P/N 2227000-1 with Teledyne DFDAU P/N 2233000-816.
FAA holder: Airborne Maintenance & Engineering Services (AMES)