STC SA4781SW
FAA DRS lists SA4781SW as Current · Reissued, held by Textron Aviation Inc, for Bombardier CL-600-1A11 (CL-600) and Bombardier CL-600-2A12 (CL-601). Recorded change: Installation of Dual Collins ALT-55B Radio Altimeter System. Snapshot dated June 30, 2026.
Recorded modification
What the FAA record covers
Installation of Dual Collins ALT-55B Radio Altimeter System.
SA4781SW 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: Bombardier CL-600-1A11 (CL-600) and Bombardier CL-600-2A12 (CL-601). Confirm the approved model list, serial effectivity, configuration, and certificate revision.
Buyer checks
Confirm before sourcing
- 01Does it cover the exact Bombardier CL-600-1A11 (CL-600) and Bombardier CL-600-2A12 (CL-601) model, serial range, and configuration?
- 02Which part numbers, software versions, interfaces, and manual changes apply?
- 03Who can legally supply the design data, kit, instructions, and ICAs?
- 04What parts, labor, conformity, and return-to-service work are excluded?
Related avionics STCs
Installation of a third AC Electronics Carousel IV Inertial Navigation System in accordance with FAA Approved Appendix "A" of United Air Lines Report F-1499 and FAA Approved United Air Lines Airplane Flight Manual Supplement dated December 31, 1970.
FAA holder: United Airlines Inc
Installation of Collins Radio Company INS - 61B inertial navigation system.
FAA holder: United Airlines Inc
Rework of Inertial Navigation System to install a dual Model LTN72R INS System.
FAA holder: United Airlines Inc
Replacement of the No. 1 transponder system with a Mode S/ATCRBS transponder system certified for ATCRBS Mode C use, in accordance with United Air Lines, DAS-1-WE, Approved Drawing List No. 2718 dated January 23, 1987, or later FAA approved revisions.
FAA holder: United Airlines Inc