STC SA21GL
FAA DRS lists SA21GL as Current · Reissued, held by Honeywell International Inc., for Cessna Aircraft 172B, Cessna Aircraft 172M, and Cessna Aircraft 172A, and 27 more aircraft configurations. Recorded change: Installation of Grimes multi-plexed anti-collision light system. Snapshot dated June 30, 2026.
Recorded modification
What the FAA record covers
Installation of Grimes multi-plexed anti-collision light system.
SA21GL 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: Cessna Aircraft 172B, Cessna Aircraft 172M, and Cessna Aircraft 172A, and 27 more aircraft configurations. Confirm the approved model list, serial effectivity, configuration, and certificate revision.
Buyer checks
Confirm before sourcing
- 01Does it cover the exact Cessna Aircraft 172B and Cessna Aircraft 172M, and 28 more aircraft configurations 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?
Related other aircraft modifications STCs
Installation of a Wingspeed Iridium Communication Management System and Dual DAC International Electronic Flights Bags (EFBs).
FAA holder: Avionics Support Group Inc.
Installation of a Ritec Thermal Printer in B767-200/-300 Series Aircraft.
FAA holder: Avionics Support Group Inc.
Installation of Lycoming GO-480-C1D6 engines and Hartzell propellers, HC-83X20-2C/9333-C3 propellers, and associated modifications.
FAA holder: Seaplane Works Inc.