STC ST00204DE-D
FAA DRS lists ST00204DE-D as Current · Reissued, held by Learjet Inc., for Learjet Learjet 55C, Learjet Learjet 55, and Learjet Learjet 55B, and 1 more aircraft configuration. Recorded change: Installation of a Universal Avionics Systems Corporation UNS-1M Navigation Management System (NMS). Snapshot dated June 30, 2026.
Recorded modification
What the FAA record covers
Installation of a Universal Avionics Systems Corporation UNS-1M Navigation Management System (NMS).
ST00204DE-D 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: Learjet Learjet 55C, Learjet Learjet 55, and Learjet Learjet 55B, and 1 more aircraft configuration. Confirm the approved model list, serial effectivity, configuration, and certificate revision.
Buyer checks
Confirm before sourcing
- 01Does it cover the exact Learjet Learjet 55C and Learjet Learjet 55, and 2 more aircraft configurations 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 Dual Universal Avionics Systems Corporations UNS-1Lw Flight Management System with LPV Approaches.
FAA holder: Sikorsky Aircraft Corporation
Installation of an Avionics Switching Unit.
FAA holder: Sikorsky Aircraft Corporation
Installation of Honeywell OB3000-001 Sentinel Multifunction DIsplay.
FAA holder: Sikorsky Aircraft Corporation
Installation of a Single Universal Avionics Systems Corporation UNS-1Fw Flight Management System with LPV Approach on a Sikorsky S-76C with Honeywell EDZ-756 EFIS.
FAA holder: Sikorsky Aircraft Corporation