STC ST01904CH
FAA DRS lists ST01904CH as Current · Amended, held by Royal Air Inc, for Learjet 24, Learjet 24A, and Learjet 24B, and 15 more aircraft configurations. Recorded change: Installation of IS&S Air Data Display Units 9D-80130-15, Analog Interface Unit 9B-81040-30, and Rosemount model 0856NA pitot-static probes. Limited to Learjet 24 models with MKII wings, 300 kts Vmo airspeed limitation, and JET FC-110 autopilot. Excludes serial numbers 25-337, 25-352, 25-361, and 25-370 through 25-372. Snapshot dated June 30, 2026.
Recorded modification
What the FAA record covers
ST01904CH 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 24, Learjet 24A, and Learjet 24B, and 15 more aircraft configurations. Confirm the approved model list, serial effectivity, configuration, and certificate revision.
Related avionics STCs
Replacement of three (3) Inertial Navigation Units (INUs) P/N 463001-6110-0412 (software P/N 92-04-12).
FAA holder: Northrop Grumman Systems Corporation
Installation of Litton Triple LTN-92 Inertial Navigation Systems (INS) and Dual LTN-2001 Global Positioning Sensors (GPS).
FAA holder: Northrop Grumman Systems Corporation
Installation of Litton Triple LTN-92 Inertial Navigation Systems (INS) and dual LTN-2001 Global Positioning Sensors (GPS).
FAA holder: Northrop Grumman Systems Corporation
Installation of Litton Dual LTN-410 Flight Management Systems (FMS) with embedded Global Positioning Sensors (GPS) receivers.
FAA holder: Northrop Grumman Systems Corporation
FAA record reference
- STC number
- ST01904CH
- Product
- Aircraft · Large Multi-Engine
- Country
- United States
- Application date
- November 1, 2002
- Revision date
- August 15, 2005
- CFR references
- Part 21, Part 25