STC ST11858AT
FAA DRS lists ST11858AT as Current · Issued, held by Avionics Support Group, for Boeing 737-300 Series, Boeing 737-400 Series, and Boeing 737-500 Series. Recorded change: Installation of a dual FreeFlight Systems RA-6500 Radio Altimeter System. Snapshot dated June 30, 2026.
Recorded modification
What the FAA record covers
Installation of a dual FreeFlight Systems RA-6500 Radio Altimeter System.
ST11858AT 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: Boeing 737-300 Series, Boeing 737-400 Series, and Boeing 737-500 Series. Confirm the approved model list, serial effectivity, configuration, and certificate revision.
Buyer checks
Confirm before sourcing
- 01Does it cover the exact Boeing 737-300 Series and Boeing 737-400 Series, and 1 more aircraft configuration 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 Teledyne Avionics Power Analyzer and Recorder (PAR). P/N SL17048 is used in the Model AS355F1, P/N SL17039 in the Model AS355F1 and P/N SL17059 in AS355F2 helicopters incorporating Allison 250-C20R engines under STC SH7962SW-D.
FAA holder: Aerosonic Corporation
Installation of a Avionics Specialities, Inc Power Analyzer and Recorder (PAR) P/N SL17080.
FAA holder: Aerosonic Corporation
Installation of a Avionics Specialties, Inc. Power Analyzer and Recorder (PAR) Part No. SL17005.
FAA holder: Aerosonic Corporation
ONE-ONLY: Bell Model 206L-3, Serial Number 51051. Installation of Avionics Specialties Usage monitoring system.
FAA holder: Aerosonic Corporation