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Avionics

STC ST11391DS

FAA DRS lists ST11391DS as Current · Reissued, held by Aircraft Systems and Manufacturing, Inc., for Boeing 737-300 Series, Boeing 737-400 Series, and Boeing 737-500 Series. Recorded change: 5G Tolerant Radio Altimeter System Upgrade. Snapshot dated June 30, 2026.

FAA-listed holder
Aircraft Systems and Manufacturing, Inc.
Aircraft configurations
3
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

5G Tolerant Radio Altimeter System Upgrade.

ST11391DS 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.

Boeing 737-300 SeriesA16WEBoeing 737-400 SeriesA16WEBoeing 737-500 SeriesA16WE

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Boeing 737-300 Series and Boeing 737-400 Series, and 1 more aircraft configuration model, serial range, and configuration?
  2. 02Which part numbers, software versions, interfaces, and manual changes apply?
  3. 03Who can legally supply the design data, kit, instructions, and ICAs?
  4. 04What parts, labor, conformity, and return-to-service work are excluded?

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