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Other aircraft modifications

STC ST02273LA

FAA DRS lists ST02273LA as Current · Amended, held by SpectraSensors Inc, for Boeing 737-300 Series, Boeing 737-700 Series, and Boeing 737-800 Series. Recorded change: Installation of the Atmospheric Water Vapor Sensing System (WVSS-II). Snapshot dated June 30, 2026.

FAA-listed holder
SpectraSensors Inc
Aircraft configurations
3
FAA revision date
FAA status
Current · Amended

Recorded modification

What the FAA record covers

Installation of the Atmospheric Water Vapor Sensing System (WVSS-II).

ST02273LA 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 737-700 Series, and Boeing 737-800 Series. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Boeing 737-300 Series and Boeing 737-700 Series, and 1 more aircraft configuration model, serial range, and configuration?
  2. 02Which configuration, parts, installation data, limitations, and ICAs 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?