The U.S. aircraft register, updated daily
Who holds what · as the FAA records the name

Spectrasensors INC

Named as the FAA publishes it on its approvals.

Holds 2 approved modifications, most of them for the Boeing 757. FAA spelling: SpectraSensors Inc.

Approved modifications 2 · newest first

Boeing 757 1Boeing 737 1
2015-07-16ST02273LA · Installation of the Atmospheric Water Vapor Sensing System (WVSS-II) · 737-300 Series, 737-700 Series, 737-800 Series
2009-08-26ST01706LA · B757-200PF Series, Serial No: 23723-23732, 23851, 23852, 25472-25474, 25482-27386, 27390, 27735-27737, 27739,... · 757-200PF Series

Source: FAA Dynamic Regulatory System (type certificate data sheets, supplemental type certificates, parts manufacturer approvals, technical standard order authorisations). An organisation's name is as the FAA spelled it on each record; related spellings are separate pages.