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

Aviation Specialties INC

Named as the FAA publishes it on its approvals.

Holds 2 approved modifications, most of them for the Sikorsky S-55. FAA spelling: Aviation Specialties Inc.

Approved modifications 2 · newest first

1971-06-25SH125WE · Installation of AiResearch TSE-331-3U-303N engine and related changes. (Limited to serial number 55607). · S-55B
1970-06-25SA2178WE · Installation of liquid spray system. · CL-215-1A10

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.