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

Acd Corporation

Holds 2 approved modifications, most of them for the Aeronca S11. FAA spelling: ACD Corporation.

Approved modifications 2 · newest first

1992-02-24SA2687NM · Installation of Truboplus/ Electronics Int'l gauges and switches. · G-164 Series, AT-400, AT-302
1991-08-10SA5176NM · Installation of an ADC Corporation Model 5001A engine pre-oiler system · 337, 337A, 337B

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