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

Air California

Named as the FAA publishes it on its approvals.

Holds 3 approved modifications, most of them for the Boeing 737. FAA spelling: Air California.

Approved modifications 3 · newest first

1976-08-17SA3197WE · Installation of auxiliary stowage compartment. (737-293) · 737
1976-07-21SA3084WE · Installation of Collins FPC-75 ground proximity warning system computer. · 188C
1976-01-07SA3134WE · Installation of Collins ground proximity warning system. · 737-200 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.