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

Mitsubishi Heavy Ind LTD

Holds 4 approved modifications. FAA spelling: Mitsubishi Heavy Ind Ltd.

Approved modifications 4 · newest first

1982-11-08SA913SW · Underwing filling provisions for water methanolsystem. · YS-11 Series
1982-11-08SA914SW · Installation of right hand propeller brake. · YS-11 Series
1982-11-08SA911SW · Electronics installation for Category II operation including Kollsman servoed altimeter, Fairchild 5424-502 flight... · YS-11A-500, YS-11A-200
1982-11-08SA912SW · Interior modification. · YS-11A-500, YS-11A-200

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.