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

Pratt & Whitney Aircraft Grp

Holds 1 approved modification. FAA spelling: Pratt & Whitney Aircraft Grp.

Approved modifications 1 · newest first

1980-03-14SE33NE · Incorporation of improved combustor and turbine components which permit operation at increased EGT limits. · JT9D-7F

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.