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

D Napier & Son LTD

Named as the FAA publishes it on its approvals.

Holds 3 approved modifications. FAA spelling: D Napier & Son Ltd.

Approved modifications 3 · newest first

1970-06-05SA4-914 · Goodrich multidisc brakes and Westinghouse 'Decelostat' anti- skid controller type AP-3 on aircraft modified per STC SA4-582. · 440 Military C-131E, 340
1960-01-01SA4-689 · Napier Eland 504 turboprop engines with deHavilland PD216/466 propellers with XPR5662950SA-124 or PPR626950SA-124 blades. · 340, 440 Military C-131E
1960-01-01SA4-582 · Napier Eland 504 turboprop engines with deHavilland PD216/466 propellers with XPR5662950SA-124 or PPR626950SA-124 blades. · 440 Military C-131E, 340

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.