Who holds what · as the FAA records the name

Sk Engineering CO

Named as the FAA publishes it on its approvals.

Holds 9 approved modifications, most of them for the Douglas DC-3. FAA spelling: SK Engineering Co.

Approved modifications 9 · newest first

Douglas DC-3 3 Dehavilland DHC-6 1

1974-08-08SA106NW · Installation of emergency exit on ach side of fuselage. · DHC-6-100

SA1-244 · Enlarged windows in cabin. · C-45 Series, 18 Series

SA1-257 · Windows on both sides of fuselage. · DC-3 Series, DC-3 Series

SA1-279 · Cabin windows enlarged and exit and original windows relocated. · C-45 Series

SA1-375 · Windows. · DC-3 Series

SA1-334 · Large window installation. · Lockheed 18

SA1-242 · Enlarged window on each side of fuselage. · 18 Series, C-45 Series

SA1-161 · Enlarged window on each side of fuselage. · 18 Series

SA1-318 · New windows and relocation of exits. · DC-3 Series, DC-3 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.