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Who holds what · as the FAA records the name

Knopp Steve and Norma

Named as the FAA publishes it on its approvals.

Holds 2 approved modifications, most of them for the Cessna 182 Skylane. FAA spelling: Knopp Steve and Norma.

Approved modifications 2 · newest first

2009-02-09SA02278AK · Installation of Hartzell Propeller Models PHC-C3YF-1RF/F8068-4 to F8068+2 and PHC-G3YF-1RF/F8068-4 to F8068+2. · 182, 182A, 182B
1991-07-11SA461NW · Installation of a Continental IO-520-D engine, McCauley D2A34C58-LMN/S-90AT-B and/or D3A32C90/82NC-2 propeller,... · 182H, 182J, 182K

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.