Johnston Aircraft Service
Named as the FAA publishes it on its approvals.
Holds 3 approved modifications, most of them for the Piper PA-24 Comanche. FAA spelling: Johnston Aircraft Service.
Approved modifications 3 · newest first
Piper PA-24 Comanche 1Boeing E75 Stearman Kaydet 1Boeing D75 1Boeing B75 Stearman Kaydet 1Boeing A75 Stearman Kaydet 1Boeing 75 1
1972-05-19SA2334WE · Installation of Jacobs R755-A2M or R755-SM engine, JAS engine mount, Grumman SR-5404/MA96K-2 propeller and... · A-9, A-9B
1970-07-09SA2188WE · Installation of JAS No. 1 moveable canopy on 75 series aircraft modified by FAA approved hopper installation in lieu... · D75N1 (Army PT-27), A75L3, 75 (Army PT-13)
1960-01-01SA511WE · Lycoming O-540-B1B5 engine, Hartzell HC-A2XK-1/8433-7 propeller required. · PA-24 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.