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Who holds what · as the FAA records the name

4J'S Aviation

Named as the FAA publishes it on its approvals.

Holds 3 approved modifications, most of them for the Cessna A152. FAA spelling: 4J's Aviation.

Approved modifications 3 · newest first

Cessna A152 2Cessna 152 1
2019-07-26SE792NW · Modification of a Lycoming0-235-L2C, or 0-235-L2A engine to increase HP rating from 115-HP at 2700 rpm to a... · O-235-L2A, O-235-L2C
2019-07-26SA1000NW · Installation of Lycoming 0-235-L2C(M) engine, McCauley 1A103/TCM 6958 propeller, and associated systems · 152, A152
2019-07-26SA1008NW · Installation of a Sensenich S72CKS6-0-52, -54, or -56 propeller/spinner assembly on Lycoming O-235-L2C or... · 152, A152

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.