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

P4 Engineering Pllc

Named as the FAA publishes it on its approvals.

Holds 1 approved modification, most of them for the Short Bros SD3. FAA spelling: P4 Engineering PLLC.

Approved modifications 1 · newest first

Short Bros SD3 1
2024-08-02ST02800SE · Removal of performance penalty when operating with jump door wind deflector installed · SD3-60 SHERPA

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.