Who holds what · as the FAA records the name

Neptune Aviation Service INC.

Named as the FAA publishes it on its approvals.

Holds 2 type certificates (5 models). FAA spelling: Neptune Aviation Service Inc..

Type certificates 2

E-265Engine · J34-WE-34, W-340, J34-WE-36, 24C4D-1

A15SWAircraft · SP-2H (P2V-7)

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.