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

Tbm, INC

Holds 2 approved modifications, most of them for the Lockheed Martin C-130. FAA spelling: TBM, Inc.

Approved modifications 2 · newest first

Lockheed Martin C-130 1Sikorsky S-58 1
1991-08-09SA5088NM · To allow operations of aircraft with two pilot crew while operating in aerial fire retardant dispersal modes, modify... · C-130A (Restricted Category)
1980-03-26SH268WE · Installation of stainless steel fire shields around aluminum engine mount fittings (P/N S1620-61435) of HSS, HUS,... · S-58 Series

Source: FAA Dynamic Regulatory System (type certificate data sheets, supplemental type certificates, technical standard order authorisations). An organisation's name is as the FAA spelled it on each record; related spellings are separate pages.