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Who holds what · as the FAA records the name

T-34 Spar Corporation

Named as the FAA publishes it on its approvals.

Holds 3 approved modifications, most of them for the Beechcraft D-45. FAA spelling: T-34 Spar Corporation.

Approved modifications 3 · newest first

Beechcraft D-45 1Beechcraft A45 1
2019-02-07SA09897AC · Modification of fuel return system to bypass the header tank · D45 (Military T-34B)
2010-08-27SA10362SC · Installation of Airframe Life Extension Cable (ALEC) system · 45 (Military YT-34), A45 (Military T-34A;...
2008-06-12SA10835SC · Installation of an external aluminum doubler on lower rear wing spar. · 45 (Military YT-34), A45 (Military T-34A;...

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.