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

Gulfcoast Stacks

Named as the FAA publishes it on its approvals.

Holds 1 approved modification, most of them for the Piper PA-39 Twin Comanche C/R. FAA spelling: Gulfcoast Stacks.

Approved modifications 1 · newest first

Piper PA-39 Twin Comanche C/R 1Piper PA-30 Twin Comanche 1
1989-10-23SA2648SO · Addition of Exhaust Stack Extensions · PA-30, PA-39

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.