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

Texas Helicopter CO. INC

Holds 4 approved modifications, most of them for the Bell-Carson 47. FAA spelling: Texas Helicopter Co. Inc.

Approved modifications 4 · newest first

Bell-Carson 47 4
2010-12-15SH1170SW · Installation of tail rotor gear box no. 47-640-065-31 and tail rotor hub and blade assembly no. 47-640-071-3. ... · 47G
2010-12-15SH909SW · Installation of Franklin 6V-350-A engine, derated to 200 HP. Limited to installation on serial number 1355 ONLY. · 47H-1
2010-12-15SH1007SW · Modify tail rotor pitch change mechanism to add duplex bearing, (P/N 47-641-131-1) in place of single row bearing. ... · 47D1, 47G, 47G-2
2010-12-15SH963SW · Installation of Bell Model 47G-2A-13-place wide cabin on the Bell Model 47G-5, retaining the 47G-5 instruments and... · 47G-5

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.