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

Southwestern Aero Exchange INC.

Holds 23 approved modifications, most of them for the Beechcraft TC-45. FAA spelling: SOUTHWESTERN AERO EXCHANGE INC..

Approved modifications 23 · newest first

2007-03-20SA1708WE · Removal of cargo door (approved under STC SA995WE) to permit aircraft to engage in special operations such as aerial... · Army AT-11, Navy SNB-1, C18S
2006-05-01SA2204WE · Installation of 2 AiResearch TPE331-1 series turbo prop engines with Hartzell HCB3TN propellers: 8-1/2 inches... · C-45G, TC-45G, C-45H
2006-05-01SA3385WE · Installation of AiResearch TPE 331-1-101B engines and increase gross weight to 11500 pounds. · C-45G, C-45H, D18C
2006-05-01SA4-1069 · Remove original Arens controls and lock mechanism for left and right cowl flaps and replace with electronic... · Army AT-11, C18 Series, C18S (Army AT-7)
2006-05-01SA285WE · Nose strut snubber installation. · C-45G, C-45H, E18S
2006-05-01SA947WE · Interior arrangement. Data not suitable for reproduction in other aircraft; installation for Beech C 45H, Serial... · C-45H
2006-05-01SA1171WE · Installation of two AiResearch TPE331 Series engines, tricycle landing gear, wing platform modifications, and... · C-45G, C-45H, D18C
2006-05-01SA1752WE · Installation of AiResearch Air Conditioning system. · C-45H
2006-05-01SA111WE · Installed Volpar Mark IV tricycle landing gear. · C-45G, C-45H, D18C
2006-05-01SA1832WE · Installation of Volpar Tricycle Landing Gear. · C-45G, C-45H, D18C
2006-05-01SA1223WE · See STC SA1223WE Addendum. · C-45H
2006-05-01SA554WE · Installation of square topped stair cabin door. · D18S, D18C, C-45G
2006-02-27SA4-1531 · Installation of Tricycle landing gear and revised nose assembly with optional radome. · C-45G, C-45H, D18S
2006-02-27SA4-1397 · Installation of Tricycle landing gear and nose assembly. · C-45G, C-45H, D18S
2006-02-27SA468WE · Replacement of round window between Bulkhead Nos. 9 and 10 with Beech Super 18 type window. · E18S, E18S-9700, H18
2006-02-27SA1641WE · Interior arrangement. · C-45H
2006-02-27SA3126WE · Installation of pilot cockpit door. · E18S, E18S-9700, G18S
2006-02-27SA2400WE · Installation of fiberglass nose cap left hand outer wing leading edge. · G18S
2006-02-27SA4-855 · Addition of windows in cabin. · Army AT-11, Navy SNB-1, C18S
2006-02-24SA4-1578 · Removal of the main cabin entrance door and installation of stair door. · D18C, D18S
2006-02-24SA4-1645 · Installation of Stewart-Warner Model 8259-A heater. · TC-45G, H18, G18S
2004-02-12SA565WE · Installation of wing tips per FAA Sealed Drawing No s. ASP-2029 and API-2030. · Army AT-11, C18S, 3N
1997-09-22SA2000WE · Installation of wing spar reinforcement. · 3N, 3NM, 3TM

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.