Keyway Air Transport was the name given to a small and now defunct airline

Airline

An airline provides air transport services for traveling passengers and freight. Airlines lease or own their aircraft with which to supply these services and may form partnerships or alliances with other airlines for mutual benefit...

 which operated from Frankfurt International Airport

Frankfurt International Airport

Frankfurt am Main Airport , or simply Frankfurt Airport, known in German as Flughafen Frankfurt am Main or Rhein-Main-Flughafen, is a major international airport located in Frankfurt, Germany, southwest of the city centre....

 (which at the time was also home to a United States Air Force

United States Air Force

The United States Air Force is the aerial warfare service branch of the United States Armed Forces and one of the American uniformed services. Initially part of the United States Army, the USAF was formed as a separate branch of the military on September 18, 1947 under the National Security Act of...

 facility; Rhein-Main Air Base

Rhein-Main Air Base

Rhein-Main Air Base was a U.S. Air Force / NATO military airbase near the city of Frankfurt am Main, Germany. It occupied the south side of Frankfurt International Airport. Its airport codes are discontinued....

) using a Boeing T-43 Bobcat (a military variant of the Boeing 737-200

Boeing 737

The Boeing 737 is a short- to medium-range, twin-engine narrow-body jet airliner. Originally developed as a shorter, lower-cost twin-engine airliner derived from Boeing's 707 and 727, the 737 has developed into a family of nine passenger models with a capacity of 85 to 215 passengers...

) and a Boeing 707-355C

Boeing 707

The Boeing 707 is a four-engine narrow-body commercial passenger jet airliner developed by Boeing in the early 1950s. Its name is most commonly pronounced as "Seven Oh Seven". The first airline to operate the 707 was Pan American World Airways, inaugurating the type's first commercial flight on...

. Details on its operation are unknown. The 737-200 was operated by Keyway Air Transport from 1986 up until 1992, when it was transferred to defence contractor EG&G

EG&G

EG&G, formally known as Edgerton, Germeshausen, and Grier, Inc., is a United States national defense contractor and provider of management and technical services. The company was involved in contracting services to the United States government during World War II, and conducted weapons research and...

, who operated the aircraft in the Janet

Janet (airline)

Janet is the de facto name for a small fleet of passenger aircraft operated by defense contractor EG&G. Their aircraft currently serve mostly the Nevada Test Site from their terminal at Las Vegas' McCarran International Airport...

 fleet up until 2009 when it was retired from service. The Boeing 707-355C was operated from 1986 up until 1989, when it was transferred to HCL Aviation

HCL

HCL or HCl can stand for:* Hairy cell leukemia, an uncommon and slowly progressing B cell leukemia* Hardware compatibility list...

. From 1992 onwards, after having been modified for military service by Raytheon

Raytheon

Raytheon Company is a major American defense contractor and industrial corporation with core manufacturing concentrations in weapons and military and commercial electronics. It was previously involved in corporate and special-mission aircraft until early 2007...

, the aircraft was used by the United States Air Force as an airborne command post for the United States Central Command

United States Central Command

The United States Central Command is a theater-level Unified Combatant Command unit of the U.S. armed forces, established in 1983 under the operational control of the U.S. Secretary of Defense...

 and later on was reported as being used by the Air Force Special Operations Command

Air Force Special Operations Command

Air Force Special Operations Command is the Special Operations component of the United States Air Force and the US Air Force component command to the United States Special Operations Command , a unified command located at MacDill Air Force Base, Florida...

, before being put in storage at the 309th Aerospace Maintenance and Regeneration Group located on Davis–Monthan Air Force Base in 2002.