Bristol Siddeley Engines were using Vulcan XA894 as a flying test bed for the Olympus 22R, which was designed to power the ill-fated BAC TSR-2 bomber. On that particular day, the aircraft was positioned at Filton on an apron near the former RAF station, with the 22R discharging its exhaust into a de-tuner. The power was increased to maximum reheat. An LP turbine disc was ejected from the engine, rupturing two fuel tanks and starting a fire. A brand new fire truck positioned in front of the aircraft was quickly enveloped in flames. The fire took hold so quickly that there was little the fire crew could do. Both the aircraft and fire truck were destroyed. The test engineers managed to exit the aircraft so there were no significant casualties. After the disbanding of 501 squadron, Bristol Siddeley Engine apprentices and British Aircraft Corporation apprentices used Barnwell Hall, the former RAF Officers Mess, for accommodation. The Bristol University Air Squadron continued to use some of the RAF facilities. Nowadays, many of the RAF buildings are derelict and Barnwell Hall has been demolished. For many years a surplus Concorde, G-BBDG, was housed in one of the hangars and cannibalised for spares by British Airways; following the decommissioning of Concorde, it was moved to the Brooklands Museum and restored. A further downhill extension to the main runway was made for the Concorde project in the late 1960s. There was also a shorter concrete runway at Filton with a roughly north–south orientation, which was sometimes used by a Dakota to ferry key BAC personnel to Fairford during Concorde development in the early 1970s. This has now been demolished for the Charlton Hayes housing development. 1977 onwards In 1977, British Aerospace, who owned a share in what became Airbus, had a major share of the site. Work undertaken included production of components for BAe 146 and Airbus aircraft. During the late 1990s and up to 2010 Douglas DC8 and Airbus A300 B4 aircraft flew regularly in and out of Filton. Airbus A300 B4 aircraft would be lined-up, awaiting conversion from passenger to freight use by BAE Systems. Boeing 747-200 maintenance was also undertaken. In 2002 BAE Systems left civil aircraft development and manufacture, to reorganise into a military manufacturer of aircraft, ships and other military products. Airbus continues on the site. The runway will be lost under housing developments. On 26 November 2003, Concorde