Dan Air Engineering Limited was the maintenance arm of Dan Air Services Limited, one of Britain's foremost wholly privately owned, independent airlines during the 1970s and 80s. Dan-Air Engineering was established in 1954 at Lasham Airfield to maintain the fledgling airline's rapidly growing fleet as well as to cater to the maintenance requirements of third parties. The organisation embarked on a major expansion during the 1970s, following the introduction of several new aircraft types into its sister airline's fleet. This led to the opening of a new maintenance base at Manchester.