In October last year, Lois Preston was taking part in a training exercise at Darley Moor airfield near Ashbourne when her hang glider crashed.
A report by the [
The AAIB report today said the length of the tow line being used was just below the minimum length specified and that "this reduced the pilot's margin for error and meant any angular deviations would develop more quickly".
The report said it had been intended that the hang glider would be towed to a height of 1,500ft (457m'>Air Accidents Investigation Branch](http://www.aaib.gov.uk/home/index.cfm) (AAIB) said her hang glider rolled to the left as she was being towed by a light aircraft.The tow line was released but Lois could not recover from the loss of control and crashed into the ground nose down.She) before release.
It also found no defects with the tug aircraft or the hang glider that could have contributed to the accident.
The report added that following the crash the BHPA had "initiated an in-depth review of aerotowing procedures and is also reviewing its audit and inspection processes".