No.11 Radio School at Hooton Park was responsible for the training of new wireless operators through a course of ground school and airborne practice. On the 28th August 1943 L6202 was being used for just such an exercise with a staff pilot and three wireless operators. At some point in the flight the aircraft entered cloud off the North Wales coast and without the pilot realising flew inland and struck the western side of Llwydmor above Aber Falls.

When contact was lost and the aircraft failed to return Hooton Park declared the aircraft overdue and the by then well practiced procedure for locating lost aircraft was put into action. On the 29th August the RAF Mountain Rescue Service at Llandwrog were notified that the aircraft was believed to have been lost in the area to the North of Capel Curig and East of Bethesda.

The MRS travelled to Tal-y-Bont in the Conwy valley to begin their search in the area around Llyn Eigiau and Melynllyn, their progress was slowed by damage to the track up to Mellynllyn resulting in the vehicles being left short of the hut that was normally used as a mountain base for searches. The search began at 21:00 and was called off at about midnight and recommenced 5 hours later with assistance from a No.43 Maintenance Unit detachment at Capel Curig. The search contiued with the higher ground of the Carneddau being searched.

It was not until the early afternoon of the 31st that Hooton Park informed Llandwrog that the wreck had been sighted by an aerial search to the north of the existing search area. The MRS immediately set out for the area and upon arrival found that No.43 MU had already located the crashed aircraft. Arrangements were then made for a fresh party of men to return on the 1st September to recover the bodies of the crew via the track in the Anafon valley.