This incident currently has little information. Believed to have been during 1928 or 1929 an aircraft is believed to have crashed onto the east side of Great Whernside but it is not known whether this was a civilian or a military aircraft. If it were military then the only RAF Unit in Yorkshire at this time was 26 Squadron flying from Catterick using Atlas aircraft. However; none of their aircraft were believed damaged in landings away from base other than the incident on Grinton Moor (detailed on this website).
The probability of it being a civilian aircraft is therefore believed stronger, mainly because the incident was referred to in an article in the Dalesman magzine in the 1960's as a civilan aircraft. It was also stated that workers building Scarhouse reservoir dam had assisted in the rescue of the crew. About the only confirmed thing is that workers constructing the Scarhouse reservoir are said to have witnessed the incident and gone up to assist in a rescue.
Crew - Names unknown.