I still think a contributory cause was the fact there was no low level radar coverage available in this area thus enabling the crew the option of flying in IMC at a safe altitude. This was due to the withdrawl of radar and hence a possible LARS service from Macrihanish about a month prior to the accident although Macrihanish did not close for some time after the accident.
Part of the blame should therefore fall on the senior officer who authorised the premature withdrawl of the radar.