Having abandoned three attempts to rescue 3 climbers due to low cloud on the mountain, during the fourth attempt from a different direction the Pilot Flying (PF) became temporarily spatially disorientated in cloud at night on Beinn Narnain, Scotland.
Having got into a dreadful situation during a night rescue in the mountains and with all the modern instrument and autopilot fit on the helicopter it was basic IF flying skills which saved the day.
Report conclusion (extract):
The situation was being resolved, by the PF using his basic IF skills and with the assistance of the Pilot Monitoring (PM) announcing that they were above the high ground, when the helicopter regained VMC on top of the cloud.