Eye witnesses in NI (Annex N to BOI):
"The helicopter semed to be flying at very low level"
"I thought it was strange that such a large helicopter was flying so low to the ground"
"I would say it was flying about 100 feet above the ground"
"We usually see helicopters going this way but they always fly higher"
"It was flying low the whole time"
"The weather here was clear but the Mull was obscured by mist"