I heard the metallic clang as he lifted a couple of crowbars off the sledge, and nodded. We could only try. I set the searchlight on the snow, adjusted it on its gimbals so as to illuminate the door, took one of the crowbars and thrust it beneath the foot of the oval, the flattened end sliding easily between door and fuselage. Jackstraw did the same. We heaved together, but nothing happened. Again we heaved, and again, our feet coming clear of the ground, but the door remained immovable. To localise pressure, we concentrated on one bar, and this time we felt something giving: but it was the lever, not the door. With a pistol-shot crack, the cold-weakened crowbar snapped six inches from the end and we both landed on our backs.

Even the urgency of the moment, my almost complete lack of knowledge about planes, was no excuse. I cursed my stupidity in wasting valuable time trying to force open a massive door locked on the inside by heavy clips designed to withstand an internal pressure of many thousands of pounds, grabbed searchlight and battery, ducked round under the towering tail assembly into the full force of the wind and flying drift and moved forward till I came to the right wing.

Its tip was buried deep under the frozen snow, the airscrew blades bent back at right angles to their normal line. I thought perhaps I might try to scramble up the wing towards the fuselage and smash in one of the cabin windows, but after a couple of seconds wild slithering on the ice-sheeted wing in that gusting gale wind I gave up the idea. To maintain a foothold was quite impossible: besides, it was doubtful whether I could have smashed in a window anyway. Like the door, the windows were designed to withstand great pressures.

Stumbling, slipping, we ran round the buried tip of the wing, and clear in sight now was the ice hummock that had brought the big airliner to its sudden halt.