On the weekly shuttle back from Dusseldorf on Wednesday, we're coming into land and when about 30-50m from the ground suddenly we abort and climb steeply. We then wheel around, from side to side accelerating hard and then backing off, accelerating hard etc. etc. climbing all the time. After about 5 minutes the captain calls the Chief Purser onto the flight deck; note two of them, not one, went... After another couple of minutes the captain tells us over the intercom that he had a hydraulic problem affecting the landing gear and the brakes, the landing gear is partially down but he's not sure if it's locked in position. We are then given instruction on the emergency landing procedure; including hearing the proper 'emergency instruction' and circle for 30 minutes whilst they prepare the runway to recieve us.. As we start to decend again the captain tells us he's now pretty confident the landing gear is engaged. We went into land but unfortunately, after all that, weren't told to adopt the emergency landing position, which was a bit of a shame. All in all an enjoyable exercise. In the past I know I'd have been willing the plane to crash, fortunately I'm not doing that anymore. Some airplane twitcher caught onto the story, here: [URL]http://www.airliners.net/open.file?id=1074089&size=M&width=1024&height=695&sok=&photo_nr=&prev_id=&next_id=[/URL]