After a dual check, the student was authorised for his second solo flight. He was briefed to practice simple hover manoeuvres and landings on the grass. When he was confident with these, he was to practice landings on the hard-stand. By about 0935 hours, he had not practised any hard-stand landings, but as he had been briefed to return to the school by 0940, he commenced to taxy back along the taxiway. About halfway back, feeling tired, he decided to land on the taxiway to rest before continuing. He turned the aircraft into the gusty, westerly wind, and commenced a landing. He allowed the aircraft to drift backward off the taxiway and reverted to an earlier fault of landing quickly. The right skid heel dug into the grass and the left skid then hit firmly. The student allowed the aircraft to bounce, drift left, yaw and hit the ground again with the heels of both skids. The student was quite shaken and remained on the ground for about two minutes before hover taxiing the helicopter to the hangar. A subsequent inspection revealed substantial damage to the landing skid attachments. This accident was not the subject of a formal on scene investigation.