Bell helicopter pilot reported slight damage resulted from a firm landing when the helicopter was unstable at lift-off because the left skid was stuck to the hot asphalt.

Narrative

At the time of this event the aircraft was parked outside the hangar in the usual location for aircraft at this base. This model of aircraft will often lift off in a left skid low attitude due to the weight of the crew and equipment on the left side of the aircraft. I first realized the situation was not normal when the aircraft began rolling rapidly to the left. Recognizing the beginning of dynamic rollover; I applied the action of quickly lowering the collective pitch. The right skid then dropped firmly to the ground. I shut down the aircraft; reported the event to the company operational control center and contacted maintenance to check the aircraft. I had performed a preflight inspection in the hangar earlier in the day and did a walk around inspection immediately before lift off. The stuck condition of the skid was not apparent during this inspection. It was a hot; sunny summer day with a 95+ degree F free air temperature.The result was a firm landing with no injuries to the pilot or crew and only a minor bend in the right side of the skid landing gear. The skids were replaced and the aircraft was thoroughly inspected by maintenance and returned to service a day or two later. This event would not have occurred if the aircraft skid had not stuck to the soft asphalt. I recommended to my company that they relocate the commonly used parking location to another area less subject to soft asphalt. I would also recommend reminding helicopter pilots in general to avoid parking their aircraft (especially skid aircraft) on asphalt during the hot summer months.