SR22
Flight Crew Air Transport Pilot (ATP); Flight Crew Multiengine; Flight Crew Instrument
Flight Crew Last 90 Days 55; Flight Crew Total 3263; Flight Crew Type 1097
Time Pressure
Aircraft Equipment Problem Less Severe; Ground Event / Encounter Loss Of Aircraft Control; Ground Event / Encounter Object
Aircraft Aircraft Damaged; General Maintenance Action
Human Factors; Procedure
Our Cirrus SR22/G was parked. While waiting for my clearance; I reached down to adjust my seat. The seat abruptly slid all the way back to the maximum furthest back and lowest position. I quickly realized the aircraft began to move forward. My seatbelt and the max-back seat position made it impossible for me to reach both brake/rudder pedals and stop the aircraft.  As I continued to struggle; I was finally able reach the left pedal and turn the aircraft to avoid hitting other aircraft parked near me; but I still could not reach both pedals to stop the airplane. Eventually; I was able to direct the plane towards a large dumpster to avoid other aircraft in the area.  I hit the dumpster and the aircraft came to a full stop; damaging the propeller and propeller spinner.  The damage to my aircraft was not substantial; and therefore; not an accident under 49 C.F.R Part 830. My lesson is to reset the brakes pressing hard on the brake pedals once I get back inside the plane.  I'll also avoid any seat adjustment after engine start-up.  Plus my plan is to put something behind my seat to prevent the seat from going too far back.
SR22 Pilot reported loss of aircraft control on ramp due to seat adjustment prevented access to controls; resulted in ground collision with dumpster.