Narrative:

Aircraft has no generator/starter. Preparing aircraft for start in order to move to proper parking area designated for guest/transit aircraft. Chocked nosewheel of vintage 1952 mooney-mite, throttle set in idle position with friction knob tightened, magneto switch off. Then primed carburetor twice, swung propeller through 3-5 times, turned key on for magneto ignition. Swung propeller, engine started to turn over and start but, after 2 blade swings, stopped. Turned off ignition and reset throttle and tightened friction knob. Primed once, swung propeller 3-5 times, turned on ignition switch to both magnetos, throttle still in flight idle and friction snugged down. Hand swung propeller, engine caught and went to full power, aircraft jumped chocks. I moved in time and avoided propeller, reached into cockpit as aircraft moved quickly forward and turned off ignition and reconfirmed throttle still in idle position. In this short time of aircraft moving forward the left wingtip struck the right tail light of a parked car then the wing swung up and over the hood knocking off the driver's rear view mirror. This initial impact caused the aircraft to swing left and continue forward coming to a stop against the nose of a cessna 180 with the cessna's exhaust stack partially embedded into the leading edge skin of the right wing. The wooden propeller, 1 blade, fractured but did not separate and did no damage to the cessna. What caused the engine to go to full power is unknown and is being checked at this time. Damage was relatively light and repairable. Best situation would have had another person's help in the starting sequence for better monitoring and control of operation with this type of vintage aircraft as well as moving it to a better starting area. Fortunately, no one was injured and damage was minimal considering what could have happened! A very strong lesson learned about safety. This happening to even a seasoned pilot, who is a safety officer in the military as well as a CH47 maintenance pilot, and flying for a major airline, an unfortunate and very humbling and sobering experience!

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Original NASA ASRS Text

Title: WHILE BEING HAND PROPPED A VINTAGE ACFT WENT TO FULL PWR, JUMPING ITS CHOCKS AND MAKING CONTACT WITH A VEHICLE AND ANOTHER ACFT.

Narrative: ACFT HAS NO GENERATOR/STARTER. PREPARING ACFT FOR START IN ORDER TO MOVE TO PROPER PARKING AREA DESIGNATED FOR GUEST/TRANSIT ACFT. CHOCKED NOSEWHEEL OF VINTAGE 1952 MOONEY-MITE, THROTTLE SET IN IDLE POS WITH FRICTION KNOB TIGHTENED, MAGNETO SWITCH OFF. THEN PRIMED CARB TWICE, SWUNG PROP THROUGH 3-5 TIMES, TURNED KEY ON FOR MAGNETO IGNITION. SWUNG PROP, ENG STARTED TO TURN OVER AND START BUT, AFTER 2 BLADE SWINGS, STOPPED. TURNED OFF IGNITION AND RESET THROTTLE AND TIGHTENED FRICTION KNOB. PRIMED ONCE, SWUNG PROP 3-5 TIMES, TURNED ON IGNITION SWITCH TO BOTH MAGNETOS, THROTTLE STILL IN FLT IDLE AND FRICTION SNUGGED DOWN. HAND SWUNG PROP, ENG CAUGHT AND WENT TO FULL PWR, ACFT JUMPED CHOCKS. I MOVED IN TIME AND AVOIDED PROP, REACHED INTO COCKPIT AS ACFT MOVED QUICKLY FORWARD AND TURNED OFF IGNITION AND RECONFIRMED THROTTLE STILL IN IDLE POS. IN THIS SHORT TIME OF ACFT MOVING FORWARD THE L WINGTIP STRUCK THE R TAIL LIGHT OF A PARKED CAR THEN THE WING SWUNG UP AND OVER THE HOOD KNOCKING OFF THE DRIVER'S REAR VIEW MIRROR. THIS INITIAL IMPACT CAUSED THE ACFT TO SWING L AND CONTINUE FORWARD COMING TO A STOP AGAINST THE NOSE OF A CESSNA 180 WITH THE CESSNA'S EXHAUST STACK PARTIALLY EMBEDDED INTO THE LEADING EDGE SKIN OF THE R WING. THE WOODEN PROP, 1 BLADE, FRACTURED BUT DID NOT SEPARATE AND DID NO DAMAGE TO THE CESSNA. WHAT CAUSED THE ENG TO GO TO FULL PWR IS UNKNOWN AND IS BEING CHKED AT THIS TIME. DAMAGE WAS RELATIVELY LIGHT AND REPAIRABLE. BEST SIT WOULD HAVE HAD ANOTHER PERSON'S HELP IN THE STARTING SEQUENCE FOR BETTER MONITORING AND CTL OF OP WITH THIS TYPE OF VINTAGE ACFT AS WELL AS MOVING IT TO A BETTER STARTING AREA. FORTUNATELY, NO ONE WAS INJURED AND DAMAGE WAS MINIMAL CONSIDERING WHAT COULD HAVE HAPPENED! A VERY STRONG LESSON LEARNED ABOUT SAFETY. THIS HAPPENING TO EVEN A SEASONED PLT, WHO IS A SAFETY OFFICER IN THE MIL AS WELL AS A CH47 MAINT PLT, AND FLYING FOR A MAJOR AIRLINE, AN UNFORTUNATE AND VERY HUMBLING AND SOBERING EXPERIENCE!

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.