Experimental plane pilot hand propping aircraft. Aircraft jumps chocks, hits plane 30 ft away.

Attributes
ACN	211357
Time
Date	199205
Day	Sat
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : aik
State Reference	SC
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : bdr
Operator	general aviation : personal
Make Model Name	Small Aircraft
Flight Phase	ground : preflight other
Flight Plan	None
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : private
Experience	flight time last 90 days : 14 flight time total : 284 flight time type : 80
ASRS Report	211357
Events
Anomaly	conflict : ground critical other anomaly other anomaly other
Independent Detector	other other : unspecified cockpit
Resolutory Action	other
Consequence	other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

The chocks I used time were triangular shaped instead of square. The plane (my private) was parked by the terminal building, which used the triangular chocks. The chocks in my hangar are square, these are the ones I had always used before. Apparently the triangular chocks did not offer enough resistance to stop this airplane. Airplane weight is 999.00 pounds, 180 horsepwr, propeller 76 inchs by 56 inches fixed. Large square chocks need to be used from now on, or better yet, I should install a 'tow-plane' hook. While hand-propping my biplane it jumped the chocks ran across the ramp and struck another airplane. The other plane was approximately 30 ft away. No persons were in either airplane and no one was injured.

Original NASA ASRS Text

Title: EXPERIMENTAL PLANE PLT HAND PROPPING ACFT. ACFT JUMPS CHOCKS, HITS PLANE 30 FT AWAY.

Narrative: THE CHOCKS I USED TIME WERE TRIANGULAR SHAPED INSTEAD OF SQUARE. THE PLANE (MY PRIVATE) WAS PARKED BY THE TERMINAL BUILDING, WHICH USED THE TRIANGULAR CHOCKS. THE CHOCKS IN MY HANGAR ARE SQUARE, THESE ARE THE ONES I HAD ALWAYS USED BEFORE. APPARENTLY THE TRIANGULAR CHOCKS DID NOT OFFER ENOUGH RESISTANCE TO STOP THIS AIRPLANE. AIRPLANE WT IS 999.00 POUNDS, 180 HORSEPWR, PROP 76 INCHS BY 56 INCHES FIXED. LARGE SQUARE CHOCKS NEED TO BE USED FROM NOW ON, OR BETTER YET, I SHOULD INSTALL A 'TOW-PLANE' HOOK. WHILE HAND-PROPPING MY BIPLANE IT JUMPED THE CHOCKS RAN ACROSS THE RAMP AND STRUCK ANOTHER AIRPLANE. THE OTHER PLANE WAS APPROX 30 FT AWAY. NO PERSONS WERE IN EITHER AIRPLANE AND NO ONE WAS INJURED.

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.