Pilot reported a slow speed ground collision occurred when he was unable to stop his aircraft from t...

Narrative:

My aircraft had just come out of maintenance to correct the problem of slewing to the left. I was going to fly it around the pattern to check the work. After startup; I eased forward out of the parking tie down and turned left onto the taxiway line toward the active runway. I estimate I was perhaps moving at 2-3 mph as I depressed the left rudder and turned left. I straightened the pedals but the aircraft continued turning left and was slowly heading in a circle toward the aircraft parked next to mine. I applied right pedal and brake and emergency brake but to no avail as the aircraft continued slowly towards the other plane. At that point I was almost 180 degrees from my original position. I attempted to shut the engine down but the plane continued to coast into the spinner of the second plane; so that we were almost nose to nose. I sustained prop damage and the other aircraft had spinner damage from my prop; which evidently was still turning when it hit. I estimate the collision speed was perhaps 2 mph. The same maintenance shop had worked on the brakes a couple of weeks ago as well as yesterday on the problem of flying left. I do not know how this problem could have been avoided from the cockpit as the plane simply would not respond. Obviously this was a maintenance error. I hope we find the exact cause.

Original NASA ASRS Text

Title: Pilot reported a slow speed ground collision occurred when he was unable to stop his aircraft from turning left.

Narrative: My aircraft had just come out of maintenance to correct the problem of slewing to the left. I was going to fly it around the pattern to check the work. After startup; I eased forward out of the parking tie down and turned left onto the taxiway line toward the active runway. I estimate I was perhaps moving at 2-3 mph as I depressed the left rudder and turned left. I straightened the pedals but the aircraft continued turning left and was slowly heading in a circle toward the aircraft parked next to mine. I applied right pedal and brake and emergency brake but to no avail as the aircraft continued slowly towards the other plane. At that point I was almost 180 degrees from my original position. I attempted to shut the engine down but the plane continued to coast into the spinner of the second plane; so that we were almost nose to nose. I sustained prop damage and the other aircraft had spinner damage from my prop; which evidently was still turning when it hit. I estimate the collision speed was perhaps 2 mph. The same maintenance shop had worked on the brakes a couple of weeks ago as well as yesterday on the problem of flying left. I do not know how this problem could have been avoided from the cockpit as the plane simply would not respond. Obviously this was a maintenance error. I hope we find the exact cause.

Data retrieved from NASA's ASRS site 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.

Attributes
ACN	1727327
Time
Date	202002
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Small Aircraft Low Wing 1 Eng Retractable Gear
Operating Under FAR Part	Part 91
Flight Phase	Taxi
Flight Plan	None
Aircraft 2
Make Model Name	Small Aircraft
Operating Under FAR Part	Part 91
Flight Phase	Taxi
Person 1
Function	Pilot Flying Single Pilot
Qualification	Flight Crew Private
Experience	Flight Crew Last 90 Days 17 Flight Crew Total 492 Flight Crew Type 17
Events
Anomaly	Aircraft Equipment Problem Critical Ground Event / Encounter Loss Of Aircraft Control Ground Event / Encounter Aircraft