Narrative:

I brought plane into gate and chocked front gear while others chocked the two main gears. After putting on towbar [I] proceeded to hook up push tug to aircraft. Tested brakes at 8-10 ft out; when within about 5-6 inches the brakes on the tug failed and I proceeded to push the towbar into the aircraft. No visible damage to aircraft. Towbar head totaled.

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Original NASA ASRS Text

Title: After successfully marshalling and chocking the EMB into the gate; a ramp serviceman struck the aircraft with a towbar when the tug's brakes failed while attempting to attach the tow bar; which was totaled.

Narrative: I brought plane into gate and chocked front gear while others chocked the two main gears. After putting on towbar [I] proceeded to hook up push tug to aircraft. Tested brakes at 8-10 FT out; when within about 5-6 inches the brakes on the tug failed and I proceeded to push the towbar into the aircraft. No visible damage to aircraft. Towbar head totaled.

Data retrieved from NASA's ASRS site as of July 2013 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.