Narrative:

While cleared to back taxi down runway 32 at panc, controller told us to expedite due to aircraft waiting in position to take off. As power was applied to expedite taxi, left brake locked up and we veered off runway 32. Luckily, we went in between taxi lights and no property was damaged. While back on the ramp, maintenance advised of a sheared wheel bolt that probably caused left brake to momentarily lock up. Wheel was removed and replaced and flight continued without incident 2 hours later.

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Original NASA ASRS Text

Title: AIR TAXI CARGO PLT OF A BEECH 58T BARON LOST CTL OF THE ACFT WHEN THE L MAIN BRAKE FAILED DURING TAXI IN. THERE WAS NO DAMAGE TO THE ACFT OR ARPT PROPERTY.

Narrative: WHILE CLRED TO BACK TAXI DOWN RWY 32 AT PANC, CTLR TOLD US TO EXPEDITE DUE TO ACFT WAITING IN POS TO TAKE OFF. AS PWR WAS APPLIED TO EXPEDITE TAXI, L BRAKE LOCKED UP AND WE VEERED OFF RWY 32. LUCKILY, WE WENT IN BTWN TAXI LIGHTS AND NO PROPERTY WAS DAMAGED. WHILE BACK ON THE RAMP, MAINT ADVISED OF A SHEARED WHEEL BOLT THAT PROBABLY CAUSED L BRAKE TO MOMENTARILY LOCK UP. WHEEL WAS REMOVED AND REPLACED AND FLT CONTINUED WITHOUT INCIDENT 2 HRS LATER.

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.