Narrative:

During landing roll at least one of the brakes locked-up and would not release. The captain was able to clear the active runway; but only by using abnormally high engine power settings. Once clear of the active runway we set the parking brake and began checking all available indicators in the flight deck to determine what was happening. (Note: it was not immediately clear to us that we had a brake issue). The btms indicators did not show abnormal heat indications for any of the brakes. The highest btms indicator was for the left main landing gear's inboard brake at '04' but it was still in the 'green.' the other brakes were either a '01' or '02.' we determined that the aircraft was not able to move and notified ground control and dispatch of our situation. The port authority and air carrier operations both responded to our location on taxiway B. Air carrier ramp attempted to tug the aircraft into the gate; but was unable to move the aircraft. On one attempt the tow bar broke under the pressure. Operations and the port authority then coordinated deplaning the passengers and busing them to the terminal. Local contract maintenance arrived and worked to release the brake under the direction of air carrier maintenance control. The two flight attendants and I left the aircraft before maintenance was finished. The captain remained with the aircraft. Maintenance investigation required! The contract mechanic noted that the brake in question was newly installed compared to the other 3 brakes on the aircraft.

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Original NASA ASRS Text

Title: At least one of a CRJ900's brakes locked up after landing preventing the aircraft from moving under power or being towed. The crew and passengers were bused to the gate from the aircraft's location on a taxiway.

Narrative: During landing roll at least one of the brakes locked-up and would not release. The Captain was able to clear the active runway; but only by using abnormally high engine power settings. Once clear of the active runway we set the parking brake and began checking all available indicators in the flight deck to determine what was happening. (Note: it was not immediately clear to us that we had a brake issue). The BTMS indicators did not show abnormal heat indications for any of the brakes. The highest BTMS indicator was for the left main landing gear's inboard brake at '04' but it was still in the 'green.' The other brakes were either a '01' or '02.' We determined that the aircraft was not able to move and notified Ground Control and Dispatch of our situation. The Port Authority and Air Carrier Operations both responded to our location on Taxiway B. Air Carrier Ramp attempted to tug the aircraft into the gate; but was unable to move the aircraft. On one attempt the tow bar broke under the pressure. Operations and the Port Authority then coordinated deplaning the passengers and busing them to the terminal. Local Contract Maintenance arrived and worked to release the brake under the direction of Air Carrier Maintenance Control. The two Flight Attendants and I left the aircraft before Maintenance was finished. The Captain remained with the aircraft. Maintenance investigation required! The Contract Mechanic noted that the brake in question was newly installed compared to the other 3 brakes on the aircraft.

Data retrieved from NASA's ASRS site as of April 2012 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.