Narrative:

V-1 was 127 KTS. Master caution illuminated at 121 KTS, aborted. Systems functioned normally except #1 brake locked and would not release. Left approximately 2400' of skid mark. All attempts to release it failed. Brake limits showed a class B stop with approximately 60 minutes cooling time. Aircraft released to maintenance on the runway. Cause of the master caution was a pack trip.

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Original NASA ASRS Text

Title: MASTER CAUTION LIGHT ILLUMINATED JUST PRIOR TO V1. TKOF ABORTED. #1 BRAKE LOCKED AND WOULD NOT RELEASE. ACFT TURNED OVER TO MAINTENANCE ON RWY.

Narrative: V-1 WAS 127 KTS. MASTER CAUTION ILLUMINATED AT 121 KTS, ABORTED. SYSTEMS FUNCTIONED NORMALLY EXCEPT #1 BRAKE LOCKED AND WOULD NOT RELEASE. LEFT APPROX 2400' OF SKID MARK. ALL ATTEMPTS TO RELEASE IT FAILED. BRAKE LIMITS SHOWED A CLASS B STOP WITH APPROX 60 MINUTES COOLING TIME. ACFT RELEASED TO MAINT ON THE RWY. CAUSE OF THE MASTER CAUTION WAS A PACK TRIP.

Data retrieved from NASA's ASRS site as of August 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.