Narrative:

Loss of hydraulic pressure caused failure of brakes and the aircraft taxied off the taxiway at slow speed. I reentered the taxiway after energizing the standby hydraulic pump, taxied to our hangar without further abnormality, and contacted maintenance. I should have immediately stopped the aircraft by use of the emergency brake.

Google
 

Original NASA ASRS Text

Title: BRAKE FAILURE DURING TAXI. ACFT LEFT TXWY, STANDBY HYDS ACTIVATED AND TAXI CONTINUED TO HANGAR.

Narrative: LOSS OF HYD PRESSURE CAUSED FAILURE OF BRAKES AND THE ACFT TAXIED OFF THE TXWY AT SLOW SPD. I REENTERED THE TXWY AFTER ENERGIZING THE STANDBY HYD PUMP, TAXIED TO OUR HANGAR WITHOUT FURTHER ABNORMALITY, AND CONTACTED MAINT. I SHOULD HAVE IMMEDIATELY STOPPED THE ACFT BY USE OF THE EMER BRAKE.

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.