What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
Pilot received a clearance to taxi from the FBO ramp along taxiways a to A1 and hold short for runway 26. As pilot approached A1, he applied brakes to slow down for the turn toward the runway 26 hold short line and the right brake failed to engage. Pilot tried to get the airplane to stop with only the left brake while continuing to try the right brake to see if it would engage which resulted in the aircraft veering to the left. As the pilot tried to turn back toward the middle of the taxiway the prop struck a taxiway light.
As the FAA filed it
PILOT RECEIVED A CLEARANCE TO TAXI FROM THE FBO RAMP ALONG TAXIWAYS A TO A1 AND HOLD SHORT FOR RUNWAY 26. AS PILOT APPROACHED A1, HE APPLIED BRAKES TO SLOW DOWN FOR THE TURN TOWARD THE RUNWAY 26 HOLD SHORT LINE AND THE RIGHT BRAKE FAILED TO ENGAGE. PILOT TRIED TO GET THE AIRPLANE TO STOP WITH ONLY THE LEFT BRAKE WHILE CONTINUING TO TRY THE RIGHT BRAKE TO SEE IF IT WOULD ENGAGE WHICH RESULTED IN THE AIRCRAFT VEERING TO THE LEFT. AS THE PILOT TRIED TO TURN BACK TOWARD THE MIDDLE OF THE TAXIWAY THE PROP STRUCK A TAXIWAY LIGHT.