What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
According to both mechanics statement, the flight crew that flew the aircraft into Las had advised constant aviation that the aircraft had as anti-skid and a hydraulic pump cycling problem that needed to be addressed by maintenance personnel. The maintenance personnel conducted a walk around then started the auxiliary power unit. This was when they observed a "low brake pressure/anti-skid" warning light that was flckering. They cycled the circuit breaker and started both engines but could not get the indication light to extinguish. They both checked the pedals several times and stated they had good pedal pressure and thought the light was related to the anti-skid problem and decided to taxi relocate the aircraft. After the mechanic advanced the throttles and once the aircraft was moving performed a brake check and realized he had no brake pressure and was unable to stop. He attempted to steer the aircraft to the right but the other mechanic was already applying brake pedal which concealed out his ability to sterr the aircraft. The aircraft hit two ford F350 vans.
As the FAA filed it
ACCORDING TO BOTH MECHANICS STATEMENT, THE FLIGHT CREW THAT FLEW THE AIRCRAFT INTO LAS HAD ADVISED CONSTANT AVIATION THAT THE AIRCRAFT HAD AS ANTI-SKID AND A HYDRAULIC PUMP CYCLING PROBLEM THAT NEEDED TO BE ADDRESSED BY MAINTENANCE PERSONNEL. THE MAINTENANCE PERSONNEL CONDUCTED A WALK AROUND THEN STARTED THE AUXILIARY POWER UNIT. THIS WAS WHEN THEY OBSERVED A "LOW BRAKE PRESSURE/ANTI-SKID" WARNING LIGHT THAT WAS FLCKERING. THEY CYCLED THE CIRCUIT BREAKER AND STARTED BOTH ENGINES BUT COULD NOT GET THE INDICATION LIGHT TO EXTINGUISH. THEY BOTH CHECKED THE PEDALS SEVERAL TIMES AND STATED THEY HAD GOOD PEDAL PRESSURE AND THOUGHT THE LIGHT WAS RELATED TO THE ANTI-SKID PROBLEM AND DECIDED TO TAXI RELOCATE THE AIRCRAFT. AFTER THE MECHANIC ADVANCED THE THROTTLES AND ONCE THE AIRCRAFT WAS MOVING PERFORMED A BRAKE CHECK AND REALIZED HE HAD NO BRAKE PRESSURE AND WAS UNABLE TO STOP. HE ATTEMPTED TO STEER THE AIRCRAFT TO THE RIGHT BUT THE OTHER MECHANIC WAS ALREADY APPLYING BRAKE PEDAL WHICH CONCEALED OUT HIS ABILITY TO STERR THE AIRCRAFT. THE AIRCRAFT HIT TWO FORD F350 VANS.