A CESSNA 402C ON MAINT TEST FLT DURING THE LNDG ROLLOUT THE ACFT PULLED SHARPLY TO THE L AND FELT AS IF BRAKES WERE LOCKED.

Narrative

ON THE MORNING OF MAY/THU/03; I WAS ASKED TO GO TO ZZZ BY MR X TO DO A MAINT TEST FLT ON AN ACFT HE OWNS. THIS ACFT HAD BEEN IN MAINT FOR A MONTH WITH MR Y. I AND FELLOW 402 PLT MR Z; ALONG WITH MR Y; DID A COMPLETE PREFLT INSPECTION ON THE ACFT. I WAS INFORMED BY MR Y THAT THE ACFT HAD MAJOR WORK DONE ON ENGS; NEW BRAKES; GEAR; AND SIGNIFICANT WORK DONE TO THE TAIL AREA DUE TO CORROSION ISSUES. AFTER DETERMINING THE ACFT TO BE AIRWORTHY; MR Y; MR Z; AND MYSELF TAXIED OUT FOR THE TEST FLT. VMC CONDITIONS WERE RPTED ON THE ATIS; BUT A RAIN SHOWER HAD PASSED JUST BEFORE TAXI SO THE RWY WAS WET. WE WENT OUT TO THE RUN-UP AREA AND WENT TROUGH THE PREFLT CHKLIST INCLUDING A RUN-UP ON THE ENGS WITH FULL PWR. EVERYTHING WAS NORMAL; SO WE TAXIED OUT AND INFORMED TWR AND GND THAT WE WERE STAYING IN THE PATTERN AND THE FLT WAS A PART 91 MAINT TEST FLT. TKOF WAS ROUTINE AND EVERYTHING WAS OPERATING NORMAL. WE NOTED A FEW MAJOR ITEMS TO BE CHKED ON THE GND. ONE THING NOTED WAS THE ACFT WANTED TO ROLL L AND MR Y NOTED HE WOULD CHK ALL CTL SURFACES AGAIN. APCH AND LNDG WERE NORMAL UNTIL ROLLOUT WHEN THE ACFT PULLED SHARPLY TO THE L AND IT FELT THE BRAKES WERE LOCKING UP. I WAS ABLE TO STOP THE ACFT ON PAVEMENT; BUT THE ACFT ROLLOUT AT THE LAST FEW SECONDS FELT LIKE WE HAD BLOWN A TIRE. I CALLED TWR AND TOLD THEM ALL WERE SAFE AND THAT WE HAD A BRAKING PROB. UPON EXITING THE ACFT; MR Y DETERMINED THE L MAIN SCISSOR HAD COME OFF THE BOLT CAUSING THE TIRE TO PRONATE TO THE L. MR Y CALLED FOR A TUG. THE ACFT WAS RAISED AND THE SCISSOR PUT BACK ON AND THE ACFT WAS TOWED BACK IN. POST INSPECTION REVEALED NO DAMAGE TO ACFT OR GEAR AND ONCE SOME OTHER ITEMS WERE LOOKED INTO; WE WERE GOING TO ATTEMPT ANOTHER TEST FLT. UPON RETURNING FROM LUNCH; MAINT WORKERS INFORMED ME GEAR WAS NOT DAMAGED; BUT CTL SURFACE INSPECTIONS WERE NOT DONE; SO TEST FLT WOULD BE RESCHEDULED.