What was found
(CAN) WHILE TAXIING AND TURNING ONTO THE RUNWAY, THE LT ENGINE POWER LEVER WAS ADVANCED TO FACILITATE THE TURN. AS THE THRUST LEVER WAS ADVANCED, THE LT ENGINE SUFFERED A ROLL BACK AND FLAME-OUT. THE AIRCRAFT WAS TAXIED CLEAR OF THE RUNWAY AND A FAULT ANALYSIS RELIGHT ATTEMPTED WITH NO SUCCESS. THE AIRCRAFT WAS THEN TAXIED TO THE RAMP WHERE A FURTHER RELIGHT WAS ATTEMPTED. THE RELIGHT WAS SUCCESSFUL. THE AIRCRAFT WAS THEN SHUT DOWN AND SURRENDERED TO MAINTENANCE FOR ACTION. THE EVENT FOLLOWED ACTION AND INSTALLATION OF SERVICE BULLETIN 30253.