As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOR FLIGHT 4340 DURING TAXI THE CREW REPORTED THE CAPTAIN’S LEFT BRAKE PEDAL BOTTOMED OUT WITH NO RESISTANCE. THE AIRCRAFT WAS REMOVED FROM SERVICE. REMOVED AND REPLACED THE CAPTAIN’S LEFT BRAKE FEEL SPRING, EMB 145 AMM 27-21-03. THE BRAKES CHECK WAS GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE.