Caravan 208A
Flight Crew Multiengine; Flight Crew Commercial; Flight Crew Flight Instructor; Flight Crew Instrument
Flight Crew Last 90 Days 107.0; Flight Crew Total 1384.4; Flight Crew Type 7.3
Situational Awareness
Aircraft Equipment Problem Critical; Deviation / Discrepancy - Procedural Clearance; Deviation / Discrepancy - Procedural Published Material / Policy; Ground Event / Encounter Loss Of Aircraft Control; Ground Incursion Taxiway
Air Traffic Control Issued New Clearance; Air Traffic Control Provided Assistance; Flight Crew Took Evasive Action
Environment - Non Weather Related; Human Factors; Aircraft
After landing on Runway XXR at ZZZ I taxied onto taxiway 1.  Ground instructed to taxi to parking via [taxiway] 2 [and] 3. I read the instructions back and proceeded to 3 via 2. This flight was part of my IOE with a more senior company pilot who; out of habit; directed me to turn onto 1; which was closed by NOTAM. I assumed I must have been in error and turned. ZZZ's ground controller immediately intervened and corrected our improper turn.  I made a right 270 to continue down 2 to 3. The main incident occurred as I made the slight right turn to the SE Ramp from taxiway 3. The plane's turn radius to the right was too large and I noticed my left wingtip approaching a parked 53-foot trailer. I was already applying full right rudder with no brakes; and then I applied right brake pressure but the turn did not increase. Seemingly suddenly; the airplane pulled to the left and pointed the nose directly at the trailer.I then applied full brakes on both sides; but there was little or no braking. I applied full reverse thrust and it brought the plane to a full stop in a few feet. The plane stopped at approximately a 60-degree angle to the left of the intended direction on the taxiway center line. Me and the other pilot decided to shut down and exit the aircraft. The nose wheel was at the maximum left turn position after we were out of the plane.The plane is being inspected for any mechanical issues related to the gear and brakes.
Pilot reported a taxiway incursion and issues related to the aircraft's braking system.