Incident Overview
During a landing, the first officer, who was flying from the left seat, touched down slightly left of the runway centerline. The check airman observed that the aircraft would not be able to exit at the intended taxiway and directed the first officer to reduce speed and continue to the next taxiway. The first officer then reported that his brakes were not functioning properly, and the airplane began to drift left. The check airman announced, 'I have the controls,' but was unable to apply his own brakes because the first officer was simultaneously applying brakes, which overrode the check airman's inputs.
Runway Excursion
The aircraft departed the runway approximately 200 feet from the end of the runway and subsequently collided with a taxiway light and a sign. No further details about the extent of damage or injuries were provided in the source.
Examination Findings
A subsequent examination of the brake system conducted by the airline's chief maintenance inspector revealed a broken return spring in the right master cylinder. Additionally, the Lock-O-Seal in the same cylinder was found to be leaking. These conditions likely contributed to the reported brake malfunction, although the source does not explicitly state causation.