The applicant union referred a grievance to arbitration.
The responding party employer failed to file a timely response, resulting in a default decision finding a violation of the collective agreement.
The employer subsequently requested reconsideration of the default decision.
The Board established a four-factor test for reconsidering default decisions under section 133 of the Labour Relations Act.
Applying the factors, the Board found that while the employer's explanation for the default was unreasonable, it had raised a substantial defence to the grievance and there was minimal prejudice to the union.
The Board granted the reconsideration request and directed the employer to file its response.