Insurance court dismissed appeal when pension board failed to review start date of business activity.

The insurance court dismissed the appeal because the pension board incorrectly assumed the start date of the business activity was already definitively established by a separate compulsory insurance decision. The appellant argued that the pension board should have independently examined the validity of the start date despite the prior binding determination. The court ruled that the pension board's duty to review the start date was not fulfilled, necessitating a change in the decision rather than a dismissal of the appeal.