chevvron
There was no icing clearance in the Mk2 Release to Service on 2 June 1994. It had been removed in March 1994. The pilots used what had been in the previous issue, -4C. It was reinserted after the accident. This was an administrative error.
The calculated icing altitude was below safety altitude. The aircraft captain asked if he could breach this limit, and was told NO. The Board did not say who the officer he asked took the matter to (if at all) or what the reaction was.