A 1/2 turn twist in the target flask hoist chain has been corrected to address a deficiency observed by inspectors by Gordon Crane. This was accomplished by first holding the flask door yoke at the top position using rope slings, then lowering the hook block spider approximately 6", then lifting the stationary end of the hoist chain approximately 2" using the Meson Hall main crane to make the top of the chain slack.
A missing cotter pin for the counterweight on the RH HC Lab overhead crane was also installed. |