A final report on the accident will not be ready for weeks or months, he said.
She said the safety board will issue a report on the accident in the spring.
The board has not yet issued its report on the accident.
A spokeswoman for the company said she did not have any information on the accident late last night.
The board will not reach any conclusions on the accident for several months.
The background to the report was based on both non+nuclear and nuclear accidents.
He said it would be at least six months before the board released its findings on the accident.
Some of what they said bore directly on the accident.
Precise information was not immediately available on the other accident which officials said took place in the mid-1970's.
Officials would not comment on the accident in the yard.
