Information Notice No. 84-55, Supplement 1: Seal Table Leaks at PWRs
… PWRs … SSINS No.: 6835 IN 84-55, Supplement 1 UNITED STATES NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND … under high-pressure conditions. These events occurred at Sequoyah 1 and Zion 1. INPO Significant Event Report (SER) … through the drivebox into the tube. During 1978 or 1979, plant personnel, to compensate for this difficulty, had …