Information Notice No. 88-75, Supplement 1: Disabling of Diesel Generator Output Circuit Breakers by Anti-Pump Circuitry
… Circuit Breakers by Anti-Pump Circuitry … UNITED STATES NUCLEAR REGULATORY COMMISSION OFFICE OF NUCLEAR REACTOR … Dump Valve 4/5/89 All holders of OLs Failures at Palo Verde or CPs for nuclear Units 1, 2, and 3 power reactors. …