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On May 9, 2001, Unit 2 was undergoing an o … On May 9, 2001, Unit 2 was undergoing an orderly shutdown as a result of the declared inoperability of D5 and D6 Diesel Generators (Unit 2 LER 01-03). At about 2006, with the reactor at 12% power, the turbine was manually tripped when 2A/2B Condenser differential pressure reached 2.5" Hg.</br></br>The reactor tripped automatically as a result of the turbine trip.</br></br>After the trip, vacuum continued to decrease in both condensers until vacuum was completely lost by 2047. After the vacuum loss, water was observed coming from the condenser air ejector discharge to atmosphere. Additional operator checks of the air ejectors noted water in the air ejector flowmeter, and that the 2B Condenser air ejector suction piping was hot while 2A Condenser piping was at ambient temperature. Actions were taken to drain the water from the air ejector discharge. At approximately 2243, condenser vacuum began a slow recovery without any significant operator intervention other than draining the discharge line. Vacuum was fully recovered by approximately 0945 on May 10.recovered by approximately 0945 on May 10. +
On May 9, 2001, Unit 2 was undergoing an o … On May 9, 2001, Unit 2 was undergoing an orderly shutdown as a result of the declared inoperability of D5 and D6 Diesel Generators (Unit 2 LER 01-03). At about 2006, with the reactor at 12% power, the turbine was manually tripped when 2A/2B Condenser differential pressure reached 2.5" Hg.</br></br>The reactor tripped automatically as a result of the turbine trip.</br></br>After the trip, vacuum continued to decrease in both condensers until vacuum was completely lost by 2047. After the vacuum loss, water was observed coming from the condenser air ejector discharge to atmosphere. Additional operator checks of the air ejectors noted water in the air ejector flowmeter, and that the 2B Condenser air ejector suction piping was hot while 2A Condenser piping was at ambient temperature. Actions were taken to drain the water from the air ejector discharge. At approximately 2243, condenser vacuum began a slow recovery without any significant operator intervention other than draining the discharge line. Vacuum was fully recovered by approximately 0945 on May 10.recovered by approximately 0945 on May 10. +
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