ML19221A347

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Morning Rept for 790430
ML19221A347
Person / Time
Site: Crane 
Issue date: 04/30/1979
From:
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE)
To:
References
NUDOCS 7905210316
Download: ML19221A347 (1)


Text

. J MORNING REPORT 4/30/79 1.

DHR Upgrade - TV c ame r a s installed and opera'1c; accelerometers en pumps being installed.

2.

Auxiliary building supplemental filter train - calibration of monitors about finished.

Installation of frame and plate for isolation "7"~~

"i capability and connection to existing train expected shortly.

n.:u'_ _.

3.

Auxiliary building flow paths - supply f ans and additional exhaust 'f3ns' will be started to attempt to reduce airborne iodine levels (while still maintaining negative building pressure).

4.

Containment water level - new estimated at 5 feet (425,000 gallonsi.'

Source is leakage from comparent cooling system and safety valves and

~

~

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venting 'los se's"from the pressurizer.

5.

Su=p pumps Toth sump pu=ps inside containment are inoperable.

Some other means will have to be fou _d to remove sump water for cleanup.

6.

Tank farm in fuel pool - traks in place; welding of piping continuing.

7.

Heat balance by B&W; 4/2[/79:

Core Decay Heat 1.7 MW Pressurizer Heaters 0.3 MW

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Loss in Letdown 0.22 MW

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'~~ ~ Loss to Containment Air 0.05 MW Loss Due to Piping Underwater 0.1 MW Loss Irem Safety Valve Leakage 0.3 FM 2.0 MW 0.67 MW Calculated Reu, val by A Stm.

Gen.

1.3 MW 8.

The following attachments are included:

a.

Latest availabic system conditions and core map.

' ' ~b.

Hour 1'y'HFR -219 d,ata.

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_ _. _ Operability Status Instru=ent c._

d.

System / component operability status e.

NRC envircamental data f.

B&W heat balance Attach =ents:

As Stated cc:

R. Vollmer W. Mills 4)

S. Grimes J. Murphy R. Engelken Trailer #2 i

J. Collins 7905210 %

]59 272 c