IR 05000302/1995022
| ML20203B813 | |
| Person / Time | |
|---|---|
| Site: | Crystal River  |
| Issue date: | 01/16/1996 |
| From: | Gibson A NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | Mcnulty W NRC OFFICE OF INVESTIGATIONS (OI) |
| Shared Package | |
| ML20203B366 | List: |
| References | |
| FOIA-97-313 50-302-95-22, NUDOCS 9712150158 | |
| Download: ML20203B813 (1) | |
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NUCLEAR REGULATORY COMMISSION UNITEo STATES p
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S 101 MARIETTA STREET, N.W., SUITE 2900 o
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ATLANTA. oEoRGIA 303210190
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January 16, 1996 n*
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i MEMORANDUM T0:
William J. McNulty, Director i\\} d J
Office of Investigations f
FROM:
Albert F. Gibson, Director f
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Division of Reactor Safety 7 SUBJECT:
VIOLATIONS OF PROCEDURES CONCERNING MAKEUP TANK PRESSURE AT CRYSTAL RIVER NUCLEAR PLANT Our inspection, conducted December 11-15, 1995, has determined that operators apparently violated procedures on September 4,1994.
Excerpts from draft inspection Report 50-302/95-22 are included below.
On September 4,1994, Operators did not follow OP-402 instructions for adding hydrogen by manually bypassing the 15 psig hydrogen regulator. The applicable step in OP< 102 specifically required " ensuring MUT pressure limit is not exceeded." However, operators exceeded the Curve 8 MUT pressure limit during hydrogen addition. Operators also exceeded the administrative limits of OP-103B, Curve 8, for an extended period of time (about 43 minutes).
In addition, during this evolution, operators did not take timely action in response to the " MAKEUP TANK PRESS HIGH" annunciator.
Instead of reducing pressure to clear the alarm as required, operators reduced level (and pressure) which caured the Curve 8 limits to be exceeded by an increasing amount. Operators left the alarm in for about 43 minutes before venting the make-up tank to clear the alarm.
This is an example of apparent violation 50-302/95-13-01.
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