ML20084L870
| ML20084L870 | |
| Person / Time | |
|---|---|
| Site: | Dresden  |
| Issue date: | 06/04/1974 |
| From: | Stephenson B COMMONWEALTH EDISON CO. |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| NUDOCS 8305240112 | |
| Download: ML20084L870 (3) | |
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'03230 TDVE MORRIS IL 117 06-04 215P CDT
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iM'bT SUBJECT DPR-25, DRESDEN NUCLEAR POWER STATION UNIT 3.
..--. w:+JONVERSATION WITH F. MAURA OF YOUR THIS WILL CONFIRMATION 4
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OFFICE AT 1330 HOURS THIS DATE CONCERNING AN APPARENT FAILURE OF THE (D) MAIN STEAMLINE HIGH RADI ATION MONITOR DISCOVERED DURING WEEKLY SURVEYLANCE TESTING.
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MAIN STEAMLIN~ HIGH RADIATION MONITOR FAILED TO TRIP WHEN
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A SIMULATED HIGH RADIATION SIGNAL WAS INJECTED.
AN-INVESTIG ATION IS CURRENTLY UNDERWAY TO DETERMINE IF IT IS A MONITOR-FAILURE OR MERELY A FAILURE.' 0F THE TEST CIRCUIT-ADDITIONAL DETAILS AND-THE RESULTS OF THE INVESTI0ATION WILL BE FORTHCOMING IN THE FORM OF A 10 DAY LETTER IN
'ACCORDANCE WITH SECTION 6.6.B.I. A 0F THE TECHNICAL SPECIFICATIONS.
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