ML20084U075
| ML20084U075 | |
| Person / Time | |
|---|---|
| Site: | Dresden  |
| Issue date: | 08/02/1972 |
| From: | Worden W COMMONWEALTH EDISON CO. |
| To: | Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| Shared Package | |
| ML20084U071 | List: |
| References | |
| NUDOCS 8306270044 | |
| Download: ML20084U075 (2) | |
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US ATOMIC ENERGY COMM '99 ROOSEVELT RD CLEN ELLYN ILL 60137 SUBJECT DPR25 DRESDEN NUCLEAR POWER STATIONS UtJIT 3.
THIS IS TO CONFIRM A CONVERS ATION WITH MR H D ANCE OF YOU OFF ICE AT 1010 HOURS THIS D ATE CONCERNING A F AILURE OF THE ISOL A R
INBOARD STEAM ISOL ATION V ALVE M03-1301-1 TO CLOSE DURING ROUTINE SURV EILL ANCE.
AT 1500 HOURS ON AUGUST 1972 RO UTD'E SURVEILL ANCE W AS.
BEING CONDUCTED ON THE HIGH STEAM LINE FLOW ISOL ATIONS SENSOR OF THE ISOL ATION CONDENSER THE BRE AKER FOR V ALVE M0 3-1301-1 TRIPPED, AS THE V ALVE ATTEMPTED T0 v.m, nee,
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9y CLOSE; THE TEST WAS REPEATED ONCE WITH SIMIL AR RESULTS. ALL SUBSEQUENT SURVIELL ANCE TESTS AND AT LEAST 5 MANUAL OPER ATIONS OF THIS V A WERE CONDUCTED SATISFACTORILY.
INVESTICATION IS UNDERWAY TO DETERMINE THE POSSIBLE CA MALFUNTION AND WILL DE REPORTED AS REQUIRED BY SECTIO TECHINIC AL SPECIFIC ATIONS.
W P WPRDEN SUPT DRESDEN NUCLEAR POWER STATION.
3 1010 M03-1301 -1 1500 1 19 72M03-1301-1 5 6.B.2 8306270044 720810 f
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