ML20084T738
| ML20084T738 | |
| Person / Time | |
|---|---|
| Site: | Dresden, Indian Point  |
| Issue date: | 10/24/1972 |
| From: | Worden W COMMONWEALTH EDISON CO. |
| To: | Greer B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| Shared Package | |
| ML20084T730 | List: |
| References | |
| NUDOCS 8306240081 | |
| Download: ML20084T738 (1) | |
Text
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SUBJECT DPR-25 DESDEN NUCLEAR POWER STATION UNIT 3 l
THIS WILL CONFIRM A CONVERS ATION WITH MR H D ANCE OF YOUR OFFICE l
AT 1100 HOURS THIS D ATE CONCERNING NO. 10FF GAS MONITOR BEING OUT OF C ALIBRATION ON 10-20-72 THE INSTRUMENT MECH ANICS WHILE MAKING A MONTHLY SURV ALANCE C ALIBRATION ON UNIT 3 0FF GAS l
MONITOR FOUND THE TRIP SETTING ON ONE MONITOR GREATER TH AN
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SPEC IFID) IN THE TECHNIC AL SPECIFIC ATIONS SECTIONS 3. 2.D. A 0F THE I
TECHNIC AL SPECIFICATION STATE THAT THE TRIP SETTING FOR SF.1201 (RS69)
MONITOR SHALL BE SET AT A V ALUE NOT TO EXCEED THE EQUIVIL ANT OF l
STACK RD. EASE LIMIT SPECIFIED IN SPECIFICATION 3. 8 THE STACK RELEASE LIMIT UNDER OPERATING CONDITIONS AT THE TIME WAS 0.7 CI/2ND 1EE TRIP SETTING ON NO. 10FF G AS MONITOR W AS FOUND TO BE 1.0CI/2ND THESE MONITORS DO NOT H AVE A HISTORY OF PREVIOUS FAILURES THE STATION WILL REVIEW THE PRESENT TRIP SETTING TO DETERMINE OF A LOWER LIMIT C AN BE USED W. P. UORD EN SUPT DRESDEN NUCLEAR POWER STATION COL DPR-2 5 3 1100 1 10-20-72 3 3. 2.D.1 3. 8 0. 7 CI/2ND 1 1.0CI/2ND s
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REGULATORY OPERATIONS, REGION III Indicent Notification By:
Coc:monwealth Edison Co. (Dresden 3) 50-249 Transmittal Date:
October 27, 1972 Distribution:
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