ML17252A824
| ML17252A824 | |
| Person / Time | |
|---|---|
| Site: | Dresden  |
| Issue date: | 02/18/1975 |
| From: | Stephenson B Commonwealth Edison Co |
| To: | James Keppler NRC/RGN-III |
| References | |
| Download: ML17252A824 (1) | |
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res IPMBNGZ CSP 8159424449 TDBN MORRIS IL 02-18 0537P EST*
PMS J~MES G KEPPLER~ REGIONAL DIRECTOR DIRECT~RATE OPERATIONS REGION 3 U.S. ATOMIC ENERGY COMMIS$ION 9 799 ROOSEVELT RD
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SUBJECT:
DPR-25 DRESDEN NUCLEAR POWER STATION~UNIT 3.
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THIS WILL CONFIRM A CONVERSAtION WITH PHIL JO~NSON OF YOUR OFFJ~E AT~: ;
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~-**1 CJ 1530 HOURS THIS DATE CONCERNING DISCOVERY OF A LSAK!NG CONT~INMENT
.INERTING ISOLATION VALVE A03-1601-21 9 DURING ~OCAL LEAK RATE TESTINGo.AT THE ~IME, 1800 HOURS 2*14-75 UNIT~3 WAS OPERATING AT 396MWE. THE VALVE WAS BLIND PHLA~GED TO SEAL OFF THE PENETRATION BY ii 0500 HOURS ON 2*15-75. SUBSEQUENT INSPECTION qF THE VALVE WITH THE UNTT COLD SHUT DOWN ON 2-16-75 REVEALED THE S~AT TO BE CRACK[D.
SF-1201 (RS-69)
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~m.:ew*+***GiR*"<<&#*&t-r.=:n.<<tHWtu.,.w;,,--~:*WstftY+temp;~::f+t,w-o.. }~.:-;.p'lf--~}'i!SJfu:t..~£ih£~~~:W!fA1.:S.~$§rt}K~W:*'2*~~~~~1t;.:-1;y~r;~~ p '~ .:i. 1, INVESTIGATION IS IN PROGRESS TO DETERMINE CAU$E AND ADDITIONAL INFORMATION WILL FOLLOW IN A 10 DAY.REPORT 0 B B STEPHENSON SUPERINTENDENT DRESDEN NUCLENR POWER STATION 11 COMMONWEALTH EDISON co RR l MORRIS ILLINOIS 6d~so NNtH-J 'i I,, 'j ~ ~ ( SF*1201 (R5-69j i-E 8.:. 1.1Sl'i'5}}