ML20148K390
| ML20148K390 | |
| Person / Time | |
|---|---|
| Site: | Yankee Rowe |
| Issue date: | 12/12/1975 |
| From: | Autio H, Janet Staub YANKEE ATOMIC ELECTRIC CO. |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| RO-50-29-75-16, NUDOCS 8012040440 | |
| Download: ML20148K390 (4) | |
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CE CC T:;:.x, YAliliEE ATODiC El.ECTRIO domPAllY Rowe, Massachusetts 01367 yq,
, $NKEj
.Decaaber 12, 1975
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Mr. J. P. O'Reilly, Director
'T' U.S. Nuclear Regulatcry Cammission u
Office of Inspection and Enforcement Region I 631 Park Avenue j
King of Prussia, Pennsylvania 19406
Subject:
Reportable Occurrence 50-29/75-16 Excessive Leakage from Vapor Conta ner Trip Valve, TV-409
Dear Mr. O' Reilly:
In accordance with Technical Specifications, Section E.2.a.,
the attached Licensee Event Report is hereby submitted.
Very truly yours,
.Q[Cbry.f L bt' s
Herbert A. Autio Plcnt Superintendent JLSjb Enclosure cc:
(40) Director, Office of Ins,,ection and Enforcement U.S. Nuclear Regulatory Lrenission Washington, D. C. 20555 (3)
Director, Office of Management Information & Program Control U.S. Nuclear Regulatory Commission Washington, D. C. 20555
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- 14 15 25 28 30 31 32 CATEGORY 00Cx(T NUMBER EVENT DATE REPORT DATE o i COmr I I
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7 6 57 58 59 60 61 68-63 74 75 80 EVENT DESCRIPTION 7 89 l-o2 lDurina routine Tvne C Containment Isolatica Valvo Surveillance tnstinn nyeos :iva 80
.foTil lleakaae was detected from isolation valvo Tv-409. vanor containnr woatino system I
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@ l Return Heador Isniatinn Trin Valvo-This constitutes a violation of Technical j-7 89 80
@ ISoecification, Section E.2.a. (3) abnormal dearadation discovered in the primary l
7 89 80
$ Icontainment and is therefore reported as Reportable Occurrence 50-29/75-16 l
7 89 80 peg SYSTEM CAUSE COMPONENT COMPONENT COCf CODE COMPONENT CODE.
SUPPUER MANUFACTURER VOL.ATON
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44 47 48 CAUSE DESCR!PTION l The 4 inch. ASA150 Mason Neilan falve..siittina surfaco had dearaded ta A nnint tnMyj '
0 7 89 80
@ l excessive leakage.
The val.a was refurbished and retested satisfactorily.
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% POWER OTHER STATUS S OVERY DISCOVERY OF8sCRIPTON
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10 12 13 44 45 48 80 ACTIVITY CONTENT RELEASEO OF RELEASE l NA l
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AMOUNT OF ACTMTY LOCATON OF RELEASE
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10 11 44 45 80 PERSONNEL EXPOSUnES M tveER TYPE DESCRIPTON 1
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80 PERSONNEL INJUdiES NUMBER DESCRIP TON N l010l0l l
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7 89 11 12 80 OFFSITE CONSEQUENCES l
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1 7 89 80 LOSS OR DAMAGE TO FACILITY TYPE DESCRIPT ON H'
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7 89 10 80 PUDLICiTY l
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l 7 89 80 ADDITIONAL FACTORS E I l
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7 89 00 J. L. Staub pgggg; O L E M NAME:
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Decerrber 1,. 1975 9i e
U. S. Nuclear Regulatory Comission "i
Office of Inspection & Enforcement
't Region I M
631' Park Avenue King of Prussia Pennsylvania 19406 Attention:
Mr. J. P. O'Reilly
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Dear Mr. O'Reilly:
.j-Pursuant to the requirerents of the Technical Specificatio.ts i
Section E.2.a.(3), abnormal degradation discovered in the primary
. L i j containr.cnt is reported as Reportable Occurrence 50-29/75-16,.
During routine Type C, Containment Isolation Valve Tests, excessive leakage was detected from isolation valve TV-409. Vapor Container Heating System Return Header Isolation Trip Valve.
A 14 day Licensee Event Report will #ollow.
Very truly yours, 4
H. A. Autio Plant Superintendent NNS/.ib cc:
(2) Director, Office of MIPC U.S. Nuclear Regulatory Comission Washington, D. C. 20555 i
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5-NRC, LMSTp!BUTION FOR PART 50 DOCK ERIAL d
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CONTROL NO: 14013j i,
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FILE: IncIDEttr REPOR9 3
l FROM: Yankee Atomic Elec.Co.
DATE OF DOC DATE REC'D LTR TWX RPT OTHERl Rowe, Mass....
h.A. Autio 12-12-75 12-17-75 XXX TO:
OR.lG CC OTHER SENT AEC PDR XYY S NT LOCAL PDR XXX
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an CLASS ' UNCLASS
~ PROPINFO INPUT NO'CYS REC'D DOCKET NO:
l yyy 49 50-29 D FEC RIPTION'.
ENCLOSURES:
EErter trans the following.......
Licensee Event Repott # 75--16,.on 1.1-29-75 Concerning : cessive Lea.ka'ge:;from Vapor Containeep frip Valve......
40 Cys. Received)"
PLANT NAf4E: Yankee Rowe
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