ML20087A062
| ML20087A062 | |
| Person / Time | |
|---|---|
| Site: | Bellefonte  |
| Issue date: | 02/29/1984 |
| From: | Mills L TENNESSEE VALLEY AUTHORITY |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| REF-PT21-84 NCR-2787, NCRX-2787, NUDOCS 8403070329 | |
| Download: ML20087A062 (2) | |
Text
_ _ _ _ _ _ _ _ _ _ _ _ -
~.
e TENNESSEE VALLEY AUTHORITY CH All ANOOGA TENNLb5EE 374U1 400 Chestnut Street Tower II
/N8 pjg,1I February 29, 1984 BLRD-50-438/84-12t BLRD-50-439/84-13 U.S. Nuclear Regulatory Commission Region II Attn:
Mr. James P. O'Reilly, Regional Administrator 101 Marietta Street, NW, Suite 2900 Atlanta, Georgia 30303
Dear Mr. O'Reilly:
BELLEFONTE NUCLEAR PLANT UNITS 1 AND 2 - ADAPTOR KEYWAY ON 8-INCH UORG-WARNER GLOBE VALVES - BLRD-50-438/84-14, BLRD-50-439/84 FIRST ENTEHIM REPORT The subject deficiency was initially mported to NRC-0IE Inspector P. E. Fredrickson on January 31, 1984 in accordance with 10 CFR 50.55(e) as NCR 2787 Enclosed is our first interim report. We expect to submit our next report by July 13, 1984. We consider 10 CFR Part 21 applicable to this deficiency.
If you have any questiors, please get in touch with R. H. Shell at FTS 858-2688.
Very truly yours, TENNESSEE VALLEY AUTHORITY Q $ bW
/st.L.M. Mills, Manager
/
Nuclear Licensing Enclosure cc: Mr. Richard C. DeYoung, Director (Enclosure)
Office of Inspection and Enforcement U.S. Nuclear Regulatory Cocmission Washington, D.C.
20555 Records Center (Enclosure)
Institute of Nuclear Power Operations 1100 Circle 75 Parkway, Su'te 1500 Atlanta, Georgia 30339 3403070329 B40229 PDR ADOCK 05000438 PDR OFFICIAL CdPY S
TL2 7 1 {
1983-TVA SOTH ANNIVERSARY L
An Equal Opportunity Employer d
il I
e
.l ENCLOSURE u
BELLEFONTE NUCLEAR PLANT UNITS 1 AND 2 ADAPTOR KEYWAY ON 8-INCH BORG-WARNER GLOBE VALVES i
BLRD-50-438/84-14, BLR3-50-439/84-13 NCR 2787 10 CFR 50.55(e)
FIRST INTERIM REPORT Descriotion of Deficiency During reassembly of an 8-inch Borg-Warner (B-W), Van Nuys, California, motor-operated globe valys (TVA Mark No. 3BWO420-CR-11),
the adaptor keyway was found to be 11/16 inch wide while the corresponding stem keyway was 1/2 inch wide. It is possible that the 3/16-inch alack in the keyway assembly may lead to mtsalignment of the shaft which could subsequently increase the load on the operating mechanism. A brief inspention of the other three valves with this TVA mark number has revealed that the wide keyway condition also exists in the additional valves. The valves with Mark No. 3BWO420-CR-11 are located in the essential raw cooling water (ERCW) system while similar type valves may be installed in the reactor building spray.
Interim Progress e
TVA has notified B-W of the deficiency and requested that B-W provide corrective action and identify any additional valves supplied to TVA which will require modification.
e l
l 1
R
.:*=.
.I
_. - -,