ML20027D646
| ML20027D646 | |
| Person / Time | |
|---|---|
| Site: | Bellefonte  |
| Issue date: | 10/29/1982 |
| From: | Mills L TENNESSEE VALLEY AUTHORITY |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| REF-PT21-82 10CFR-050.55E, 10CFR-50.55E, NUDOCS 8211080196 | |
| Download: ML20027D646 (2) | |
Text
,_
i
~.k a
TENNESSEE VALLEY AUTHORITY CH ATTANOOGA. TENNESSEE 374ot 7
400 Chestnut Street Tower II October 29, 1982 3
BLRD-50-438/82-37 W,,
=5 z TJ ijO N
U.S. Nuclear Regulatory Commission Region II Attn:
Mr. James P. O'Reilly, Regional Administrator 2-101 Marietta Street, Suite 3100
,7 G5 Atlanta, Georgia 30303
]Z m
C-
Dear Mr. O'Reilly:
BELLEFONTE NUCLEAR PLANT UNIT 1 - FAILURE OF B.I.F. BUTTERFLY VALVE SEATS -
BLRD-50-438/82 SECOND INTERIM REPORT The subject deficiency was initially reported to NRC-0IE Inspector R. V. Crlenjak on May 11, 1982 in accordance with 10 CFR 50.55(e) as NCR 1819. This was followed by our first interim report dated June 8,1982.
Enclosed is our second interim report. We expect to submit our next report by February 16, 1983 We consider 10 CFR Part 21 applicable to this deficiency.
If you have any questions concerning this matter, please get in touch with R. H. Shell at FTS 858-2688.
Very truly yours, TENNESSEE VALLEY AUTHORITY L
L. M. Mills, Manager Nuclear Licensing 4
Enclosure oc:
Mr. Richard C. DeYoung, Director (Enclosure)
Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Washington, D.C.
20555 82110801 % 821029
~ ~ '
PDR ADOCK 05000438 l.- d d [
S PDR An Equal Opportunity Employer
- o o
Y ENCLOSURE BELLEFONTE NUCLEAR PLANT UNIT 1 4
FAILURE OF B.I.F. BUTTERFLY VALVE SEATS NCR 1819
~~
BLRD-50-438/82-37 i
SECOND INTERIM REPORT i
Description of Deficiency The following butterfly valves, manufactured by BIF, a unit of General Signal Corporation, West Warwicke, Rhode Island, which are used in the Essential Air System were determined to be leaking in excess of an acceptable rate.
~
BIF Serial UNID Number Mark No.
Contract No.
Item No.
Number 1RJ-VTAC-50B 3BWO471-00-20 76K38-86163-3 577 N-49445-10 1RJ-VTAC-44B 3BWO471-00-15 76K38-86163-3 576 N-49444-7 1RJ-VTAC-27A
-3BWO471-00-15 76K38-86163-3 576 N-49444-2 Further investigation revealed that the rubber seats had failed because of-
- damage, i.e., the seats were cut and portions were missing. The cause of the damage was not apparent.
Interim Progress TVA has not yet received BIF's response indicating their recommended disposition or a list of valves that could be subject to the cited deficiency. TVA will provide another report upon receipt of BIF's response.
4
-