ML20072A747
| ML20072A747 | |
| Person / Time | |
|---|---|
| Site: | Harris  |
| Issue date: | 06/03/1983 |
| From: | Parsons R CAROLINA POWER & LIGHT CO. |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| CON-NRC-84, REF-PT21-83-999-000 10CFR-50.55E, PT21-83-999, PT21-83-999-000, NUDOCS 8306100238 | |
| Download: ML20072A747 (4) | |
Text
'a Q YO0 s
CP&L Carolina Power & Light Company A
c P. O. Box 101, New Hill, N. C.
27562 o
June 3, 1983 a
3g O %n N
[G N U3 CC 3,7, Mr. James P. O'Reilly NRC-84 United States Nuclear Regulatory Commission N
C*
Region II 101 Marietta Street, Northwest (Suite 3100)
Atlanta, Georgia 30303 CAROLINA POWER & LIGHT COMPANY SHEARON HARRIS NUCLEAR POWER PLANT 1986-90_- 900,000 KW - UNITS 1 & 2 WELD DEFICIENCIES IN UNIT 1 CHILLED WATER VALVE, PURCHASE ORDER NY-435176, ITEM 127
Dear Mr. O'Reilly:
Attached is an interim report on the subject item which was deemed reportable per the provisions of 10CFR50.55(e) and 10CFR, Part 21, on May 5, 1983. CP&L is pursuing this matter, and it is currently projected that corrective action and submission of the final report will be accomplished by September 1, 1983.
Thank you for your consideration in this matter.
Yours very truly, g
w&&
R. M. Parsons Project General Manager Shearon Harris Nuclear Power Plant RMP/sh l
Attachment cc:
Mr. G. Maxwell (NRC-SHNPP) l Mr. R. Prevatte (NRC-SHNPP)
Mr. V. Stello (NRC) l l
i ogg1M.'C[th.
8306100238 830603 PDR ADOCK 05000400 S
pyg f51Y 4
s I
l CAROLINA POWER & LICHT COMPANY SHEARON HARRIS NUCLEAR POWER PLANT-UNIT NO. 1 l
. WELD DEFICIENCIES IN UNIT 1 CHILLED WATER VALVE ITEM 127 I
l INTERIM REPORT i
r JUNE 3, 1983 1
REPORTABLE UNDER 10CFR50.55(e)~AND 10CFR21
.----w,,-r
--.,,,a,
---+vn-
.ee,=,mv,,.~v--w-,m-
-,ve---,,,,-ew,
.--,e-se--+r-nnw-,.,-,r-pi.--r-
'~.-
4 SUBJECT Shaaron Harris Nuclest Powar Plant Unit No. I 10CFR50.55(e) and 10CFR Part 21 reportable weld deficiencies in three-way chilled water valve purchased under Purchase Order NY-435176, Item 168
-ITEM-Deficiency and Disposition Report 1422; Valve 3CX-W25SB-1 was found to have vendor shop w'ld defects.
e SUPPLIED BY ITT Hammel Dahl, Warwick, Rhode Island NATURE OF DEFICIENCY In March 1983, the Quality Assurance Department, Shearon Harris Nuclear Power Plant, reported lack of penetration on the 7
I.D. of vendor shop welds in the above-referenced valve.
DATE PROBLEM OCCURRED Refer to the section above.
DATE PROBLEM REPORTED Chi April 7,.1983, Mr. K. V. Hate' notified the NRC (Mr. A. Hardin) of a potentially reportable item per the provisions of 10CFR50.55(e) and 10CFR Part 21.
The NRC l
was informed that an HVAC chilled water valve supplied by ITT Hammel Dahl was found to have shop weld deficiencies.
Failure of the valve could result in the loss of control room cooling.
On May 5, 1983, Mr. N. J. Chiangi notified the NRC (Mr. A. Hardin) that the April 7, 1983 potentially reportable item concerning shop weld deficiencies in an i
HVAC chilled water valve supplied by ITT Hammel Dahl was evaluated and found to be reportable per the provisions of 10CFR50.55(e) and 10CFR Part 21.
SCOPE OF PROBLEM The deficiency involves loss of safety-related chilled water.
SAFETY IMPLICATION Loss of safety-related chilled water could potentially
' jeopardize the allowable environmental operating temperature of certain safety components and the environment envelop of the main control room.
l.
I t
4 4
1 5
m
.m-
,___,.._,_._._..,,_y
-,-r,,.,.m.~._,,
g e,
v REASON DEFICIENCY
. IS REPORTABLE Failure of the valve could result in the reduction of cooling to Safety Train "B" Air Handling Units.
No means
'of automatic isolation in vicinity of deficiency; therefore, some "B" train is sacrificed.
Incorporating additional single-failure criterion (loss of Safety Train A), the environmental qualification of essential components could potentially be jeopardized due to exceeding the allowable operating temperatures.
CORRECTIVE ACTION.
Valve to be shipped back to the vendor for repair.
PREVENTATIVE i
MEASURE Preventative measures will be by ITT Hammel Dahl. Last vendor contact was on May 31, 1983.
An extension of time is requested to allow the vendor to complete preventative measures. Estimated date for receipt of preventative measures from vendor is August 1, 1983.
FINAL REPORT The final report will be issued af ter the valve has been repaired and preventative measures have been received from Hammel Dahl.
Projected final report date is September 1, j.
1983.
i i
b 4
.-e.,..
..-e-.
--r-----
-- -- --