TXX-4753, Interim Deficiency Rept CP-86-13 Re Computer Entry Error Which Could Invalidate Jet Impingement Load Review for High Energy Piping.Initially Reported on 860305.Gibbs & Hill Directed to Determine Adequacy of Calculations
| ML20202H993 | |
| Person / Time | |
|---|---|
| Site: | Comanche Peak  |
| Issue date: | 04/04/1986 |
| From: | Counsil W, Keeley G TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC) |
| To: | Johnson E NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| References | |
| CP-86-13, TXX-4753, NUDOCS 8604150505 | |
| Download: ML20202H993 (1) | |
Text
_ _
Log i TXX-4753 File # 10110 TEXAS UTILITIES GENERATING COMPANY BKYWAY TOWER. 400 NORTH OLIVE STREE"I, I.B. El
- EDALLAN. TEXAB 78201 April 4, 1986
=.w.
-@ 7m; r :ylO Mr. Eric H. Johnson, Director Division of Reactor Safety and Projects
,,jj J \\
U.S. Nuclear Regulatory Commission
'1 g -9 E
\\
611 Ryan Plaza Drive, Suite 1000 Arlington, TX 76012 I
-j g
SUBJECT:
COMANCHE PEAK STEAM ELECTRIC STATION L-
~
DOCKET N0. 50-445 JET IMPINGEMENT LOAD REVIEW SDAR:
Dear Mr. Johnson:
On March 5, 1986, we verbally notified your Mr. T. F. Westerman of a deficiency involving a computer entry error which could invalidate the jet impingement 10 1 review for high energy piping. This is an interim report of a potentially reportable item under the provisions of 10CFR50.55(e).
During the design verification process of the PIPSCIN jet load program, an error was found in the input instructions which produced loads on jet targets that were not applicable. The issue is applicable to Unit 1 only.
Currently, Gibbs & Hill has been directed to determine the adequacy of the jet load calculations. Corrective action will be implemented for jet loads determined to be in error.
We are continuing our evaluation and anticipate completion of our final report by May 16, 1986.
Very truly yours, M
W. G. Counsil By:
8604150505 860404 G. S. Kee ys
{DR ADOCK 05000445
- Manager, PDR Licensing JCH/grr c-NRC Region IV (0 + 1 copy)
Director, Inspection & Enforcement (15 copies)
U. S. Nuclear Regulatory Commission Washington, D.C.
20555 A DIVESION OF TEXAS UTELETIES ELECTRIC COMPANY
-