TXX-4807, Interim Deficiency Rept CP-86-13 Re Computer Entry Error Which Could Invalidate Portions of Jet Impingement Load Review for high-energy Piping.Initially Reported on 860305. Next Rept by 860613
| ML20198E428 | |
| Person / Time | |
|---|---|
| Site: | Comanche Peak  |
| Issue date: | 05/16/1986 |
| From: | Counsil W TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC) |
| To: | Johnson E NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| References | |
| CP-86-13, TXX-4807, NUDOCS 8605280003 | |
| Download: ML20198E428 (1) | |
Text
Log # TXX-4807 File # 10110 l
k TEXAS UTILITIES GENERATING COMPANY SKYW AY TOWER. 400 NORTH OLIVE STREET. L.B. A L. DALLAN. TEXA8 75301 May 16, 1986
.OM71?Sfn'.5 Mr. Eric H. Johnson, Director Division of Reactor Safety and Projects U. S. Nuclear Regulatory Commission 611 Ryan Plaza Drive, Suite 1000 Arlington, TX 76012 l
SUBJECT:
COMANCHE PEAK STEAM ELECTRIC STATION (CPSES)
DOCKET N0. 50-445 JET IMPINGEMENT LOAD REVIEW SDAR: CP-86-13 (INTERIM REPORT)
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 portions of the jet impingement load review for high energy piping. This is an interim report of a potentially reportable item under the provisions of 10CFR50.55(e). We have submitted an interim report logged TXX-4753, dated April 4,1986.
Gibbs & Hill conducted a study of the adequacy of the jet load calculations.
This study concluded that the jet load calculations are correct except for those components where a " shape factor" of less than 1.0 was used. Site engineering will review all component shape factors whose jet loads were calcu-lated using the PIPSCIN jet load program. After this review a schedule will be established to resolve any resulting non-conservative components.
We are continuing our evaluation and anticipate submitting our next report by June 13, 1986.
Very truly yours, f
W. G. Counsil JCH/arh c - NRC Region IV (0 + 1 Copy) l Director Inspection & Enforcement (15 copies) i U. S. Nuclear Regulatory Commission Washington, D.C.
20555 M N DO p
f 0
s l
A suvssuou or rexas vmmen usscrusc coursur L