TXX-4833, Interim Deficiency Rept CP-86-13 Re Computer Entry Error Which Could Invalidate Portions of Jet Impingment Load Review for High Energy Piping.Initially Reported on 860305. Next Rept Expected by 860703
| ML20205S048 | |
| Person / Time | |
|---|---|
| Site: | Comanche Peak  |
| Issue date: | 06/02/1986 |
| 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-4833, NUDOCS 8606110006 | |
| Download: ML20205S048 (1) | |
Text
r Log # TXX-4833 File # 10110 903.11 TEXAS UTILITIES GENERATING COMPANY SKYW AY T()WER e 400 NORTH OtJVE srrREET. L.B. S 8. DALLAS TEXAS 7830 8 June 2, 1986
.n%715?fa'A 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
SUBJECT:
COMANCHE PEAK STEAM ELECTRIC STATION 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 interim reports logged TXX-4753 and TXX-4807, dated April 4, 1986, and May 16, 1986, respectively.
Site engineering has reviewed all component shape factors whose jet loads were calculated using the PIPSCIN jet load program.
This review has concluded that of the 1353 components evaluated using PIPSCIN, 246 have
" shape factors" less than 1.0.
Only 174 components may have non-conservative jet loads. A complete review of these targets has begun and is scheduled to be completed by June 13, 1986.
We are continuing our evaluation and anticipate submitting our next report by July 3, 1986.
Very truly yours, 2
MW W. G. Counsil JCH/grr c - NRC Region IV (0 + 1 copy)
Director, Inspection & Enforcement (15 copies)
U. S. Nuclear Regulatory Commission Washington, D.C.
20555 8606110006 860602
[ 0 PDR ADOCK 05000445
%k, p 5VA S
PDR a n r s on or r xas vr e,,,, scr. c couranr