TXX-6868, Interim Deficiency Rept CP-86-51 Re Condition Cited at Another Nuclear Facility in Which Anchor Bolts Supplied by Hilti Do Not Meet Average Ultimate Tensile Loads.Initially Reported on 860717.Next Rept by 881012
| ML20236C744 | |
| Person / Time | |
|---|---|
| Site: | Comanche Peak  |
| Issue date: | 10/20/1987 |
| From: | Counsil W, Woodlan D TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC) |
| To: | NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM) |
| References | |
| CP-86-51, TXX-6868, NUDOCS 8710270317 | |
| Download: ML20236C744 (1) | |
Text
_
y
(\\.;
+
F
-USNRC-DS
-M Log- # Txx-6868-File # 10110 M100121 A D 16,-
'=
=
903.9 1
Ref- #10CFR50.55(e) 7t# ELECTRIC Wihm G CounsH mma, vue swan, -
October 20, 1987 1
1 V. S. Nuclear Regulatory Commission tAttn: Document Control Desk-Washington, D. C.
"'"55
SUBJECT:
COMANCHE PEAK STEAM ELECTRIC STATION (CPSES) l 00CKET NOS. 50-445=AND 50-446 ANCHOR BOLTS SUPPLIED BY HILTI SDAR:
CP-86-51 (INTERIM REPORT) i Gentlemen:
0nLJuly 17, 1986 we. verbally notified your Mr. I.!'Barnes of a deficiency involving a condition cited at another nuclear facility in which anchor bolts supplied by Hilti do not meet average ~ ultimate l tensile loads in certain sizes as published by the supplier.. This is an. interim report of a potentially reportable-item under the provisions of 10CFR50.55(e). Our latest interim report, logged TXX-6552, was submitted on July 8,-
1987.
A test procedure is being developed for. testing of the 1/2" diameter anchor bolts in CPSES-concrete to determine the ultimate tensile capacity.
The procedure is scheduled for-release in late October.
Upon completion of testing, the results will be' assessed to determine the impact of this issue upon;the safety of plant operations.
Our next report on this issue will be submitted no later than January 12, 1988.
i Very truly yours, aM. Q W. G. Counsil' By:
8710270317 871020 0
D. R. Woodlan DR ADOCK 050 4j5 Supervisor, Docket Licensing I
GLB/grr L
l L
c - Mr. R. D. Martin, Region IV l
ResidentInspectors,CPSES(3) l 9
l 74-h@
l
- on, s-un,
~,,... ~,an l
)