ML20082R014

Significant Const Deficiency Rept Re Defective Capstan Springs in Itt Grinnell Mechanical Shock Arrestors.Initially Reported on 831024.Springs Will Be Removed or Replaced & NDE Performed.Final Rept Expected by 840229

ML20082R014
Person / Time
Site:	Hope Creek, 05000355
Issue date:	11/23/1983
From:	Martin T Public Service Enterprise Group
To:	Murley T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
10CFR-050.55E, 10CFR-50.55E, NUDOCS 8312130014
Download: ML20082R014 (2)

Text

_ _ _ _ _ _ _ _ _ _ _ _ . _ _ _ _ _ _ _ _ _ _ _ _ _ - _ _ _ - _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ - _ _ _

'{}

fd-35r Thomas J. Martin Public Service Electric and Gas Company 80 Park Plaza Newark, N.J. 07101 201/430-8316 Vice President Engineering and Construction

{

November 23, 1983 Dr. Thomas E. Murley, Administrator U. S. Nuclear Regulatory Commission Office of Inspection and Enforcement Region I King of Prussia, Pennsylvania 19406

Dear Dr. Murley:

SIGNIFICANT CONSTRUCTION DEFICIENCY DEFECTIVE CAPSTAN SPRINGS IN SHOCK ARRESTORS HOPE CREEK GENERATING STATION On Octcher 24, 1983, a verbal report was made to Region I, Office of Inspection and Enforcement representative, Mr. E. M.

Kelly, advising of a potentially significant construction deficiency concerning defective capstan springs in mechanical shock ' arrestors supplied by ITT Grinnell. The following informa-tion is provided in accordance with the requirements of 10CFR50.55(e).

ITT Grinnell has advised-Bechtel Power Corporation, our Architect /

Engineer and Constructor, of a potential problem with defective capstan springs in sizes 1 and 3 mechanical shock arrestors supplied by Pacific Scientific, a sub-supplier of ITT Grinnell.

Several PSA-1 mechanical shock arrestors under test at Union Electric Callaway Station revealed broken capstan spring tangs.

Based en information supplied by ITT Grinnell, Bechtel has identified 101 suspect arrestors supplied to Hope Creek. To date, only three~of these arrestors have been installed. Bechtel has issued Nonconformance Report No.2701 to control the hardware and to document the corrective actions taken in response to the problem.

Our present plans call for the removal and replacement of the 8312130014 831123 PDR ADOCK 05000354 S PDR CF

'ji'l i o

w. -

Dr. T. E. Murley 2 11/23/83 suspect capstan springs on the affected shock arrestors. This will be done either at Pacific Scientific's facility or at the jobsite under the direction of ITT Grinnell.

ITT Grinnell will perform nondestructive examinations of the

. removed capstan springs *.o determine if any exhibit the defective condition. Our safety analysis will be based on these test results.

We anticipate completion of the above corrective actions by December 31, 1983. Giving adequate time for NDE and analysis of results, we-expect to provide you with a final report by February 29, 1984..

Very truly yours, cc: Office of Inspection and Enforcement Division ~of Reactor Construction Inspection Washington, D. C.

NRC Resident Inspector - Hope Creek P. O. Box 241 Hancocks Bridge, NJ 08038