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ACCESSION #:  9611210134

GRINNELL
CORPORATION                             ENGINEERED PIPE SUPPORTS

Precision Park
160 Frenchtown Road
North Kingstown, RI 02852

                                   November 18, 1996

United States Nuclear Regulatory Commission
Washington,
DC 20555

Attention: NRC Operations Center

RE:       Resolution of Interim Report Title 10 - Chapter 1
          10 CFR Part 21 Dated September 16, 1996

Gentlemen:

Grinnell has reviewed all customer design specifications for
environmental conditions related to Hydraulic snubbers. We found that,
except for the original incident with Duke Power, the Hydraulic Snubbers
shipped by Grinnell met the customers design specifications.  This review
covered the period from Year 1986 to present.

Since Duke Power has notified Grinnell that the snubbers supplied "are
operabLe as shipped", we have determined it is not necessary to file a
report under the rules of 10CFR Part 21.

Should you have any questions, listed below are the Grinnell contacts.

     *    David V.  Walshe - Quality Assurance Manager (401) 886-3030
     *    Stephen J. Perreault- Engineering Manager (401) 886-3040

                                   Very truly yours,
                                   Grinnell Corporation
DWW/gp
cc:  Part 21 EvaLuation Group
     D.  Curtin - G/NK
     B.  Doherty - G/Exeter        David V.  Walshe
     Duke Power Co.                Quality Assurance Manager

SALES/MARKETING          TECHNICAL SERVICES       ADMINISTRATION
PHONE (401) 886-3116     PHONE (401) 886-3015     PHONE (401) 886-3000
FAX (401) 885-4470       FAX (401) 886-3010       FAX (401) 886-3010

GENERAL INFORMATION or OTHER            EVENT NUMBER: 31009

LICENSEE: GRINNELL CORP,                NOTIFICATION DATE:  09/16/96
NORTH KINGSTOWN, RI                     NOTIFICATION TIME:  12:11 [ET]
     CITY:  NORTH KINGSTOWN REGION: 1   EVENT TIME       :  00:01 [EDT]

   COUNTY:                   STATE: RI  LAST UPDATE DATE :  11/19/96
LICENSE#                 AGREEMENT: Y
                                                  NOTIFICATIONS

NRC NOTIFIED BY:  DAVE WALSHE
HQ OPS OFFICER:   CHAUNCEY GOULD

EMERGENCY CLASS:  NOT APPLICABLE
10 CFR SECTION:
CCCC 21.21               UNSPECIFIED PARAGRAPH

                               EVENT TEXT

- 10CFR21 REPORT -

THE GRINNELL CORPORATION DISCOVERED DEVIATIONS ON A DUKE POWER
PURCHASE
ORDER FOR GRINNELL HYDRAULIC SHOCK AND SWAY SUPPRESSORS
(SNUBBERS).

THESE SNUBBERS HAD BEEN QUALIFIED TO ENVIRONMENTAL CONDITIONS
THAT VARY
FROM THE ACCIDENT ENVIRONMENTAL CONDITIONS CONTAINED IN DUKE
POWER'S
SPECIFICATIONS FOR THE MCGUIRE AND OCONEE PLANTS.  GRINNELL NOTIFIED
DUKE
POWER SO THAT THEY COULD PERFORM A SAFETY EVALUATION.  DUKE POWER
NOTIFIED GRINNELL THAT THE SNUBBERS ARE OPERABLE, AS SHIPPED.  THEY
ARE
CONTINUING FURTHER INVESTIGATION OF THESE SNUBBERS.

     ***UPDATE BY GRINNELL CORPORATION TAKEN BY MACKINNON ON 11/19/96
@
0950***

GRINNELL CORPORATION SENT THE FOLLOWING FACSIMILE UPDATING THE
ABOVE PART
21.

"GRINNELL HAS REVIEWED ALL CUSTOMERS DESIGN SPECIFICATIONS FOR
ENVIRONMENTAL CONDITIONS RELATED TO HYDRAULIC SNUBBERS.  WE FOUND
THAT,
EXCEPT FOR THE ORIGINAL INCIDENT WITH DUKE POWER, THE HYDRAULIC
SNUBBERS
SHIPPED BY GRINNELL MET THE CUSTOMER'S DESIGN SPECIFICATIONS.  THIS
REVIEW COVERED THE PERIOD FROM YEAR 1986 TO PRESENT.
"SINCE DUKE POWER HAS NOTIFIED GRINNELL THAT THE SNUBBERS SUPPLIED
"ARE
OPERABLE AS SHIPPED", WE HAVE DETERMINED IT IS NOT NECESSARY TO FILE A
REPORT UNDER THE RULES OF 10 CFR PART 21."

UPDATE SENT TO VERN HODGE

*** END OF DOCUMENT ***