ML20084C290

Supplemental RO-76-12:on 760331,during Testing,Excessive Leakage Found in Containment Personnel Airlock Handwheel Shaft Seal.Corrective Action Include Placing Seal on Packing Gland Nuts to Prevent Rotation W/Shaft

ML20084C290
Person / Time
Site:	Ginna
Issue date:	05/25/1976
From:	White L ROCHESTER GAS & ELECTRIC CORP.
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20084C293	List: ML20084C290
References
RO-76-12, NUDOCS 8304070610
Download: ML20084C290 (1)

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q ROCHESTER GAS AND ELECTRIC CORPORATICN e 89 EAS T AVEt.*UE, ROCHESTER, fl.y.1 6 0 LtON D. WHlit JR Tet**eo%,

wectPpte Rt%1 m a t. a c O **e S162700 May 25,1976 Mr. James P. O'Reilly, Director U. S. Nuclear Regulatory Commission Office of Inspection and Enforcement Region I 631 Park Avenue King of Prussia, Pennsylvania 19406

Subject:

Supplemental Report on Reportable Occurrence 76-12, 30-day report, dated April 23, 1976 R. E. Ginna Nuclear Power Plant, Unit No.1 Docket No. 50-244 -

Dear Mr. O'Reilly:

On April 23, 1976 we submitted Reportable Occurrence 76-12, 30-day report, Containment Personnel Airlock Handwheel Shaft Seal Excessive Leak-age During Testing. In that report the statement was made that action to prevent a recurrence of that event was being investigated.

l This is to inform you that the corrective action planned is to place I

keepers on the packing gland nuts to prevent them from rotating with the shaft, precluding their loosening and permitting leakage through the packing.

These keepers will be installed at a future plant outage when the door assemblies can be dismantled for this maintenance.

1 In addition, procedure changes have been submitted to require as initial conditions that a mechanic verify proper seating of the packing gland I

nut prior to performing the applicable tests.

l Two additional copies of this letter are enclosed to conform to the original submittal of Reportable Occurrence 76-12, 30-day report.

Very truly yours ,

.Y *

• L. D. White, Jr. .

OdOd cc: Dr. Ernst Volgenau (30)

Mr. William G. Mcdonald (3) kDR O OOO 4 COPY SENT REGION S PDR

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