ML19263E947

RO 79-025/01X-0 on 790717:during Final Valve Lineup in Preparation for Plant Startup,Both Doors to Drywell Were Inadvertently Opened Simultaneously W/Coolant Temp 212 F. Caused by Failure of Latch for Inner Door.Door Sealed

ML19263E947
Person / Time
Site:	Pilgrim
Issue date:	07/17/1979
From:	Mathis C BOSTON EDISON CO.
To:	Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
NUDOCS 7907240257
Download: ML19263E947 (1)

Text

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BOSTON EDISON COMPANY TELECbPY MESSAGE i

To:

Date/ Time: July 17.197h 1500 Telephone Number-To: Director, Region I From: Pilgrim Nuclear Power 1tation Office of Inspection and Enforcement

.RFD #1 Rocky Hill Road U. S. Nuclear Regulatory Commission Plymouth, MA 02360 631 Park Avenue King of Prussia, PA 19406 Subj ect: PROMPT REPORTABLE OCCURRENCE Docket Number 50-293; License DPR-35 Mssigned LER Number 79-025/01X-0 Event

Description:

On July 17, 1979 while completing final valve line up in preparation for plant startup, both doors to the drywell were inadvertently opened simul taneously with coolant temp > 212 F.

This is in violation of Tech. Spec. 3.7.A.L.

Cause and Corrective Action't This event was caused by the latch for the inner door failine allowinn both door's to be opened sihultaneously. The inner door was secured and sealed and leak testing will be conducted.

.05

% Thermal MW Facility Status:

c) Routine Startup X

g) Shutdown

,d) Routine Shutdown h) Refueling e) Steady State

1) Other f) Load Changing j) Not Applicaple i

A written follow-up report will be sent within two weeks.

NRC person notified Mr. Caphton Prepared by Mr. C. J'. Mathis y

[

[g c

Mail (2) copies to:

Director Office of Management Information and Program Control U. S. Nuclear Regulatory Commission

~

Washington, D.C.

20555 7907240,757

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