ML20246A181

Requests Performance of Augmented Insp Team Review of Causes,Safety Implications & Associated Licensee Actions Which Led to & Followed Manual Reactor Trip During Natural Circulation Test at Facility on 890622

ML20246A181
Person / Time
Site:	Seabrook
Issue date:	06/27/1989
From:	Russell W NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
To:	Kane W NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
NUDOCS 8907060178
Download: ML20246A181 (3)

Text

_ _ _ _-__ _

v ,

l ,

JUN 2 71989 MEMORANDUM FOR: William F. Kane, Director Division of Reactor Projects FROM: William T. Russell Regional Administrator

SUBJECT:

AUGMENTED INSPECTION TEAM (AIT) - MANUAL REACTOR TRIP DURING NATURAL CIRCULATION TEST AT SEABROOK STATION UNIT 1 You are directed to perform an Augmented Inspection Team (AIT) review of the causes, safety implications, and associated licensee actions which led to and followed, both immediately and subsequently, the manual reactor trip that occurred during the natural circulation test at Seabrook Station Unit 1 on June 22, 1989. The inspection shall be conducted in accordance with NRC Manual Chapter 0513, Part III, and additional instructions in this memorandum.

i DRP is assigned responsibility for the overall conduct of this inspection. Jim Wiggins is designated as the Regional Team Manager and Peter Eselgroth as the onsite Team Leader. The Team will also inc1cde participants from the Division of Reactor Safety and from NRR.

OBJECTIVE The general objectives of this AIT are to:

a. Conduct a timely, thorough, and systematic review of the circumstances surrounding the June 22, 1989 event;

b. Collect, analyze, and document all relevant data and factual information i to determine the causes, conditions, and circumstances pertaining to the event, including the response to the event by the operations and technical support staffs and by licensee management;

c. Assess the safety significance of the event and communicate to Regional i

management the facts and safety concerns related to the problems identified; and to ,

i

d. Evaluate the adequacy of the licensee's internal post-trip review of the event.

' s OFFICIAL RECORD COPY HAVERKAMP 530 6/26/89 - 0001.0.0 t f

06/26/89 8907060178 890627

'{DR ADOCK 05000443 PDC

.g ..

~

Memorandum for William F. Kane 2 SCOPE OF THE INSPECTION The AITfresponse should identify and document the relevant facts and determine the probable causes of the event. It should also critically examine the licensee's response to the event. The Team Leader will develop and implement a specific, detailed inspection plan addressing this event upon his arrival onsite.

Ai a minimum, the AIT should:

a. . Develop a detailed chronology of the event;

b. Determine the root cause(s) of the event;

c. ' Determine the expected response of the plant during a transition to natural circulation cooling and compare it to the actual plant dynamic response observed during the event;

d. Assess the adequacy of the training and briefings provided by the licensee to its staff in preparation for the natural circulation test;

e. - Assess the adequacy of the responses of the operations and technical support staffs to the event;

f. ' Assess the scope and quality of the licensee's internal review of the event, including its initial (preliminary) and final (detailed) post-trip review; and,

g. Assess.the scope and quality of short-term actions and gather information related to the long-term actions intended to prevent recurrence of the event, including internal and external communication / dissemination of licensee-identified concerns and corrective actions.

SCHEDULE

~The AIT shall be dispatched to Seabrook Station so as to arrive and commence the inspection no later than 9:00 a.m. , June 28, 1989. A written report on this inspection will be provided to me within 3 weeks of completion of on-site inspection effort.

Ii 0FFICIAL RECORD COPY HAVERKAMP 530 6/26/89 - 0002.0.0 06/26/89 i

3 .,<

Memorandum for William F. Kane 3

)

TEAM COMPOSITION. i The assigned Team members are as follows-  !

Regional Team Manager -

James Wiggins, RI Onsite Team Leader -

Peter Eselgroth, RI Onsite Team Members -

Noel Dudley, Senior Resident Inspector James Trapp, RI Lambros Lois, NRR/SRXB Fred Guenther, NRR/LOLB Origial Sigrad By William T. Russell Regional Administrator cc:

S. Varga, NRR R. Wessman, NRR T. Martin, DRA.

S. Collins, DRP B. Boger, DRS '

Team Members I

ggp.[I  %"

DRP:RI .

Y pk DR ,

V DRP:RI W

DRP:RI Haverkamp J. W 6/27/89 6 ins .B g

r W(kR y g gi T. Martin W. Russell 6/J11 /89 0FFICIAL RECORD COPY HAVERKAMP 530 6/26/89 - 0003.0.0 06/26/89

\

___-_:__ _ _ - _ _ _ _ _ _ b