ML20042C041

Ro:On 820312,during Reactor Startup,Keyswitch Discovered in on Position.Caused by Failure of Reactor Operator to Follow Established Shutdown Procedure.Operator Interviewed & Guidance Issued for Performing Reactor Checklists

ML20042C041
Person / Time
Site:	North Carolina State University
Issue date:	03/22/1982
From:	Bray T North Carolina State University, RALEIGH, NC
To:	Julian C NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
ADM-1-1-16-1, NUDOCS 8203300107
Download: ML20042C041 (2)

Text

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NORTII CAROLINA STATE UNIVERSITY AT HALEIGH i

l SC1100L OF ENGINEERING l

DI P ARTMI NT o, NUCtf AR [SCINI FRING March 22, 1982 l Noctran Ih scTun Panonni ADM l-1-16-1 Bos $636 ZsP 27c40 i

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Mr. Caudle Julian @  % YOi Project Inspector, Region II rs _  %

U. S. Nuclear Regulatory Ccanission [' ; .,m 101 Parietta Street, N.W. , Suite 3100 y2s j[-], .

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Atlanta, Georgia 30303 Docket No. 50-297 \ ,.

yll Facility License NodR-120-0 l

Dear Sir:

This letter is transmitted in pursuance to North Carolina State Univemity PULSTAR Technical Specification 6.7.2.c. and describes a Reportable Event (Abnormal Occurrence per our Technical Specification 1.17.f.).

At OGOG on 12 March 1982, when comencing a routine reactor start-up checklist, the reactor operator observed the console key in the key-switch and the keyswitch in the "ON" position. 'Ihe reactor was shut down (control rods fully down) and subcritical by the sans margin as would be expected under routine conditicns. At that initial step of the checklist procedum, the console keyswitch should have been "OFF" and the key removed. The Senior Operator who cane on duty at 0606/12

March 1982 reviewed the operating log and concluded that the console l keyswitch had been left "ON" since the preceeding reactor shutdown had l been perfonned, six (6) hours prior to the 0606/12 March 1982 discovery.

l 'Ihe reactor control roan was doubly locked, ac usual, and the facility intmsion alarm was properly set and arred. Hence the reactor controls were not accessible to the public.

'Ihe Reactor Operator who failed to turn off the keyswitch and re-move the console key was interviewed by the Reactor Manager and asked to describe the circumstances leading to the event. At the conclusion of the interview, it was determined that failure of the Reactor Operator to follow the established shutdown procedure was due to inattention on i the part of the Reactor Operator to the final steps of the shutdown pro-cedure.

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/O 8203300107 820322 PDR ADOCK 05000297 S PDR u

o Mr. Caudle Julion March 22, 1982 Page llo. 2 Cornctive masures have been taken to avoid further occurrences of this type being reported and they are:

1. Interview with the operator msponsible to determine khy the shutdown procedure was not followed in its entirety.

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2. Requalification lecture of all Reactor Operators and Senior Operators conceming the subject occurrence.

3. Issuance of PULSTAR Standing Order No.47 entitled Guidance for Performing Reactor Checklists.

An additional step to be accomplished toward eliminating a recurrence of the subject event will be to increase the intensity of the " Reactor On" sign in the reactor console. 'Ihis sign is illtninated when the reactor cccsole key is in the keyswitch and tumed "Gi".

Please contact me at (919)737-2323 should you desire addition informa-tien concerning this report.

Sincemly, A_ s.

'Ihomas C. Bray Reactor Operations Manager TC3/bwl cc: Mr. Jtmes R. Miller /

USNRC, Washington, D.C.

Dr. R. G. Cockrell, Director Nuclear Reactor Pmgram Department of Nuclear Engineering North Camlina State University c W

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