ML20203N138

Submits Biweekly Status Rept for 860814-27.Reactor in Cold Shutdown for Maint for Entire Period

ML20203N138
Person / Time
Site:	Pilgrim
Issue date:	09/02/1986
From:	Strosnider J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
To:	Kister H NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
NUDOCS 8609230160
Download: ML20203N138 (4)

Text

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SEP 2 586 Docket No. 50-293 MEMORANDUM FOR: Harry Kister, Chief Projects Branch No. 1 FROM: Jack R. Strosnider, Chief Reactor Projects Section IB

SUBJECT:

PILGRIM STATUS REPORT FOR THE PERIOD AUGUST 14, - AUGUil 27, 1986 Enclosed is the Pilgrim bi-weekly status report from the NRC Resident Office at Pilgrim. Two NRC Resident Inspectors monitored routine activities at the plant during the report period. The reactor remained in cold shutdown throughout the period for maintenance.

These status reports are intended to, provide NRC management and the public with an overview of plant activities and NRC inspection activities.

r Subsequent inspection reports will address many of these topics in more detail.

Original Signed By Jack R. Strosnider, Chief Reactor Projects Section IB

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l OFFICIAL RECORD COPY PILGRIM WEEKLY STATUS REPORT -

11/29/80 IE3i

6 cc w/ encl:

T. Murley, NRC, RI R. Starostecki, NRR, RI S. Ebneter, NRC, RI T. Martin, NRR, RI J. Partlow, NRC, IE W. Kane, NRR, RI J. Zwolinski, NRC, NRR J. Lydon, Chief Operating Officer, BECO L. Oxsen, Vice President, Nuclear Operations, BECO A. Pedersen, Station Manager, BECO Paul Levy, Chairman, Department of Public Utilities Chairman, Board of Selectmen J. D. Keyes R. Bowlay Plymouth Civil Defense Director Senator Edward P. Kirby Representative Peter Foreman S. M. Pollard M. Conyngham M. R. Jeka K. R. Anderson Public Document Room (PDR)

Local Public Document Room (LPDR)

Nuclear Safety Information Center (NSIC)

NRC Resident Inspector '

Commonwealth of Massachusetts (2)

, bec w/ encl:

j Region I Docket Room (with concurrences) l Management Assistant, DRMA (w/o encl)

DRP Section Chief W. Raymond, SRI, Vermont Yankee l T. Shediosky, SRI, Millstone 1&2 i

H. Eichenholz, SRI, Yankee P. Leech, LPM, NRR PA0(2)

RI:DRP j; Strosnider/grm C 8/2p/86 l

OFFICIAL RECORD COPY PILGRIM WEEKLY STATUS REPORT -

11/29/80

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e ENCLOSURE

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PILGRIM STATUS REPORT FOR THE PERIOD AUGUST 14, - AUGUST 27, 1986 1.0 Plant Status As of 8:00 a.m. on August ~ 27, 1986, the reactor was in cold shutdown with-the reactor coolant temperature at about 120 degrees Fahrenheit.

2.0 Facility Operations Summary The plant has been shut down~for maintenance, and to make program improvements since April 12, 1986. An announcement made by Boston Edison on July 25, 1986 indicates that the present outage will continue until early 1987 and will include refueling of the reactor.

3.0 Items of Special Interest Standby Gas Treatment System Design Problem I An Emergency Notification System call was made on August 21, 1986, when the licensee identified a potential design deficiency in the standby gas treatment (SBGT) system. In the event of an accident, the SBGT system processes the reactor building atmosphere to remove radioactive iodine and particulates prior to release through the main plant stack. The SBGT system has two filter trains which are cross connected. Boston Edison Engineering personnel identified that if one of the trains is assumed to be ineffective during an accident, the potential exists for a percentage of the reactor building exhaust flow to pass through the inoperable train to the main stack without being processed. This could result in higher radioactive release rates. An inadvertent actuation of the fire deluge system in one of the filter trains is one postulated way that a filter train could be rer.dered ineffective. The acceptability of the system design is under review.

Failure to Perform Nitrogen Make-Up Monitoring Required by Technical Specifications

, An Emergency Notification System call was made on August 15, 1986, when the licensee identified that monitoring of the primary containment inerting system makeup flow rates had not been conducted as required by technical specifications. During operation the primary containment atmosphere is inerted with nitrogen. A system is in place to add nitrogen to the containment as needed. Technical specifications require that the amount of nitrogen added be monitored to provide indication of any large increase in containment leakage. Instrumentation used to perform this monitoring had been out of service since January, 1985, and as a result the technical specification requirements were not met.

OFFICIAL RECORD COPY PILGRIM WEEKLY STATUS REPORT -

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Local Leak Rate Testing The local leak rate test program started on' April 12, 1986, continues.

Tests completed through August 27, 1986 include 96 of approximately 101 type B components with 2 failures. In addition,124 of approximately 133 type C components have been tested with 15 failures. No failures were identified during this report period.

Unsubstantiated Bomb Threats Received at Pilgrim On August 24, and again on August 27, 1986, information from anonymous individuals was received stating that bombs had been planted at Pilgrim station. Appropriate security measures were taken. Searches revealed no evidence to substantiate the claims. The FBI was notified regarding the events.

4.0 NRC Staff Status during the Period Two NRC Resident Inspectors monitored plant activities between August 14, and August 27, 1986. The resident inspector. staff at Pilgrim during the report period consists of the following:

Martin McBride, Ph.D. --- Senior Resident Inspector Jeffrey Lyash --- Resident Inspector 0FFICIAL RECORD COPY PILGRIM WEEKLY STATUS REPORT -

11/29/80