ML19221A194

Status Rept by Special Instrument Group Re Diagnostic Instrumentation.Rept to Be Updated Daily

ML19221A194
Person / Time
Site:	Crane
Issue date:	04/10/1979
From:	Ball R BABCOCK & WILCOX CO.
To:
References
NUDOCS 7905210001
Download: ML19221A194 (5)

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SIG DISTRIBUTION B&W - Trailer #26 April 10, 1979 Bob Long - Trailer #26 Ivan Porter - Met-Ed Op Vic Stello - (NRC

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(Trailer #7)

Milt Levenson - Bicg. #26 Cable Spreading Room h8 4G9i Ackermann - Bldg. #26 Attached is a status report by the Special Instrument Group on diacnostic ins trumenta tion.

Report will be updated daily.

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) age 1 SPECIAL INSTRUMENT GROUP - STATUS REPORT Date 9 April RMB Tire 2030

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.nstrumen t-Type Primary Function Who is location & Type Vital Signs Prior Action New or Class in Recovery Using of Indication of Health Pesults Action &

Perso c< >

omputer Backup TC readings Control Room Continued

1) Cable Avaif 3_ionel operation 39]e

2) Hookup

,3anda lPut en 2 multi-

' point

3) Spare core

, Ken ld 5chroe f er Ex Core Determine core Core evalu-Safety cabinets 0.C. current

1) Techs can now 1) How often

R.

'4.

Detect,,-

relocation a tion Resistance do does Tech Jall (greate.- than group. tant?

20 meg)

2) A test proce-Ask Milt dure was written i

( Z98 /,)

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~ 3% down BF counters Neutron indicator Control Room Recorder on one at Value and Discrininator ?.

Ask shif t to Acker-3 a time fluctuations gain checked

! record tmth bann Sub-criticality (plateau)

CF 's 3

40 c/s = 1 nvTh l i

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Page 2 SPECIAL INSTRUMENT GROUP - STATUS REPORT Date 9 Anril RMB Time 2030 (j,'

Instrument Type Primary Function Who is Location & Type Vital Signs Prior Action New or Class i

Recovery Using of Indication of Health Resul ts Ac tion Pe SPND Indicate lower part Core evalu-Computer printout Resistance great-Arkansas P&L Review by HDW Ack g

(Self-powered of corc is whole ation er than 10 on (Jim Poale) is of TCR mar neutron detectors )

good ones brinoinc in TDR Will do TC's then SFND's TC's Core top temperaturr Core Eval.

Two on strip charts Resistance con-

1) Duke is tak-

1) Compare DJke, (Thermocouples)

Redistribution Opera tors in S.R.

tinuity and ing some TC

& TM: for l

Control Room reasonable value resistance low resistance computer printout

2) Have resistors 2) Ackerrann from computer will show terminals and Milt to ground

3) What did TC's

3) 7F & 8F both do as a noisy function of pressure l

1 Movable incore Core integrity Core Eval.

Spreading Room Motion Went 3\\ ft. into (S.R.)

core in location' N-8 (3 ft. into fuel)

Solid stop Practically no change in curren,t-t>4 detector appears,

'i) wet and dead rs)

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Page 3 SPECIAL INSTRUMENT GROUP - STATUS REPORT Date 9 Arril RMB Tire 2030 j,

Instrument Type Primary Function Who is location & Type Vital Signs Prior Action New or Class in Recovery Using of Indication of Health Resul ts Action pg; Pressure and Indicate water Control Roor Control Room On-scale read-

1) Lost B OTSG level locatio, for coolinc ing fluctuations wide range level

2) Procedure written by utility to put in dP between FW fle'w and steam pressure

3) Have dP cell from Lynchburg.

4)Tapisoutsidell

5) Will do on both OTSG's Pressurizer level evel indicator Check all 3 to Ac!

p#2 indicated high cc~puter wit noise, then OK Sci Ir, one not powe - c ailey says de-ed?

owered last loncer i

I Pressure Have been heavi,*io fluctuation Still moniter j Sci

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ly irradiated When pump is off-ing of P5D's c

Ijj Foxboro (not boiling not c

guaranteed for pressure source ps;

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high radiation)

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Paqe 4 SPECIAL INSTRUMENT GROUP - STATUS REPORT Date 9 April RMS Tine 2030 Iif Instrument Type Primary Function Who is location & Type Vital Signs Prior Action New or Class in Recovery Using of Indication of Health Results Ac t ion s

pg, RTD Loop temperatures Control Room Computer printout T hot is coming Determine RTO $cSr out on log.

bridge avai!-

'er ability RTD's below flow nozzle Vent Header Pressurized to cleart Can we find up leak?

TC on Pressurizer Is being read Relief Valve on corputer?

l Seal Temperature What can trip primary pump and what has been disabled?

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