ML19220C567
| ML19220C567 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 04/06/1979 |
| From: | NRC COMMISSION (OCM) |
| To: | NRC COMMISSION (OCM) |
| References | |
| NUDOCS 7905110245 | |
| Download: ML19220C567 (18) | |
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a Meeting No. 2 (1700 Hrs., 4/5/79)
Item 1 - Venting Waste Gas in the Containment - Venting process being started.
"B" waste gas tank will be the first to be vanted.
(Note:
0800, 4/6/79:
valve problems; "A"
tank to be vented first)
Item 2 - Degassing - It is not planned to provide hyd rogen over-pressure in the makeup tank.
The I AG will make a recommenda tion re la tive to the need to take a primary system sample, based on latest information from NBC.
The robot is not trained to take a pressurized sample.
It is planned to use the robot to take an un.oressurized sample nopefully within the next 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.
(see Item 12) o Action - Levenson Item 3 - '.Testinghouse DHR - Preliminary Schedule for i r.s ta ll a t io n of D:iR to be provided by 4 P.M.
Friday, April 6,
1^79.
Ware-house for collecting needed equipment is to be at Three Mile Island site.
The sp3nt fuel area and cooling pumps are not to ce ased as part of the DHR unless absolutely necessary.
System must be available at the time plant goes to natural circula tion:
no later than five days frca ncw (4 /10/7 9).
Uestinghcuse to provide thatever redundancy and leak tightness that can be provided in the five-d 2y span.
Action - Westinghouse, Cobean I:an 4 - Pressurizer Level Instrumentation - failure.
Devalcp test procedure and cbtain NFC approval for alterna to scheres.
Action - Herbein I'_ n 5 - Definition of Safety Sj' stem - ;r. Cchean and Mr.
4cMil l an are to ecm.olete lists cf critical s.v s : e m s, considerinc, current operating node, ar.d provide to Dick.nlson.
Action - Cobaan and '4cMillan.
97 10 i April C,
1979!
Ice-,
- Additional Boiler Capacity - Confirm effect of continued steam dump to condenser assuming loss of vacuum.
Action - Wilson Item 7 - Long Term Cooling - Wilson, -:cMill a n, and Levenson to confirm proposed course of action by Friday, April 6, 1979.
Preparations, including engineering and procurament, to
.oroceed immediatelv.
Actual.olan t raodifica tions will ba authorized by Arnold and Cieckamp at a later day.
Confirm status of 10 mw diesel.
Action - Wilson, McMillan, Levenson, and Cobean (Diesel Status)
Item 8 - Site Evacuation - Gilbert Associates studying core unloadind for Unit 1.
(This will probably not be done)
Levenson to provide Herbein with description of what is to be looked at in terms of fire protection.
Mr. Stern and Mr. Arnold will make recommendaticns relative to plant configuation in case of Control Rcom evacuation.
URC will supply estimated nelt-through times based on current core condition.
NRC to investigate providing assioLance.
Action - Herbein, Stern, Arnold, and NRC.
Item 9 - Static Pressure System - B&R to proceed on stand pipe design and procurament.
IAG to make recom_.andation for alternate methcds of pressure and volume control.
Action - Cobean and Levenson Item 10 - DELETED Item 11 - Secondary.40difications - One 2,500 kw diesel gec.erator shipped Friday.
- .ay not ha sufficient; another should be obtained.
Action - Cobean Item 12 - Primary Coolant Sample - Actual capacity of robot and results of tests to date to be confirned.
Action _ - ifarbein Item 13 - Cconee Test - Test will not be conducted.
Item 14 - Added Emergency Power - See Item 7.
97
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April 6,
1979
. - r-Item 15 - Au..
Building Activity Levels - Frank Palme r to provide dafinitive recc.Tr.andanica ( caus tics, etc.)
for 9 A.M.
Friday r.orning.
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If negative pressuro approaches 2.0 PSI, investigate shutting ' tater flow t.
fan coolers.
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4/C/79 1100 hrc.
TMI RECOVERY BASE CASE SU.'nRY 9
~M/P Revision 1
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Degas at A; Lower Pressure ( A" A '
while dogassing, then return to A.
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(2)
Continue Design / Installation of static and active systems for primary makeup / pressure control.and-seco.dary cooling system for "3" S/G.
(3)
Enduca temperature (AaB) by steaming on "A" S/G (4)
Take "A" S/G solid - drop primary temp. to mini.um (3 '-C)
(5)
Trip RC Pump "A" - Establish natural convection -
Establish cooling to "B" S/G if available.
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Drop primary pressure to'sel.ected value ' '%
(C--D)
(7)
Take primary system solid - Control precsure makeup with static or new active system END POINT Primary - ::atural Cire, solid liquid, Long-term P/V Control Secondary - Solid water, Long-term Heat Dump System Approved for I.3 s u e :
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_ld'gstry Advisory Group 1_
Task CeSCri tion Priority status Lead Man 9
2 Levenson 1
.w-, s..--o,-
1,
- 3., 4
..n sa.- 10 worth ex-cos 're 2
Previde recommendation H
for alternative T.e t'.iod s of P/V ConiroA 3
Evaluate fire in H
Comolete CO T.: 31D r.en t i
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97 107
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PLANT OPERATIONS Task Cescription Priority Status Lead Man Procedure for re-H ducing containment vacuum 1D Verify let -down valve H
Miller alignment of make-up system lE Restore Pressurizer H
Shevlin Heater 2A nobot preceedure M
Miller 2B Cetermine urgency Herbein re c. t. for crimarv.
sample 3
Inprove TLD methods Gr a.ibar/
limit exposures H
3achofar 4
Determine source of H
Miller high Iodine-A3 ele-vator 6
Repair fitting on H
Iillar 5 7,.
make-up tank to reactor bldg.
~
11 Qualify 5 aen to H
L_.coth enter Aux. Eldg.
14 Clear scuth end M
Gunn earehouse 16 Design / Install filters M Gunn at vacuum pump dis-charge 19A Control /reca Island M
Limroth access 1st B
Security M
Stacy C
Fire fighting read-M Miller iness/proceedures 22A Davelop list of Plant M
liller changes B
Establish control rcom M diller change control log 23 Procedure for Plant con-H Miller nq dition upon evacuation Q./
gb U.cd a ce eme rc e nc.v. clan
/
Plant Operations m*Sh D e s o ~ *i e ~+ x on P ri o'n ; ~,!
Statug Le a d "r., D 15 Inst =1l portabla M
Cunn L..T system v
97 109 9
or - > A 1.m. D r.e t c. - v C, s-
.a.
-we Task D_e s crip tio:
Pricritv Status Lead Man 2
1085 Design temporary Cn schedule shielding covers ccmplete for DHR pits 4/7 1103 Evaluate line-up On Hold
(?)
to use one decay heat and one spray c um.o 1004 Get design for Ccmplete waste gas to Cont.
31dg.
1103 Review 3&W natural Cc=plete circulatica cooldctm proc.
19 Determine Aux. Sidg.
Cc;';1ete TV locations to acn-itor CHR compcnants (Mark up Generil'Arr.)
39 Previde electrical 30% on hold pcwar supply for cross sinca not need-connecting R3 with ed for 2 wks.
FH3 purge filters 45 Determine leakage paths Cc:,p le te Unit 2---Unit 1 52 D2 sign supports for JcEn Lue:na to Cond. H line to sur-arrive sits face ccn3Gnser H hot 4/7 with skatches CO-C-I3 to make it as cales seismically capable as feasiale 53 Investicate s c e n. l.y of Ccac.lete new charccal travs for Aux. purge in fuel handling syst.
56 Examine 15 diesel Intiated 4/4 generator to determint if 30P loads can be added 64 Review alternate Intiated 4/4 cooling source for secondary 31 \\\\D
Plant Modificati:ns Task Descriction Priority Status Lead an NG-1 Design new A3/F3 H
Done filter / structure WG-2 Instructions for decan Aux. 31dg.
usin~ cao-cun Ion u
exchange process TS-1 Recommend methods to improve relia-bility of implant electrical suu.ci.v TS-2 Dasian.cackac.e for H
secondary side cooling of S/GS TS-3 03sie.n cackase
.for use of sec-ondary services cooler TS
- Desica svstem for measuring water level in c o.n. *-, 4.- -. a. n..
TS-5
~Cavelop method
-or I2cCding Con-tainmen,t with
_v,o
.2 o _-
..-a-
.c-TS-6 Design systam for H
pressure make-up control of RCS 1C63 Design / procure Cceplete HEPA and charcoal filters for con-danser VP discharge 1064 Faview S/G cocl-Corplute dcun scheme for re-liabilty 1032 Recorrend portable Complete filters for Aux.
bldg. (location,
- }
g7 g
t.v.o e, o,cwer source,
/I etc.)
WASTE ENAGEMENT GROUP (COST'D)
TASK DESCRIPTION PRIORITY STATUS LE ADM A
Sample AS/FH Bldg. for filter H
McConnell replacement indicatiog acc-eptable operation.
Provide alternate set of M
McConnell filters Determine best solution 'o c
be used in Aux. Bldg. to main-tain acceptable iodine limits.
H McCcnnell Design Shield Wall at conden-M McConnell sate demineralizers 97
- 7.
1-
I?ASTZ ?TLACDE:rr CRCUP LIOUD '? ASTE Task Description Priority Status Lead F23
- 2 A3 G'O Filter Trains H
Under.ay S. Kraf:
311 Tan'< Inventory Status H
Underway I'cGoey - Plant Cpr.
023 Assess = ant CAP-GU'l systes H
Underway
- cGo ey - Tram e s
?l4 Arrangenant Study-F3 Contaminated I,'ater M
313 Flush System for A3 Cc ponents M
93 Dete =ine Leakage Paths frc= Unit 2 to Unit 1 L
-)l6 D/C Liquid !?astes Processing System Long Tem
?l9 A'ditive to Prim ry !ister Lcng Tem 321 Reactor 3uilding Stcp icvel :Masure ent Long Tem CAS WASTZ a
31 A3E 3 Filter Trains H
Caden;ay liirst/ D 0 e:S 94 Evaluate and Upgrade Cas Release l' itors H
Undar sy Yaet re.csh 95 Replace Charcoal Filters a
Under.ay Fa.rli:k/Fitrell sl5 D/C Ener;ency E3 Cas Furge Clean-Up Systen H
Und e r. cay S&R 97 Condensor GfE-C-as Discharge Filter M
Underisy Hirst 59 Freheaters to FH3 ' lent Filters M
310
? reheaters to EIB ' lent Filters M
7
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'G?r.RAL 91
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J20 Develop Waste Fanage ant Ca=e Plan Long Tem Palmer 024 Cr32 nice An Intei; rated,QA' cb F2diatica Sureey H
Le e /Pa lme r
TECENICAL SU?? ORT GROU?
TASK DESCRI?IIC:7 PRIORITY STATUS LEAD PJ.N 1.
Provide Additional boiler capacity 2.
Devel;p procedure for limitiig contain=ent vacuc=
3.
Evaluate need for backup EPI purp (Eydrolaser) 4 Provide esti= ate of required E?I flew for 200 to 2500 psi (degenerated state) 5.
Reconstruction of event 6.
Incienents for pressure decrease R
Conplete Devine 7.
.?cw to reasure rate of de;2s H
Devine 8.
- ncrease Letdo2n flow H
Devine 9.
Investigate the use of sample H
Devine line to desas 10.
Calculate E2 actor Ccolant System M
vailace spray flow 11.
Radiation menit5c systen M
Devine desensitication 12.
Construct brick rail at Unit 1
- .:cGucy EX Vault 13.
Frovide degener1tica procedures A. Fire in conteit +nt B. Fire in A=.iliary C. Fire in other areas D. Evacuation of control room E. Ereach of raste systens i *n
C)]
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PLANT MODIFICATIONS Task Description Priority Status Lead Man 65 Design caste Intiated 4/4 svstem for.ot_
down of R3 to fuel pool 63 Supports for H.S.
system in Turbine bldg. when filled (related to #52) 66 Location for secon-Assigned 4/4 darv.clant diesel 70 Max P&T for DHR Assigned 4/5-downstream of valve DH-V3 73 Sack-up Power Source Assigned 4/5 for secondary plant loads 74 Eavi2w fire protection Cccplete
- or cnaracal :_11ter Design / Fab / Install M
shield plugs at DH vau_3 :s 91 \\iS
B & W Task Description Priority Status Lead Man 1
Analysis of gas conc.
H in Primary system 2
Provide list of crt-H tical systems for present conditions 3
Analyze In-core H
thermocouples during LCEDN 4/6
/
4 Provide minimum allow-H able RCS pressure for degassing 5
Provide stress AnalysisM for generator (points StoC) 6 Determine minimum pri-M nary system pressure (point D, Base Plan) 7 Provide noise anayl-H sis or pressure curing cc:assinc 8
Document of sequ2nce L
of Plant conditions in base plan 9
Develop procedure to 3ccers determine pressuriner level using Heise Gauce s
10 Develop pcceedure for a m, n, - -
cooldcun using OTSG's
-.a on natural circulation 11 Core Anaylsis Program Rocers A.. Thermoccuples from Incores B
Neutron signals frca Incores c
Noise Levels 97 116 O
4/b//9 1100 Hrs.
n
- v. IOL, I._=.S
,e TASK Sl!AGEMENT/SCHEDUEL MEETING 0900 4/6/79 Action Party 1.
Establish Data Bank; identify cognizant person-Wilson.
inform R.
Arnold 2.
Provide list of activities in progress to F.
Stern Palmer Wilson 3.
Identify plannin cocrdinator Wilson Palmer Cobean 4.
Support for Base Plan, Rev. 1
- Determine minimum degassing pressure (Point A)
McMillan
- Continue design / installation of static & active Cobean make-up/ pressure.
- Design & install cooling system for "3" Sta. Gen.-
Cobean
- Stress analysis for Stm. Gen. (Points 3 to C)
McMillan
- Oetermine minimum primary system prcssure (Point D)
McMillan
- Alert Nof.se Analysis. Group; Determine reporting.
Wilson K:Millan Herbein 5.
Assure that at least one containment spray pump F.
Stern rerains available for at least the next.eek -
10 days.
6.
Need criteria for additional waste gas storage Palmer facility.
7.
Naed criteria for upgrading electrical supply system.
Cobean 8.
Locate additional air compressors.
Cchean 9.
Write administrative precedure.
Cobean 10.
Confirm status of upgrading current RHR System.
Westinghouse (Cobean) 11.
Consider hcw to develop required contingency plans; Stern
" flesh cut" Dageneration List.
Arnold 12.
Arrange for outside organization to do required Stern Safety Analysis.
Arnold 13.
Increase primary system boren concentration to Arnold 3,000 - 4,000 ppm.
Herbein 97 117
.