ML20217Q819
| ML20217Q819 | |
| Person / Time | |
|---|---|
| Site: | Millstone  |
| Issue date: | 08/29/1997 |
| From: | Schopfer D SARGENT & LUNDY, INC. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| 9583-100, NUDOCS 9709030373 | |
| Download: ML20217Q819 (20) | |
Text
_-
g Sus'ga
/y, u ncly '
L Don K. Schopfer Er'.2$$
August 29,1997 Project No. 9583100 Docket No. 50-423 Northeast Nuclear Energy Company Millstone Nuclear Power Station, Unit No. 3 Independent Corrective Action Verification Program United States Nuclear Regulatory Commission Attention: Document Control Desk Washington, D.C. 20555 I have enclosed the following nine (9) discrepancy reports (DRs) identified during our review activities for the ICAVP. These DRs are being distributed in accordance with the Communications Protocol, PI MP3 01.
DR No. DR-MP3-0011 DR No. DR-MP3-0035 DR No. DR-MP3 0043
- DR No, DR-MP3-0062 -
1 l
kh DR No, DR MP3-0063 DR No. DR-MP3-0065 DR No. DR-MP3-0067 DR No. DR MP3-0076 DR No. DR-MP3-0087 I have also enclosed the following four (4) DRs that have been determined to be invalid.
No action is required from Northeast Utilities for these four DRs. The basis for their -
invalid determination is included on the document.
9709030373 970829
^ocko5oo=3 yllLilLilli,14111111.1 55 East Montoe Street Chicago. it. 60603-5780 USA
- 312 269-2000
4 United States Nuclear Regulatory Commission August 291997 Document Control Desk Project No. 9583100 Page 2 DR No. DR MP3 0096 DR No. DR MP3 0103 DR No. DR MP3-0111 DR No. DR-MP3 0112 Please direct any questions to me at (312) 269 6078.
Yours very truly, 1.I e
D. K. Sc pfer
(
Vice President and ICAVP Manager DKS:spr Enclosures Copies:
E. Imbro (1/l) Deputy Director, ICAVP Oversight T. Concannon (1/l) Nuclear Energy Advisory Council J. Fougere (1/l) NU mNee9 wr\\97eev829a Aw-W
Northeast Utilities ICAVP DR No. DR MP3 0011 Millstone Unit 3 Discrepancy Report Rev6ew Group: Programmet6c DR VALlo Review Element: CorrectNo Acton Process g
p,gg
,gy,,
Diecipl6ne: Operstkris O va 06ecrepency Type: CorrectNo Acton M No System 9tocess: Rss NRC Significance level: 4 Date faxed to NU:
Date Pubinehed:
Duropency: Failure to implement or otherwise disposition Recommended Corrective Action in ACR # M3 96-0352 De*cript6 n: The Corrective Action Plan included in ACR # M3 96 0352 (Page 3 of form RP 4 7 ) does not address the Recommended Corrective Action (2nd sentence of block 6 of form RP 41) to determine "if heat exchanger was ever out of service". The results of such determination could bu reportable if an RSS heat exchanger was ever out of service when it was required to be operable and the associated LCO was not entered. Accordingly, the response to the ACR form 4 3 block 3 question,"Is the ACR reportable?" should have been checked as "Uncertaln" rather than "no" pending completion of the Recommended Corrective Action discussed above. The ACR documentation should include evidence that the Recommended Corrective Action was performed with results indicating that the issue is reportable or non reportable as the case may be; OR the ACR documentation should include justification why the Recommended Corrective Action is not warranted and was therefore not performed.
Review Val 6d inval6d Needea Date initiator: Neverro, Mark Q
Q Q
Br2297 VT Lead: Ryan, Thomas J Q
Q Q
8/2297 VT Mgri Schopfer. Don K O
O O
iv22S7 IRC Ctunn: Singh, Anend K O
O O
S27/97 Date:
INVALID:
Dele:
resol. Mil 0N:
Prev 60uely identifled by Mlf Q Yes it) No Review Acceptable Not Acceptable Nooded Date i m or: Navarro, M VT Le ed: Ryan, Thomas J VT Mgr Schopfer, Don K 1RC Chmn: Singh. Anand K Date:
SL Comments:
Printed &?a97 2452 PM Page 1 of 1
Northeast Utilities ICAVP DR No. DN-MP3-0035 Millstone Unit 3 Discrepancy Report Review aroop: opwn.one a u nion.nce ena Teemg DRvAuD Review Element: Operating Procedure Pdm opwebilMy issue D6mipsine: opwatione 4 y,,
Douropency Type: Licweng Docunent d g, System 9tocess: SWP NRC significance level: 3 Date faxed to NO:
Dale Published.
Douropency: Not all Service Water heat exchangers are included in the surveillance procedure per LER 90-020-00 Douristion: Licensing event report (LER) 90-020-00 dated July 16,1990 was issued as a result of both trains of Quench E> pray and High Pressure Safety injection being inoperable due to a deficient surveillance procedure. The corrective action section cf this LER stated in part... To prevent the recurrence, the surveillance procedure covering all Service Water System heat exchangers has been changed. When the established limits for a heat exchanger are exceeded the unit will be declarea inoperable and the appropriate Technical Specification Limiting Condition of Operations Actions Statement entered"...
Contrary to the above commitment. not all Service Water System heat exchangers are included in the applicable surveillance procedure. The applicable surveillance procedure is SP 3626.13, Service Water Heat Exchangers Fouling Determination, Rev 15, Change 1 with an effective date of April 1,1997. This procedure does not include any reference to or established limits for the following heat exchangers:
Containment Recirculation Heat Exchanger,3RSS*E1 A Containment Recirculation Heat Exchanger,3RSS*E1B Conta.nment Recirculation Heat Exchanger,3RSS*E1C Containment Recirculation Heat Exchanger,3RSS*E1D Post Accident Sampling Sample Cooler,3 SSP-SCL3 Review Valid Invetid Needed Date initiator: Spear, R.
O 0
0 6nS7 VT Lead: Queno. Robert E O
O O
sus 7 VT Mgt: Schopfer. Don K O
O O
S'25S7 IRC Chmn: Singh. Anand K O
O O
at:aS7 D.ie:
INVAllo:
Date:
RESOLUTION:
Previously identifled by NU7
(,,) Yes (el No Review c a cc a Date initiator: Spear. R.
O O
O VT Lead: Queno. Robert E VT Mgt: Schopfer. Don K IRC Chmn: Singh, Anand K Date:
Printed F2aS7 2.45.06 PM Page 1 of 2
Northeast Utilities ICAVP DR No. DR MP3 0035 Millstone Unit 3 Discrepancy Report SL Carments:
Pnnted 8/2997 2.45.14 PM Page 2 of 2
Northeast Utilities ICAVP DR No. DR4P3 0043 Millstone Unit 3 Discrepancy Report Rev6ew oroup: Programmate DMVAUD Rev6ew Element: Corrective Acton Process Diecipe6ne: operatene O ve.
06ecropency Type: Correcttw Acton
@) No systemerocess: SWP NRC signmcence lowl: 4 Date faxed to Nth Date Putsehed:
Diecrepency: Incomplete Corrective Action for ACR M3 96-0300 Deecription: During review of ACR M3 96-0360 it was noted that corrective actions did not address potentialimpact to operating procedures and other plant controlled documents.
The subject ACR describes a concem with insufficient detall in the FSAR to describe the Chilled Water system (3314F). The Initiator describes that 'in the event both chillers are disabled, the crosstles could be utilized to provide emergency cooling",
further stating that the Service Water system (3326) 'is actually cross tied in in 3 locations."
The corrective actions consist only of determining if an expanded description in the FSAR is warranted and initiation of an FSARCR If needed. No consideration was given to potential Impact to station operating procedures for utiliza'.lon of the emergency service water crossties. Procedures and other potentially impacted documents should be reviewed for adequacy as part of the corrective action process or if such review was already conducted and with no resultant impact, this should be documented somewhere in the ACR.
Note: It is recognized that the FSARCR process includes consideration of affected procedures and other documents, however, reliance should not be placed on a single process to ensure configuration control. Moreover, in this particular case, the FSARCR is only indicated in the corrective action as 'if needed". Accordingly, its generation along with consideration of potential impacts to other plant controlled documents to address the Initiatofs ' lack of detall" concem is not assured, For example, the actual evaluation of this concem when considered in light of all potentially affected documents might even result in the determination that additional FSAR detail is not warranted with direction instead to revise operator training lesson plans and procedures. This result would not be achieved under the present planned corrective action which only considers whether or not a change is required to the FSAR.
Review Valid invalid Needed Date inittetor: Navarro, Mark O
O O
sus 7 VT Lead: Ryan, Thomas J B
D O
SCS7 VT Mgr: Schopfer, Don K Q
Q Q
&t97 IRC chmn: Slngh, Anand K Q
Q Q
&'2&97 Date:
INVALID:
Pnnled IV2a97 2 48 34 PM Page 1 of 2
Northe:st Utilities IC.AVP DR Nr. DR MP3 0043 Millstone UnN 3 Discrepancy Report Date:
heSOLUTION:
Prev 6ounty ldaratted by WU7 O Yes @ 6e Review Y"
MC@*N W b'
itWator: Neverro, Mark O
O O
VT Lead: Ryan, Thomes J 0
0 O
viwer: schope., con x 0
-J G
me chmn: s %n,Ananax O
J G
Date:
st Commente:
t i
Pdnted &?a97 2.46 41 PM Pe 2 of 2
_ _ - - - _ = - _ _ _ _ _ _ _ _ _ _ _ _ _ _.
Northeast Utiliti.e ICAVP DR No. DR MP3 0042 Millstone Unit 3 Discrepancy Report nev6.w oroup: conr9areton DnVAuo Rev6ew Element: system irmtallaton p,,g g gyg,,,,
Diecipline: Electrical De6%rt Q y,,
D4ecrepency Type: Installetm impiernentaton 4 g, system?rocesst sWP NMC signmcence level: 4 Date f Axed Io NU:
Date Publithod:
D6 cr*Pency: Inadequate support of conduit 3CX763NA Deer.rtpuon: Cor.dult 3CX763NA is connected to 3JB 7525 and ends at instrument tray 3TX763N without a connection to the tray. This 8 foot long 4 inch d!ameter Vertical conduit is currently supported by one support, l'his conduit has no supports listed in TSO2 presumably since it is non safety related, However, there is a support within a foot of the JB, There is a support located approximately 6 feet above this one which appears to have supported this conduit in the past, but there is no strap for this conduit even though the spring nu' plates are in the strut channel as if it was once strapped to the support, This suppoit is not tagged but in the vicinity of the support, ES 1081 is written on the wall, Review Val 6d inval6d Nooded Date inMLetor: Server, T. L.
O O
O 677/97 VT Lead: Neri, Anthony A G
O O
S25S7 VT Mgr: Schopfer. Don K Q
Q Q
&T&S7 IRC Chmn: Singh, Anand K G
O O
- ?657 Deio:
INVALID:
Dele:
REs0LUTION:
Prov60uely identmed by NU7 C) Yes t No Review initiator: Sarver, T. L.
VT Lead: Neri, Anthony A O
,. O VT Mgr: Schc5 for, Don K IRC Chmn: Singh, Anand K g
Date:
sL Cormwnts:
Printed &7997 2.49 33 PM Page 1 of 1
Northeast Utilities ICAVP DR No. DR MP3 0063 Millstone unit 3 Discrepancy Report Rev6ew Group: conhgasten DR VALID Review Elemord: System Installaton Pdential Opermy leaue Diecipl6ne: Electrical Deegn O Yes D6ecropency Type: Instatisten impiomentaten rg) y, systemerocese: sWP
~
NRC sigt.sftcance level: 4 Date faxed to NU:
Date Publ6shed:
D6ecropency: Conduit Support Drawing does not reflect all attached conduits Deecript6on: Conduit support ES 135 has three safety related conduits attached and one lighting condult. The lighting conduit is unscheduled and field supported. The Conduit Support Log for Et$ 135 (drawing 12179 FSK ES 135 Rev. 2) with no outstanding change documents, does not included the lighting conduit in the tabulations of conduits, it does show the conduit in the section detail, however, the depiction of conduits has been previously noted as information only. Further, previously reviewed support drawings have included the lighting conduits in the tabulations.
The Electrical Installation Specification E350 (Section 3.5.12) indicates that lighting conduits shall comply with applicable requirements of the specification. The Specification (Section 3.1.3.11, item 5) requires that all non seismic conduit, which should include non essential lighting such as this, shall not be attached to tray hangers without engineering approval. Since the conduit is not shown on the support drawings, there is no evidence of this approval and it is, therefore, unclear if all support loads are correctly calculated.
ReV6eW Valid invalid Needed Dele initiator: Server, T. L.
Q O
O 8/27/97 VT Lead: Nerl, Anthony A Q
Q Q
67697 VT Mge Schopfer, Don K O
O O
$2SS7 IRC Chnwt: S6ngh. Anand K Q
Q Q
&7&97 Dele:
INVALID:
Date:
RESOLUTION:
Prev 60uely ident6 fled by NU7 C) Yes @ No Rev6ew Acc $ a AcceMa Date initiator: Server, T. L.
b b
b VT Lead: Nort, Anthony A O
O O
VT Mgt: Schopter, Don K IRC Chmn: Singh, Anand K Date:
sL Comnente:
Printed &?a97 2.51:17 PM Page 1 of 1
________--._--__..m
_m..
Northeast Utilities ICAVP DR N:. DR MP3 0065 Millstone unR 3 Discrepancy Report Rev6ew Group: Contguraton DR VALIO Review F.lement: System instellston PotWiel OperateMy heue Diecipline: Electr6 cal Dougn Q y,,
Diecropency Type: Inste.ston implementation r
(9) No systemProcese: $WP NRC s6pn6ficance level: 4 Date faxed to AU:
Date Puteshed:
D6ecrepency: Tray Support Location Drawing inconsistent with Field installation Descript6m: Drawing EE 34EM, Rev, 6, (M 5) shows two supports (0111 18 and.19) co located at the end of the tray run in the northeast comer of B Train RSS heat exchanger cubicle, There is only one support at this location. The G111 19 appears to have been inappropriately added to the drawing as part of a change control document incorporation.
Review Voi6d inved Nooded Date inulator: Server. T. L 9
O O
ar27/97 VT Lead: Nort, Anthony A Q
Q 8/2897 VT Mget Schopfer, Don K O
O O
e/2a97 IRC Chmn: Singh, Anand K Q
Q Q
8/26S7 Dese:
INVALID:
Date:
RESOLUTION:
Prov6ously ident6 fled t>y NU7 (,) Yes
(#1 No Rev6ew initiator: Server,T L VT Leed: Nort, Anthony A
]
vi u r: Senopter, Don K o
IRC Chmn: Singh, Anand K O
O O
Date:
st Conenents:
b Printed tv2297 2 53.32 PM Page 1 or 1
4 Northeast Utilities ICAVP DR No. DR MP3 4067 Millstone Unit 3 Discrepancy Report Review Group: Conhguretm DRVAW Rev6ew Element: system tretellate Diecipline: Electrical Doop potentialOperab6 tory leave Qy, D6ecropency Type: Installet6an implementetson
- 4) g, systemProcese: sWP NRC signiacance level: 4 Date faxed to NO:
Date Published:
06ecrepency: Conduit Attachment not Shown on Tray Supports DesertF* ion: 1. Conduits 3CX970PB and 3CK970PB are supported on tray supports G4000 33, G400 31, G400-29, G4006 26, and G400D-22 (3CX970PB only). The support detail drawing, EE 34JK Rev.
3, (J 5) does not show the connection of these condults nor provide any reference to the fact that conduits are supported from these supports.
- 2. Conduits 3CK767PE3,3CK970PB, and 3CC752PB are connected to tray supports G326A 44 and 45. There is no indication on the tray support detail or location drawing (EE-34JH Rev. 3,34EP Rev. 6) that there are any conduits attached to the supports.
- 3. Conduit 3CC752PB is attached to tray support G327-49 These is no indication on the tray support detail or location drawing (EE 34JH Rev. 3,34EP Rev,6) that there are any conduits attached to the supports.
- 4. An 1%* lighting conduit is attached to tray supports G305 38 and G306 39. These is no indication on the tray support detail or location drawing (EE 34JH Rev. 3,34EP Rev,6) that there are any conduits attached to the supports. The Electrical Installation Specification E350 (Section 3.5.12) indicates that lighting conduits shall comply with applicable requirements of the specification. The Specification (Section 3.1.3.11, item 5) requires that all non seismic condult, which should include non-essentiallighting such as this, shall not be attached to tray hangers without engineering approval. Since the conduit is not shown on the support drawings, there is no evidence of this approval and it is, therefore, unclear if all support loads are correctly calculated. Further, a 4 foot fluorescent light fixture is supported from the horizontal member connecting the two supports G305 38 and G306 39.
Rev6ew Valid invalid Needed Date mitletort server, T. L.
O O
O ar27/s7 VT Leed: Nort, Anthony A g
Q Q
&7&97 VT Mgra schopfer, Don K O
O O
52SS7 IRC Chnm: singh, Anand K O
O O
52SS7 Date:
INVALID:
cate:
RESOLUTION.
PNnt D i O'
Page 1 of 2
Northe:st Utilities ICAVP DR N3. DR MP3 0047 Millstone UnN 3 Discrepancy Report rm m -... _pyrour v res e rio Review ACC*Ptable Not Acceptetdo Needed Oste inellator: Swvw, T. L.
O O
VT Lead: Nort Anthony A O
O O
VT Mgr: Schopfer, Don K C
b 1RC Chmn: $1ngh, Anand K O
O O
w.:
SL Com.wdst o
e Printed 6%97 3.10 04 PM Pa N of 2
Northeast Utiittles ICAVP DR N. DR MP3 0076 Millston Unit 3 Discrepancy Report Rev6ew Group: system UR N Rev6ew Eternent: System Dee$n Potential Operabliny leaue Diecipl6ne: Piping Deslon
@ yee D6ecrepency Type: Celculeton C) go systemerocess: RSS NRC Signance level: 3 Date Faxed to NU:
Date Published:
Diecrepency: Max Operating Temperature Exceeds Allowable for Unsleeved Containment Penetrations 107 to 110 Deecrisn6on: In the process of reviewing the followirg documents, (l) Containment Recirculation Spray System (RSS) Stress Data Package, Calc. No. SDP.RSS 01361M3, Rey,4, Dated 5/29/97 (ii) Piping and Instrumentation Diagram, Low Pressure Safety injection / Containment Recirculation, Drawing No.12179-EM.
112C 16 Rev,16 (iii) FSAR Section 3.8.1.1.4, Steel Uner and Penetrations (iv) Design Criteria for Containment Uner Penetrations, NETM.
54, Issued May 1984 (v) Calculation No.12179-NS(B) 120 Rev. 2, CCN #9, ' Class 2 Unsleeved Penetrations' we noted the following discrepancy:
Background:
Based on the stress data package (I), under operating condition 7, the operating process temperature for lines 3 RSS-010 5-2 and 3-RSS-010-10 2 is 257 deg F. The corresponding pressure in these lines is 150 psig. This is an Emergency & Faulted condition which is described as follows. ' Containment Recirculation Pumps take suction from the Containment Recirculation Sump and discharge to the spray headers. A failure of one train of service water cooling to the Containment Recirc Coolers 3RSS*E1 A& C sesults in the affected RSS train
. (E1 A, C) discharging hot sump water (257 deg F) to the ring headers and the unaffected RSS train (E1B, D) discharging cooled sump water to the headers'.
l Since a failure of either train of service water (A or B) needs to be considered, the same operating condition of 257 deg F, and 150 psig needs to be considered for lines 3 RSS-010-20 2 and 3 RSS 010-9 2.
The P&lD (ii) shows that the four RSS lines penetrate i5e containment through Unsleeved penetrations marked 107,108, 109 and 110.
Based on the applicable section of the FSAR (111), Unsleeved penetrations consist of piping installed through the containment wall that is thermally cold, and the process pipe is welded directly to the reinforcement plate.
PrWed 67297 3.o2 s3 PM Page 1 of 2
Northeast Utilities ICAVP DR No. DRMP3 0076 Millstone Unit 3 Discrepancy Report Based on the design critefia for containment liner penetrations (iv), Unsleeved penetrations are used for thermally cold systems, where the operating temperature inside the process pipe is 200 deg F or less. Sleeved penetrations are used for all thermally hot systems, where the operating temperature inside the peneiration i
is more than 200 deg F.
^
Discrepancy:
~
The operating process temperature inside Unsleeved penetrations 107,108,100 and 110 under one of the Emergency 1
and Faulted conditions is 257 deg F. This exceeds the design criteria allowable temperature of 200 deg F for Unsleeved penetrations, Larger thermal expansion induced loads clue to the higher pipe-i penetration assembly temperature have not been addressed in the penetration quellfication calculation (v).
This discrepancy is classified as NRC Significance Level 3 because this condition may place the containment penetration outside the design basis, Review Val 6d invoind Needed Date init6ator: Prakesh, A.
O O
O 6'2SS7 VT Leed: Neri, Anthony A Q
Q Q
8,7&S7 VT Mor Schopfer, Don K G
O O
at2e/sr IRC Chmn: Singh, Anand K Q
Q Q
d/2e/97 Dele:
INVALlo:
Date:
RESOLUTION:
Prov6ously identified t>y NU? (_) Yes i No Review Acceptable Not Acceptable Needed Date p
VT Leed: Nort, Anthony A VTIngr schopfer DonK IRC chmn: Singh, Anand K
-o, SL Comments:
Printed 8/2S97 3 o3 01 PM Page 2 of 2
Northeast Utilities ICAVP DR No. DR MP3 0047 Millstone Unit 3 Discrepancf Report Rev6ew Group: Accewt Megaton DR VALIO Rev6ew Element: Change Process g
D6ecip66ne: 1 & C DeWgn Ow D6ectopency Typet Conculatban 4g systemerocem WA
~
MtC 66gniflcance level: 4 Date Faxed to MJ:
Date Published:
D6*ctopency: Discrepancy Between Vendor information and Des 6 n 9
Calculations Deecript6on: A review of MP3 documentation has concluded that a discrepancy exists with regard to the control room ventilation intake radiation monitor detector effir:lency used in the design calculation for system response time and the detector efficiency stated in the MP3 Radiation Monitor Manual. The documents reviewed in generation of this discrepancy report (DR) are:
- 1) SWEC Calculation UR(B) 448-0," Evaluation of Control Room Ventilation intake Monitor Response Time for Releases from U 1 or U 2",12/18/05
- 2) MP3 Radiation Monitor Manual, Rev 3 (pages 71 through 7 3)
The SWEC calculation is a design calculation that supports the determination of the time it takes the control room ventilation system Intake radiation monitors (?HVC*RE16 A&B) to sense a radiation level in the control room ventilation intake flow stream and generate a signal to isolate the control room. This function is necessary to protect the MF3 operators from LOCA events that might occur at MP1 and MP2, and MP3 design basis events that do not result in safeguards actuation. In the event of MP3 safeguards actuation, the control room ventilation would be automatically isolated by signals that start the safeguards systems. These events are described in Chapter 15 of the MP3 FSAR.
The SWEC calculation referenced above was supplied to the ICAVP Team in response to a project Request for Information (RFI) (ICAVP RFI 216. Item 4) that identified the specific document number for the calculation. The Radiation Manual excerpt was supplied in response to ICAVP RFI 216 Item 3 that requested the instrument setpoint calculation for Control Building inlet Radiation Monitors. 3HVC'RE16A (B).
When these documents were reviewed, the ICAVP Team noted that the SWEC calculation uses a detector efficiency of 4.7E07 CPM /uCl/cc, whereas the Radiation Monitor Manual Indicates that the value is 7.7E07 CPM /uCl/cc. The ICAVP Team concludes that use of the 4.7E07 CPM /uCl/cc value results in a conservative assessment of the capability of these monitors during design basis accidents at MP1 or MP2. Therefore, the ICAVP Team has confidence that, regardless of which detector efficiency is the correct value, the monitors are designed to function proper 1y during the specified design basis accidents.
Printed IV2R97 3 03 32 PM Page 1 of 2
Northeast Utilities ICAVP DR No. DR4P3 0087 Millstone Unit 3 Discrepancy Report The discrepancy relates to the control and use of vendor supplied design informatlon, and proper incorporatiori into the approprtTe MP3 design documentation. Because the two values were in disagreement, reconcillation is necessary and should be performed by NU.
During this review, the ICAVP Team searched the NU UIR database InfNmation for MP3 and did not find evidence that NU has identified these issues.
Review Valid invel6d Needed Dtte inallatort Bennett, L. A.
O U
O 625S7 VT Leed: Reheja, Raj D D
D D
aosS7 VT Mer Schopfer Don K O
O O
62SS7 IRC Chmn: $rgh, Anand K O
O O
62657 Deie:
IWALID:
Date:
RESOL UT*.ON:
- 7) No Previously identmed by NU? () Yee 9
Review Inteletor: Bennett, L. A.
VT Lead: Rehop, Raj D VT Mgr: Schopfer, Don K O
IRC Ctenn: Singh, Ahend K g
Date:
sL Comnente:
9 t>nnted &'2997 3 03A0 PM Page 2 of 2
Northeast Utilities ICAVP DR No. DR MP3 00M Millstone Unit 3 Discrepancy Report hv6ew Group: System DR INVALID Noview Element: system Desgn Pokntid Opermy im Dacipl6ne: Structural Desyn O va 06ecropency Type: Calculation (gj y, SystemProcess: QSs NRC Signinconce level: 4 Date faxed to NU:
Date Putdiahed:
D6ecrepancs.' Oner Pad Calculation Discrepancy Doocription: We hkve reviewed Liner Pad Calculation no.SEO VI.041, Rev.1.
Based on this review we have noted the following discrepancy.
- 1. The design loads utillzed for the qustification of Containment Liner Pad no PS$31 are based on the unreviewed pipe support and pipe stress analysis loads included in attachment B, page B3, There is no statement in the body of the calculations that Clear 1y resolves this issue or riccuments that approved stress analysis and pipe support loads do not differ from the ones used in this analysis.
Review Val 6d inval6d Needed Date initiatort Patel, A.
O O
O 6'AS7 VT Lead: Nort. Anthony A O
Q Q
W27/97 VT Mgri Schopfer, Don K O
O O
a/2s/87 NtC Chmn: Singh, Anand K O
O O
Dde:
8/2$/g7 INVAUD: This DR is considered invalid, Page B3 of the subject calculation contains the following statement: " Loads are confirmed by 10C from Steven O. Collins to John J. Pierro, titled
'QSS/RSS Pipe Support Liner Plate Load Confirmation', dated august 12,1996, and documented in master calculation 12179 NP(F) Z79D, Revision 2."
Date:
~
RESOLUTION:
Previously identmed by Nu? (,) Yes @ No Rev6ew initiator: Patel, A.
VT Leed: Nort, Anthony A VT Mgt: Schopfer, Don K IRC Chmn: Singh, Anand K
=
Dme:
SL Cormwnts:
Printed 17397 3 0413 PM Page 1 of 1
^
Northeast Utilities ICAVP DR No, DR44P34103 Millstone Unit 3 Discrepancy Report R. view oroop: sy DR wvAuD Review Element: System Des 6pn pgg 06ec6p66ne: Mechanical Deog" O Yee Discrepency Type: Conculaton 4 g, systemProcess: $WP NRC Sign 6acance level: 4 Date faxed to NO:
Date Published:
D6*crepancy: Motor heat loss from service water booster pumps (3SWP'P2NB)
Dimrtpt6on: Calculation P(B) 058 Rev.1 was reviewed to verify that the correct heat loss for the control building service water booster pumps (33WP'P2NB) was used in determining the ventitation i
requirements for the space. The following discrepancy was identified:
Per PDDS each pump motor has a 10 hp nameplate rating, 84.3% motor efficiency, and requires 7 bhp. Using the motor nameplate rating of 10 hp and 84.3% motor efficiency the load is 4,740 Blu/hr. Using the pump bhp requirement of 7 bhp and 84.3% the load is 3,318 Blu/hr. The calculation determined the load to be 4,500 Blu/hr based on a 10 hp motor.
This was classified as a level 4 since using the 7 bhp motor requirement would result is a load lower than that used in the calculation.
Rev6ew Valid inval6d Neohd Date inteletor: Stout, M. D.
O O
O e/:SS7 VT Lead: Nort. Anthony A O
O O
e/ ras 7 VT Mgr: Schopfer, Don K Q
Q Q
IRC Chmni Singh, Anand K O
O O
Dde:
8/28/97 INVAllO: While it is recognized that their is an error in the calculation,the discrepancy report is considered invalid slance the calculation result (heat load contribution to1tres) is conservative.
Date:
RESOLUTION:
Prev 60usly identtRed by NU? O Yes t#) No Revlow initiator: btout, M. D.
O O
O VT Lead: Nort, Anthony A VT Mgt: Schopfer, Don K lRC Chmn: Singh, Anand K
'=
g Deio:
SL Conwnents:
Pnnted 8/2S97 3 oc s4 PM Page 1 of 1
Northeast Utilities ICAVF DR No. DR MP3 0111 Millstone unit 3 Discrepancy Report Review oroup: Programmetc DR INVAllo Rev6ew Elemord: Cortocuve Action Process p
g D6ecipl6 net I & C Dengn Ow Discrepency Type: Calculeton gg System /Procoes: QSS NRC ligniecence level:4 Date faxed to NU:
Date Published:
D6ecrepency: Incorrect Significance Level and inadequate response to resolving the RWST Lo Lo Acceptance Criteria Descripuen: ACR # M3-96-0506 was give a Significance Level of *D" under RP4, Rev.2, yet during disposition it was determined that a Reportability Evaluation should be performed without upgrading the Significance Level.
While the Tech. Spec. does not identify an RWST Lo-Lo switch setting level for the surveillance requirement, the ACR disposition does not address the potential for cducing the negative Instrument error assuring adequate rnargin for stopping the RHR Pumps during switchover Additionally,it did not address the potential of lowering the tank level to the point of vortexing which would create a common rnode failure for both divisions of p!wr@s, thereby inOping the system. Reference UFSAR Section 6.2,6.3 and UlR 1008.
Rev6ew Valid inval6d Needed Date init6etor: Dombrowand, Jim O
Q Q
8/2tV97 VT Leed: Ryon. Thomes J
[
Q Q
67&S7 VT Mgr: Schopfer. Don K O
O O
IRC Chmn: Singh, Anand K O
O O
Date:
8/26/97 INVAllo: Performance of a Reportability Evaluation is not tied to the ACR's Significance Level, The Corrective Action eliminates switch setting confusion by vol.ng two of the three calculations and reevaluating the level setting inorder to provide justification for the Lo-Lo level setpoint, Reevaluation of the minimum level will determine the allowable limit and setpoint margin; thereby, mitigating the possibl!ity of permitting the tank's water level from dropping to the point of vortexing.
Date:
RESOLUTION:
Prov60uely identined by NU7 Q Yes it' No Review
^"#
intilator: Dombrowald, Jim O
O O
VT Lead: Ryan, Thomas J O
O O
VT Mgr: Schopfer, Don K IRC Chmn: Singh, Anand K
- e.
SL Comments:
Printed &7k97 3.o7.43 PM Page 1 or 1 1
._m____
l
t Northe:st Utilities ICAVP DR N2, DR MP3 0112 MillstDne Unit 3 Discrepancy Report Review Group: Progremnwx DR INVALID Review Element: Corrective AcJon Process Diecipline: I & C Design Ow
.Necrepency Type: Ucensing Docu e A
@ No
&> Scm/ Process: DGX
~
NRC signihe level: 4 Date faxed to NU:
Date Putf,thed:
Descrepency: Inadequate response to Diesel Generator annunciator issues.
==
Description:==
ACR # 012875, M3-96-0246 & 0247 address issues which potentlasty inop the Diesel Generator Annunciator While a pottintial fault in the local annunciator does not inop the diesel gerarator, the ACR's responses do not address the commitment in f.he UFSAR conceming common trouble annunciation in the Main Control Room, The MCR's trouble annunciators are fed from the local annunciator retransmitter; therefore, InOping the local annunciator means that the Control Room Annunciator is also InOped.
Review Valid invalid Needed Dete initletor: Dombrowski, Jim O
O O
ar2c/97 VT Lead: Ryan, Thomes J O
O O
ar2aS7 VT Mgr: schopfer, Don K O
O O
- A Chmn
- Singh, Anand K O
O O
Date:
8/26/97 INVALID: The Corrective Action's Reportability Assessment determines that even though the annunciator is in a Safety Related panel it is electrically seperate from the EDG and peiforms no safety function. Thdefore, potentially inOping the annunciator's retransmit circuit by connecting unisotrged non 1E inputs or non.
EQd equipment to the annunciator does not violats any licensing commitments.
Date:
RESOLUTION:
Previously identined by NU7 O Yes @ No Review initletor: Dombrowsid, Jim VT Lead: Ryan, Thomes J VT Mgr: schopfer, Don K IRC Chmn: Singh, Anand K Date:
SL Comments:
Printed 8729/97 3:o9:14 PM Page 1 of 1
- - _ _ _ _ _ _ _