IR 05000423/1984024

Insp Rept 50-423/84-24 on 841105-09.No Noncompliance Noted. Major Areas Inspected:Preoperational Test Program,Including Requirements & Implementation,Test Procedure Reviews,Test Results Evaluation & Test Witnessing

ML20140E461
Person / Time
Site:	Millstone
Issue date:	12/24/1984
From:	Bettenhausen L, Gesalta L, Nicholas H NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
To:
Shared Package
ML20140E458	List: IR 05000423/1984024 ML20140E455
References
50-423-84-24, NUDOCS 8501110043
Download: ML20140E461 (8)

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U.S. NUCLEAR REGULATORY COMMISSION

REGION I

Report N /84-24

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Docket No. 50-423 License No. CPPR-113 Priority --

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Category B Licensee: Northeast Nuclear Energy Company P.O. Box 270

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Hartford, Connecticut 06101 Facility Name: Millstone Nuclear Power Station, Unit 3 Inspection At: Waterford, Connecticut Inspection Conducted: November 5-9, 1984

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Inspectors: Y- -

O d H. H. Nicholas, Lead Reactor Engineer /date / '

Y h?/h2hf L. S. Gesalta, IAEA, Observer date Approved by: [Me E. H. Bettenygfisen,/ Chief

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date Test Program Section

' Inspection Summary:

Inspection on November 5-9, 1984 (Report No. 50-423/84-24)

Areas Inspected: Routine, unannounced inspection of the preoperational test program including requirements and implementation, test procedure reviews, test results evaluation, test witnessing, auxiliary boiler repair and testing, preparations for steam generator hydrostatic testing, quality assurance and quality control, and tours of the faci.lity. The inspection involved 29 hours3.356481e-4 days <br />0.00806 hours <br />4.794974e-5 weeks <br />1.10345e-5 months <br /> on-site by one NRC region-based inspecto Results: No items of noncompliance were identifie Nkh e

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DETAILS Persons Contacted Northeast Nuclear Energy Company (NNECO)

A. Andreae, Surveillance Group Supervisor R. Cikatz, QC Engineer

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G.-Glosins, QA/QC Supervisor J. Crockett, Superintendent, Unit 3

• J. Harris, Startup Supervisor M. Hess,' Assistant Startup Supervisor D. Miller, Jr., Manager, Startup Services S. Sudigala, Assistant Startup Supervisor

, Northeast Utilities Service Company (NUSCO)

-*D.-Blumenthol, QA Engineer

• K. Gray, Jr. , Staff Assistant

• J. LaWare, Surveillance Group Leader

• J. Rhodes,' Project Staff Engineer Stone and Webster Engineering Corporation (SWEC)

L. Clifford, Startup Engineer G. Marsh, Assistant Superintendent, QC Babcock and Wilcox B&W F. McGinley,. Service Engineer U.S. Nuclear Regulatory Commission (USNRC)

• T. Rebelowski, Senior Resident Inspector

• Denotes those present at exit intervie . Preoperational Test Program References

.. References for preoperational test program are documented in Inspection Report Number 423/84-1 .1 Test Program Requirements and Implementation Scop Test- program requirements and . their implementation were discussed with licensee representative The areas explored and discussed during this inspection included testing status; procedure status;.

preparations for auxiliary boiler repairs and testing; preparations for diesel generator testing; preparations for steam generator

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hydrostatic testing; preparations for reactor pressure vessel hydrostatic testing; and, quality assurance and quality control (QA-QC) interfaces during the test program. Applicable documents were reviewed in meetings held with startup personnel, construction personnel, and QA-QC personne Findings Review of documents and discussions with licensee representatives revealed no discrepancies in the areas explore .2' Test Procedure Reviews Scope The: approved test procedures listed in Attachment A were reviewed for technical and administrative adequacy and for verification that adequate testing is planned to satisfy regulatory guidance and licensee commitments. The criteria used for review are listed in Inspection-Report 423/84-1 Findings As a result of the review of the listed test procedures, the inspector ascertained that the procedures are consistent with the referenced regulatory requirements, guidance and licensee commitment No discrepancies or unacceptable conditions were identified. .The inspector had no further questions, on these procedure . Emergency Diese1' Generators The inspector received and reviewed draft copies of pro--

cedure T3346-AP001 Emergency Diesel Generator A-Mechanical, ,

and T3346-AP002 Emergency Diesel Generator B-Mechanical,-

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for verification, and administrative and technical adequacy.

L The inspectors comments and questions - were discussed with and acknowledged by the cognizant startup engineer. The inspector will review the approved procedures on a su'ose-quent inspection, t

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2.3 Test Results Evaluation Scope The completed test procedures listed in Attachment B were reviewed to verify that adequate testing .was accomplished in order to satisfy regulatory guidance and licensee commitments and to ascertain whether uniform criteria were being applied for evaluating completed preoperational tests in order to assure their technical and administrative adequacy. The criteria used for review are listed in Inspection Report 423/84-1 .4 Test Witnessing Scop During the course of this inspection the inspector witnessed portions of emergency diesel generator cooling water system flushes, fuel oil system flushes, and the fuel oil transfer pit tank flushes including transfer of flushing oil from tank A to tank B as well as verifying

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ability to pump out bottom of fuel oil transfer pit tank The inspector also observed continued work on EDGIA and IB for electrical checkout of generators, electrical checkout of controls, and checkonst

'and celibration of instrument Findings No discrepancies or unacceptable conditions were noted during witnessing of these event .5 Auxiliary Boiler Repair and Testing Scope Preliminary auxiliary boiler testing has been an ongoing evolution under direction of the vendor field representative and the startup engineer for that syste Testing to date has included combustion setting, valve and damper setting, and setting and testing of safety

. valves. Proper operation of the auxiliary boiler is a prerequisite

$ to many other tests.'

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Discussion During the startup of auxiliary boiler B, a flame-out occurred due to the condensing effect of the unlagged section of piping in the steam

atomizer supply line to the regulator. This extinguishad the fire in the boilers and, due to the heat existing, ignited the fuel oil in '

the boiler which caused an explosion in the B boile Damage to the boiler system consisted of bowed boiler side plates, bow of the exhaust ducting and outlet damper, damage of the soot blower movement, and slight tube wall deformation and refractory damage, as well as damage to the outlet expansion joint. Pressure from the B boiler explosion al so damaged the outlet damper and flexible joint on the A boile Findings Repairs are underway to repair and replace _ damaged parts and to modify piping and ducting. The inspector will follow-up on all resolutions and subsequent testing on future inspection .6 Steam Generator Hydrostatic Testing Scope The objective of the secondary system hydrostatic test is to verify the leak tight integrity of the steam generators and associated pipin The test includes the main steam piping to the main steam isolation valves and portions of the main steam, steam generator blowdown, feedwater and recirculation, auxiliary feedwater and chemical feed to steam generator system Discussions The inspector received and reviewed a draft copy of procedure T3316-AP002 Main Steam Generator Secondary Side Hydrostatic Test -

SG-3RCS-SGIA, SG18, SGIC and SGI The inspector met with ~1icensee representatives responsible for the steam generator hydrostatic test The discussions included the inspectors questions and comments on the procedure, notification of test date, conduct of testing, and interface between construction and startu The inspector's questions were answered adequately and comments were addressed and incorporated for review and insertion into the approved

. procedure. The inspector will follow up on this test in subsequent-inspection . _ . - . - - - _ - - . _ . - - .. - - - - ._ . . - - - . .

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E  : Quality Assurance and Quality Control ,

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, References

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NNECO Administrative Control Manual '

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. NNECO Unit 3 Startup Manual

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NUSCO Quality Assurance Manual

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. - ' NUSCO Quality Assurance Branch Procedures

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NUSCO Quality Assurance Program Topical Report  !

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Scope s.

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, The inspector met with quality assurance and quality control personnel of

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Northeast Nuclear Energy. Company (NNECO) and Northeast Utilities Service

, . Company (NUSCO). representatives for purposes of -' discussions on QA-QC >

' interface throughout the startup test program. Discussions included the

~, . roles of- QA and QC. regarding test- procedures, audits, in process

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verifications, surveillances, maintenance and monitors.

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~ This ' was the first formal QA-QC meeting with licensee - representatives to

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C ~ discuss ' the areas - of-- quality assurance and quality control during the.

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-startup test : progra The f acnectors, questions and comments were

, . _ adequately addressed during _ tnis . meetin Implementation of QA-QC e activities and interface will be verified on subsequent inspections during ,

f~ the.startup test progra ;

E^ ' Plant Tours

% c.The inspector made several' tours'of the facility' including the containment'

structure, turbine building, auxiliary building, service building, control

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, building, . engineered safety features' building, emergency. diesel generator; .

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V . building, - battery . rooms, control rooms, fuel -oil. transfer tankpits,-

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, auxiliary boiler ~ ' area,s circulating _ and service - _ water pump _ house cand 7, 2 hydrogen recombiner buildin Particular attention in observation was given to. auxiliary boiler: repair

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Landf testing, emergency diese1~. generator flushes, fuel oil transfer tank

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flushes; transfers . and pump out, f and work in progress. This Jincluded

_ housekeeping, _ cleanliness controls' and -storage- and. : protection of~

Jcomponents', piping _and system + No a items of ~ noncompliance 'were _ identifie No unacceptable -conditions were'note '

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5. - ' Exit Inte"rview

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--At Lthe conclusion .of the site inspection on . November -9,1984, an exit

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< meeting' was conducted with the licensee's ~ senior J site representatives

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L(denoted:in< paragraph ~1). The findings - were . identified and previous

. , ~1nspection items'were discussed. At no time during this inspection was-

. written materia 1'provided to the-licensee by the inspector.

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ATTACHMENT A TEST PROCEDURE REVIEW (1) 3-INT-2001 Revision 0, Approved October 19, 1984 Computer Programs Test Appendix 353 Revision 0 Curve Fit Program -

i' (2) 3-INT-2001 Revision 0, Approved October 5, 1984

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Computer Programs Test Appendix 3A7, Revision 0 Enviornmental Technical Specification Alarms (3) 3-INT-2001 Revision 0, Approved October 26, 1984 Computer Programs Test Appendix 3T5 Revision 0 Battery / Battery Charger Testing

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(4) .3-INT-2001 Revision 0, Approved October 19, 1984 Computer Programs Test

. Appendix 3J13 Revision 0 Pressurizer Heatup/Cooldown Rate (5) 3-INT-2001 Revision 0, Approved September 27, 1984 Computer Programs Test Appendix 3R1 Revision 0 Rod Supervision Test Case (6) 3-INT-2001 Revision 0, Approved October 26, 1984 Computer Programs Test Appendix 3S1 Revision 0

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Specific ^ Properties of Water

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ATTACHMENT B

Test Results Evaluation (1) T3315-EA Revision 0, Approved March 5, 1984 Auxiliary Boller Room Ventilation Test'Results Approved October 25, 1984 (2) T3332-APC01 Revision 0, Approved February 24, 1984 Instrument Air - Turbine Building Test Results Approved October 5, 1984 (3)' T3344-AA002 Revision 0, Approved August 9, 1983 480V Lead Center 328 Test Results Approved October 25, 1984

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(4) T3344-AA013 Revision 0, Approved August 9, 1983 480V Load Center 32N Test Results Approved October 25, 1984 (5) T3344-AP017 Revision 0, Approved ~ August 9, 198 V Load Center 32S Test Results Approved October 24, 1984

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(6) T3344-AP020 Revisicn 0, Approved August 9, 1983 480V Load Center 32V-g

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Test Results Approved October 24, 1984

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