ML20199H739
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\\n,N MEMORANDUM FOR:
Robert L. Baer, Chief
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Engineering and Generic A
Communications Branch, IE
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FROM:
Vincent Noonan, Project Director
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Comanche Peak, DL i
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SUBJECT:
MODIFICATION TO CONTRACT NO. 05-82-249, TECHNICAL ASSISTANCE FOR EVALUATION OF
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COMANCHE PEAK ALLEGATIONS AND INSPECTION
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Attached is a modification to the Parameter contract for additional assistance for SSER completion and ASLB hearing assistance.
Your assistance is appreciated.
Vincent Noonan, Project Director Comanche Peak, DL ol n*
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kD Modification to Statement of Work
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This modification extends the period of performance to du b,' 1985 and requires a level of effort of 216 staff days to completeWil/ structural /
mechanical SSERs for Comanche Pea'k and to provide written and oral testimony at upcoming hearings.
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Three mechanical and piping /c mp ent specialist are required as follows:
One individual fo,2'7 Jays in Bethesda, Maryland for 10 days at Comanche Peak site Ed for five days in the home office.
(seven trips to Bethesda, three to the site)
Two individuals (each) for 27 days in Bethesda, five days at the site, and 10 days in the home office. (eight trips to Bethesda and three trips to the site)
Two structural engineering specialists are required as follows:
One individual for 28 days in Bethesda, 12 days at the site and three days in the home office.
(eight trips to Bethesda, six trips to the site)
One individual for 35 days in Bethesda, 10 days at the site and two days in the home office.
(eight trips to Bethesdt, four trips to the site)
6-i TECHNICAL REVIEW TEAM BRIEFING OUALITY ASSURANCE CONCERNS JANUARY 17,1985 INTRODUCTION ROLE OF THE TRT TRT REVIEW AREAS ELECTRICAL /INSTRLFENTATION CIVIL /ECHANICAL QA/0C C0ATINGS TEST PROGRAMS STATUS OF TRT REVIEW EFFORT DISCUSSION OF QA/0C CONCERNS TUGC0 COWEfffS CONCLUSION f
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F0lA-85-59 f29 1
TECHNICAL REVIEW TEAM (TRT)
Project Director V.S. Noonan, NRR Assistant R. Wessman Staff A. Vietti R.C. Tang J. Zudans f
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Electrical /
Civil / Mechanical QA/QC Leader Coatings Leader Test Programs Instrumentation Leader Leader Leader J. Calvo, NRR L. Shao, RES H. Livermore, R-III
[ C. McCracken, NRR R. Keimig, R-I O
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Technical Issues
- Technical Issues Technical Issues
- Programatic and Technical Issues Generic technical Allegations
- Allegations Allegations issues and Allegations allegations QA/QC Related
- QA/QC Related
- QA/QC Related QA/QC Related to E, I&C to Civil / Mech.
- Integrate QA/QC to Coatings to Test Programs from other groups
- Interface with other groups on QA/QC
TYPICAL TRT INVESTIGATIVE ACTIONS APPLICANT RECORDS REVIEW INTERVIEWS WITH ALLEGERS REVIEW 0F AFFIDAVITS AND DOCUTNTS PROVIDED BY ALLEGERS INTERVIEWS WITH APPLICANT AND B&R STAFF REVIEW 0F DEPOSITIONS REVIEW 0F 0FFICE OF INVESTIGATIONS REPORTS REVIEW OF REGIONAL INSPECTION RECORDS INSPECTION OF PLANT SYSTEMS AND COPPONENTS AS-BUILT VERIFICATION PROGRAM FEEDBACK INTERVIEWS WITH ALLEGERS ASSESSENT OF SAFETY SIGNIFICANCE
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PROGRAM PLAN INCLUDE DETAILED PLANS AND SCHEDULES FOR ADDRESSING QA/0C ISSUES.
ADDRESS ROOT CAUSE AND GENERIC IPPLICATIONS, ADDRESS COLLECTIVE SIGNIFICANCE OF DEFICIENCIES ON A PLANT EAT IS NEARLY COPPLETE.
l PROPOSE ACTIONS TO PREVENT RECURRENCE.
I CONSIDER USE OF MANAGEENT PERS0fflEL WIE FRESH PERSPECTIVE CONSIDER USE OF INDEPENDENT CONSULTANT TO PROVIDE OVERSIGHT i
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SlFARY OF TRT FINDINGS LIMITED TRT REVIEW INDICATES:
EXAPPLES INDICATING CPSES NOT ALWAYS CONSTRUCTED IN ACCORDANCE WITH DESIGN EQUIREENTS.
FAILUPE OF QC PROGRAM TO DETECT CONSTRUCTION ERRORS, FAILURE OF MANAGEENT TO RECOGNIZE AND CORRECT THESE BASIC DEFICIENCIES.
SIGNIFICANT AREAS:
PANAGEENT COMITENT AS-BUILT DEFICIENCIES QC INSPECTION QC PERSONNEL QUALIFICATION AND TRAINING ONSITE FABRICATION DOCLENT CONTROL
0A/0C OVERVIEW FIVE ONSITE SESSIONS OF TWO WEEKS EACH PERSONNEL - AT PEAK ACTIVITY 20 CONSULTANTS AND FOUR NRC INDIVIDUALS (ALL ENGINEERS). OVER 300 YEARS EXPERIENCE IN GENERAL ENGINEERING (NUCLEAR AND NON-NUCLEAR) INCLUDING QA/0C 124 ALLEGATIONS, ISSUES, CONCERNS CATEGORIES:
DESIGN PROCESS DOCUENT CONTROL RECORDS TRAINING /0UALIFICATION REPAIR, REWORK, MAINTENANCE ONSITE FABRICATION HOUSEKEEPING NCRs MATERIALS OC INSPECTION QA SCOPE EARLY ASSESSENTS IDENTIFIED SYPPT0MATIC QA/QC PROBLEMS NECESSITATING AN ADDITIONAL CATEGORY AS BUILT 1
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- 1. QUALITY ASSUPANCE PROGRAM NO ERIODIC MANAGEMNT ASSESSENT OF OVERALL EFFECTIVENESS OF lhE 0A PROGRAM AUDIT FUNCTION - UNDER STAFFED REPETITIVE NCRs WERE ISSUED INDICATING A NEED TO RETPAIN CONSTRUCTION ERSONNEL EXAMPLES OF INCOMPLETE AND INADEQUATE WORKMANSHIP AND INEFFECTIVE QC INSECTION OC INS HCTORS WERE IN POSITIONS OF REVIEWING THEIR OWN WORK RECORDS 10 CFR 50.55(E) REPORTING SYSTEM DEFICIENCIES EXIT INTERVIEWS FOR DEPARTING EPPLOYEES WERE INADEQUATELY STRUCTURED AND INEFECTIVE CORRECTIVE ACTION SYSTEM WAS POORLY STRUCTljRED AND INEFFECTIVE
- 2. OC INSECTION FUEL POOL LIER TRAVELER IREGULARITIES:
PREENTERING " SAT" INSRCTION ESULTS CHANGING INSECTION DATES 1
QUESTIONABLE INSECTOR SIGNATUES l
CHANGED PROCEDURE NLPEER FOR ANOTER INSECTOR CHANGED INSECTION DATE FOR ANOTHER INS CTOR MISSING QC SIGN 0FFS FOR STEP 1 MISSING SIGNATURES INADEQUATE DESCRIPTION OF RESOLUTION OF PIPE WHIP ESTRAINT WB.D DEFECTS 4
DEFICIENCIES IN LETTERS OF SEPT,18 Al0 NOV. 29,1984 i
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4.
INSPECTIONS OF AS-BUILT PI W SUPPORTS 8 ELECTRICAL SUPPORTS ECHANICAL FORTY-TWO PIE SUPPORTS WERE INSECTED BY TRT.
FORTY-SIX DEFICIENCIES WERE IDENTIFIED ON TWENTY-SIX OF THE PIE SUPPORTS.
T/ PES OF PI E SUPPORT DEFICIENCIES INVOLVED:
- PROCEDURE INADEQUACY
- HARDWARE LOOSE OR MISSING
- AS-BUILT DRAWING DID NOT PATCH INSTALLATION
- CO W ONENT IDENTIFICATION
- WELDS
- OC RECORDS
- VATERIAL IDENTIFICATION SIX PIPE SUPPORT DEFICIENCIES HAD FREQUENT OCCURRENCE.
ELECTRICAL FIVE ELECTRICAL SUPPORTS WERE INSRCTED BY TRT.
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NINE DEFICIENCIES WERE IDENTIFIED ON THREE OF THE l
ELECTRICAL SUPPORTS.
TYPES OF ELECTRICAL SUPPORT DEFICIENCIES INVOLVED:
- HARDWARE
- CONFIGURATION
- WELDS ALL PIK SUPPORTS AND ELECTRICAL RACEWAY SUPPORTS INSECTED BY TRT HAD BEEN PREVIOUSLY ACCEPTED BY SITE QC,
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Table 1
Pipe Supports Unit 1
Supports inspected by TRT As-Built group
- 42 Class 1 4
i Class 2 14 l
Class 3 24 l
Hangers with nonconformances 26 Total deficiencies 46 Procedure adequacy 5
Hardware-related 16 As-Built 8
l Component identification 2
Weld-related 10 QC record 1
1 Material IDENTIFICATION 4
Different types of deficiencies 25 Welds inspected without paint by TRT 305 Welds inspected with paint by TRT 89 Welds needing repair 10 4
Supports involving weld repair 6
- All 42 pipe supports inspected by TRT had been previously final Oc accepted.
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l Table 1 (cont'd)
. _. Pipe Supports Unit 1
ouantity Bldg System _
Inspected Containment Safety injection (SI) 1 Containment Reactor Coolant (RC) 6 Containment Residual Heat Removal (RHR) 2 l
Fuel Handling Component Cooling (CC) 11 i
l Safeguards Residual Heat Removal (RHR) 1 Safeguards Containment Spray (CT) 8 Safeguards Demineralized Water (DD) 1 Safeguards Auxilary Feedwater (AF) 8 Auxiliary Chemical Volume & Control (CS) 1 Safeguards Main Steam (MS) 2 j
Safeguards Chilled Water (CH) 1 (small bore)
Wenczeldec-2
Table 2 l
Pipe Supports Unit 1
i Types of Deficiencies
- Deficiency Hanger No.
- Deficiencies Category 1 No locking device on threaded fasteners RC-1-901-702-C82S 2
Hardware CS-1-085-003-A42K 2 Mm. edge distance (on base plate) violated CC-X-039-006-F43R 1
Hardware 3 Baseplate hole-location dimensions out of CC-X-039-007-F43R 4
As-Built tolerance CC-1-126-010-F33R CC-1-126-011-F33R CC-1-126-012-F33R 4 Spherical bearing / washer gap excessive CC-1-126-015-F43R 4
Hardware R0-1-052-016-041K RC-1-052-020-C41K MS-1-416-001-S33R 5 Spherical bearing contamination SI-1-090-006-641K 2
Hardware MS-1-416-002-S33R 6 Snubber adapter plate-insufficient thread MS-1-416-002-S33R 3
Procedure engagement SI-1-090-006-041K CT-1-013-012-S32K
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7 Insuf ficient threaded eng'mt, threaded rod RC-1-901-702-082S 1
Hardware j
(sight holes) i l
- All 42 pipe supports inspected by TRT had been previously final QC accepted.
wenczeldec-0 j
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Table 2 (cont'd)
Pipe Supports Unit 1
Categories of Problems
- l Problem Category Hanger #
- of Problems Problem Type 8 Snubber / Strut load pin locking device AF-1-001-014-S33R 1
Hardware i
broken or missing 9 Load side of pipe clamp halves not AF-1-001-001-S33R 2
Procedure parallel AF-1-001-014-S33R 10 Pipe clearances w/suppoit out of CC-1-126-013-F33R 2
Hardware i
tolerance AF-1-001-702-S33R 11 Pipe clamp locknut loose AF-1-035-011-S33R 1
Hardware 12 Snubber / sway strut misalignment CC-1-126-014-F43R 2
Hardware r
l RC-1-052-020-C41R 13 Snubber cold set dimension does CS-1-085-003-A42K 1
As-Built not match drawing 14 Snubber orientation does not match CT-1-005-004-S22K 2
As-Built drawing CT-1-013-010-S22K 15 Component type /model # installed SI-1-090-006-041K 2
Component ID does not match drawing RC-1-052-020-C41R l
16 NO IDENTIFICATION FOR SUPPORT MATERIALS, CT-1-013-014-S32R 4
Matl. ID PARTS, AND COMPONENTS CC-1-126-012-F33R l
CC-X-039-005-F43R AF-1-035-011-S33R 1
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- All 42 pipe supports inspected by TRT had been previously final QC accepted.
wenczeldec-4 l
I Table 2 (cont'd)
Pipe Supports Unit 1
Types of Deficiencies
- Deficiency Hanger No.
- Deficiencies Category i
17 BRP column line dimension does not Support not affected 1
As-Built match BRHL dimension 18 Weld porosity excessive AF-1-001-001-S33R 1
Weld-related 19 Weld undercut excessive AF-1-001-702-S33R 1
Weld-related 20 Weld length undersized AF-1-001-001-S33R 1
Weld-related 21 Weld leg or effective throat AF-1-001-001-S33R 3
Weld-related undersized RH-1-006-012-C42R CC-X-039-007-F43R 22 Weld called out on drawing does not CC-1-126-013-F33R 1
Weld-related exist in field 23 Wolds added in field are not reflected AF-1-001-702-S33R 1
Weld-related on drawing numerous welds 24 Excessive grinding resulting in min.
AF-1-037-002-S33R 2
Weld-related i
thickness violations (weld clean-up)
CT-1-013-014-S32R 25 No QC buy-off on weld data card CC-1-126-013-F33R 1
QC Record 46 Total Problems-
' identified by TRT i
- All 42 pipe supports inspected by TRT had been previously final QC accepted.
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i Table 3
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Summary of Field Review of Pipe Support Welds s
Total number of pipe supports inspected
- 42 Number of supports requiring weld repair 6
4 Percent of total inspected requiring repair 14 %
Total welds inspected on 42 supports 394 Number of inspected welds which require repair 10 Number of welds repaired (as of Oct. '84) on the 6 9
l defective supports Welds requiring repair, percent of total welds inspected 2.5 %
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All 42 pipe supports inspected by TRT had been previously final QC accepted wenczeidec --6
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Table 4
Summary of Additional Support inspections Area:
Room 77N, Elevation 810'-6" Unit #1, Safeguards Building No. of Supports No. of Supports Deficiency Inspected Deficient
% Deficient Excessive 92 5
5.4 %
Spherical Bearing Clearance Load Pin Locking 92 14 15.2 %
Device Missing Pipe Clamp tialves 40 9
22.5 %
Not Paral %I Snubber Adapter 19
- 13 To Be Plate Bolts With Determined Less Than Full Thread Engagement
- Bolts had less than full thread engagement.
wenczeldec-7
Table 5
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Summary of Additional Support inspections l
l Area: Cable Spread Room 133, Elevation 807'-0" Unit #1, Auxiliary Building l
Deficiency Bolts inspected
- Deficient
% Deficient I
Hilti Kwik Bolt 24 3
12.5 %
Does Not Meet Minimum Embedment**
- Taking into account the " allowed" slippage of the bolt for a distance of one nut thickness due to the torquing and the minimum specified embedmont, the above Hilti bolts violated the " effective" embedment requirements.
(Ref. " Installation of 'Hilti' Drilled-in Bolts" 35-1195-CEl-20, Rev. 3, Para. 3.1.4.1) wenczeldec -8 l
Table 6
Summary of Electrical Support inspection - Unit #1 l
t Support welds inspected 59 Supports inspected by TRT As-Built Group 5
Supports with problems (3/5 = 60%)
3 Supports accepted (2/5 = 40%)
2 Types of Deficiencies Hardware-related, other than welding 6
Unauthorized configuration change 1
Weld-related types of problems (categories) 2
^
Welds requiring rework 41 Welds made in field but not recorded on drawing 80 Beam stiffeners added but not recorded on drawing 40 Building / Area Supports Cable Spread Room CTH 12646 C 130-21-250-3 C 120-21-194-3 I
Auxiliary Building CTH 6742 Containment CTH 5824 wenczeldec-9
Table 7
Summary of General Types of Deficiencies (pipe supports and/or electrical supports)
- Undersize welds
- Weld undercut and porosity
= Weld insufficient fill and surf ace
- Grinding of base metal material
- Excess welds not shown on drawing
= insufficient thread engagement
- Absence of locking devices
- Minimum edge distance violation
- Excessive gap in spherical bearing interfaces - strut and snubber
- Shock arrester model numbers do not match drawings wenczeldec-10
i Table 7 (cont'd)
Summary of General Types of Deficiencies (pipe supports and/or electrical supports)
I Component support bolt holes out of location Spherical bearing contamination Thread engagement not verified Pipe clamp halves not parallel Pipe clearance with supports out of tolerance Loose pipe clamp locknuts Snubber / sway strut misalignment Snubber cold set out of tolerance
- Snubber orientation not on drawing
- Electrical hanger welds not on drawing
- Beam stiffeners not shown on drawing
- Material Ioenrr'gicATio'N LdCKING wenczeldec-1 1
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I TABLE 8 TRT CONCLUSIONS ON AS-BUILT EFFORT
- 1) QC INSPECTIONS AE INEFFECTIVE
- 2) CRAFT CONSTRUCTION IS FAULTY
- 3) HARDWARE IS NOT PER AS-BUILT DRAWINGS
- 4) HARDWARE POTENTIALLY NOT En<ESENTED CORECTLY IN TE FINAL STESS ANALYSIS
Figure 1.
Hardware Examples Lood Bolt, One Nut On!y, g,y o Lock Nut N
Lead Pir Sprin9 j
With Cettet
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"-,J" Pin Lochn" Can Thread E
Device
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Sight i
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Sway Strut C
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Snubbe'
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d Pipe Clamp Topped Hole k
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Extension Kit
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! H Plate
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, Not Topped' Pipe 1
CIamp One Nut Only, No Lock Nut Sphe-ico'
~Beo-ing
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Snubber l
Extension Kit werczeldec-13 i
5.
DOClFENT CONTROL POTENTIAL EXISTS FOR THE DCC SATELLITES TO ISSUE DEFICIENT DOClFENT PACKAGES TO CRAFT PERS0fWEL DRAWING CONTROL INADEQUATE PRIOR TO JULY 1984 RECURRING DEFICIENCIES IDENTIFIED BY INTERNAL AND EXTERNAL AUDITS BETWEEN SEPTENER 1981 TO AUGUST 1983 FIELD DISTRIBUTION CHANGED FROM FILE CUSTODIANS TO SATELLITES RECURRING DEFICIENCIES CONTINUED FROM AUGUST 1983 TO APRIL 1984 TREND REVERSED WHEN TOP MANAGEM NT PARTICIPATED IN CORRECTIVE ACTION PROCESS PROCEDURES GOVERNING 10 CFR 50.55(E) DEFICIENCY REPORTING INADEQUATE CONSIDERATION OF REPORTING CYGNA AUDIT FINDINGS TO NRC DCC CONTROL COPY STAWS NOT ADEQUATELY PROCEDURALIZED
- 6. TRAINING /0UALIFICATION TkENTY PERCENT OF THE TRAINING RECORDS REVIEWED CONTAINED NO VERIFICATION OF EDUCATION OR WORK EXPERIENCE RESULTS OF LEVEL I CERTIFICATION TESTS USED FOR SOE LEVEL II CERTIFICATIONS AFTER FAILING A CERTIFICATION TEST, A CANDIDATE COULD TAKE THE IDENTICAL TEST AGAIN.
CERTIFICATIONS NOT ALWAYS SIGNED OR DATED WHITE-0UT USED ON CERTIFICATION TESTS SEVEN INSPECTORS HAD QUESTIONABLE QUALIFICATIONS NO LIMIT OR CONTROL ON THE NitBER OF TIES AN EXAMINATION COULD BE TAKEN NO GUIDELINES FOR THE USE OF WAIVERS FOR ON-THE-JOB TRAINING RECERTIFICATION WAS ACC0FPLISHED BY A SIPPLE "YES" FROM A SUPERVISOR NO FORMAL ORIENTATION TRAINING FOR DCC PERSONNEL PRIOR TO AUGUST 1983 l
RESPONSIBILITY FOR ADMINISTRATION OF THE NON-ASE TRAINING PROGRAM NOT CLEARLY ASSIGNED TO A SINGLE INDIVIDUAL OR GROUP NON-ASE PERSONNEL CAPABILITIES LOOSELY DEFINED BY LEVELS (I,II,III)
EXEMPTION PROVISION IN ANSI N45.2.6, WHICH ALLOWED SUBSTITUTION OF PREVIOUS EXPERIENCE OR DEM)NSTRATED CAPABILIh', WAS THE NORMAL ETHOD FOR QUALIFYING INSNCTION PERS0MEL RATER THAN THE EXCEPTION ADDITIONAL PROBLEMS IN NON-ASE CERTIFICATION TESTING NO REQUIREENT FOR ADDITIONAL TRAINING BETWEEN A FAILED TEST AND THE RETEST NO TIE LIMITATION BETWEEN A FAILED TEST AND A RETEST TWO DIFFERENT SCORING ETHODS TO GRADE TESTS N0 GUIDELINES ON HOW A TEST QUESTION SHOULD BE DISQUALIFIED NO PROGRAM FOR PERIODICALLY ESTABLISHING EW TESTS EXCEPT WHEN PROCEDURES CHANGE NO DETAILS ON HOW TE ADMINISTRATION OF TESTS SHOULD BE K)NITORED
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7.
VALVE INSTALLATION THERE WAS A LACK OF CONTROL TO PREVENT THE LOSS, DAMAGE, AND INTERCHANGE OF PARTS WHEN VALVES WERE DISASSEPBLED PRIOR TO WELDING THE VALVE BODY IN THE LINE (PIPING INSTALLATION) 4 l
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8.
ON SITE FABRICATION (IRON FAB SHOP)
SCRAP AND SALVAGE IN LAYDOWN YARD WAS NOT IDENTIFIED AND DID NOT HAVE RESTRICTED ACCESS INDETERMINATE BULK MATERIALS MINGLED WITH CONTROLLED SAFETY AND NON-SAFETY MATERIALS IN LAYDOWN YARD MATERIAL REQUISITIONS DID NOT COPPLY WITH THE APPLICABLE PROCEDURES SHOP FOREEN NOT FAMILIAR WITH THE PROCEDURES THAT CONTROLLED THE WORK UNDER THEIR RESPONSIBILITIES FABRICATION AND INSTALLATION PROCEDURES DID NOT INCLUDE INFORMATION TO ENSURE THAT B a R FABRICATED THREADS CONFORWD TO DESIGN SPECFICIATIONS OR TO AN APPLICABLE STANDARD QC SITE SURVEILLANCES OF MATERIAL STORAGE NOT DOCIENTED WORK IN FAB SHOP PERFORED IN RESPONSE T0 P90S AND SKETCHES INSTEAD OF HANGER PACKAGES, TRAVELERS AP0 l
CONTROLLED DRAWINGS
9.
HOUSEKEEPING AND SYSTEM CLEANLINESS SWIPE TESTS ON REACTOR VESSEL PROCEDURE FP-55-08 REQUIRES Th0 SWI K TESTS ON THE REACTOR VESSEL i
THE TRT QUESTIONS THE ADEQUACY OF ONLY TWO TESTS l
TO ASSURE THE CLEANLINESS OF THE VESSEL PROTECTIVE COVERINGS WELDING ACTIVITY ADJACENT TO SNUBBERS NOT COVERED WITH A PROTECTIVE DEVICE i
POTENTIAL VIOLATION OF PROCEDURE CP-CPM-14.1 4
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- 10. NONCONFORMANCE REPORTS (NCRs)
USE OF APPROXIMATELY 40 DIFFERENT FORMS FOR RECORDING DEFICIENCIES INADEQUATE INSTRUCTIONS FOR HANDLING VOIDED NCRs USE OF NCRs AS A TRACKING DOCLPENT NOT DEFIED IN PROCEDURES l
INCONSISTENCY IN REPORTING OF NONCOWORMANCES CONTROL OF OBSOLETE NCR FORMS i
TWO TUGC0 NCR FORMS IN USE BY CONSTRUCTION NO IDENTIFICATION OF CAUSE OF NONCOWORMANCE OR STEPS j
TO PREVENT RECURRENCE NO EVIDENCE OF QUALITY ASSURANCE MANAGEENT INVOLVDENT
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- 11. MATERIALS PIR SUPPORT MATERIAL TRACEABILITY FAILURE PRIOR TO OCTOBER 1981 PROBLEM IDENTIFIED IN ASE CODE SURVEY FAILED TO REPORT QA BREAKDOWN AS PER 10 CFR 50.55(E)
I-3025
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Suggested Areas for Contention V Panel Site Visit in Civil / Structural Discipline 1.
Control Room Ceilings Reason:
One of the five TUEC action items relates to Control Room Ceiling design deficiencies.
2.
Reactor Cavity wall at Elev. 812' to 819' Reason:
Rebar placement deficiency at Elev. 812' to 819' 3.
Schmidt Hammer Test Observation in Auxility Building.
Reason:
Schmidt Hammer tests are used to generate relative "as-built" concrete strength data in resolution of the allegation pertaining to concrete strength test data falsification issue.
4.
Observation of TV probe and monitoring of "as built" seismic space between buildings.
Reason:
Use of TV probe and monitoring of as-built seismic spaces between buildings is required to resolve the allegation pertaining improper installation of roto-form material.
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S.
Fuel Pool and Steel Pool Liner Reason:
The QA/QC deficiencies associated with the installation of fuel pool liner may be of interest to the panel.
6.
Document Control Center and Record Vaults Reason:
To understand the operation of information handling systems utilized by TRT staff in resolving allegations.
C
r-Sugcested Areas for
_ Contention V Panel Site Visit in Mech / Piping 1.
Permanent Plant Record Vaults - located in Administration Building Reasons: Primary information source for evaluating allegations.
2.
Area near bridge on the roof of Safeguard Building.
Reasons: Areas with biggest pipe whip restraints
]
Note that pipe whip restraints and supports, and their welding are major subjects of allegations.
3.
Operating floor of reactor building.
Reasons: Area where alleged steam pipe installation is located.
Location with unconventional pipe supports and welding problems.
4.
South Yard Tunnel Reasons: Area with numerous hangers and supports Get idea about how pipes are excessively supported and their l
construction problems.
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