IR 05000320/1976015
| ML19220B303 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 10/29/1976 |
| From: | Folsom S, Keimig R, Narrow L NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| To: | |
| Shared Package | |
| ML19220B299 | List: |
| References | |
| 50-320-76-15, NUDOCS 7904250608 | |
| Download: ML19220B303 (16) | |
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IE ' Form 12 (J.
75) (Rev)
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II. S. NUCLEAR REGULATORY CC:EtISSIO:t OFFICE OF I:iSPECTIO:i A.'D E iFORCCtE ;T
REGION I
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IE Incpection Report No:
50-320/76-15 Docket No:
50-320 Licensee:
Metropolitan Edison Company
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License No:
CDPR-66 Box 542 Priority:
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Reading, Pennsylvania 19603 B
, Ca t egory:
Safeguards
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Group:
Location:
Middletown, Pennsylvania (TMI-2)
Type of Licensce:
Type of Inspection:
Poutine, Unannounced
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October 13-15, 1976 Dates of Inspection:
September 13-17, 1976 Dates of Previous Inspectio.
' Reporting Inspector:
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L. Narrow, P.eactor Inspector Accompanying Inspectors:
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', Re uor I spector
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A. Vhrefa, Reactor Inspector DATE DATE Other Accompanying Personnel:
None DATE Reviewed By:
R. R r g, Chie Construction Projects Section Reactor onstruction and Engineering Support Branch
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(Acting)
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SUMMARY OF FINDINGS Enforcement Action
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Items of Noncompliance None.
Licensee Action on Previously Identified Enforcement Items None.
Design Changes None.
Unusual Occurrences None.
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Other Significant Findings A.
Current Findings 1.
Unresolved Items _
a.
76-15-01 - Provide for inspecti of'rebar in chipping concrete.
(Details, Paragraph J/
b.
76-15-02 - Provide complete records to support preventive maintenance of electrical equipment.
(Details, Paragraph 7.b)
2.
Acceptable Items a.
Deviation Reports (DR's) for instrumentation, electrical and structural work, and corrective actions taken.
(Details, Paragraph 4)
b.
Audits of instrumentation and structural installation.
(Details, Paragraph 5)
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Installation of electrical components.
(Details, Para-graph 6)
d.
Review of electrical quality records.
(Details, Para-graph 7)
e.
Observation of post-tensioning activities for dome tendons.
(Details," Paragraph 8)
f.
Review of quality records of vertical and horizontal tendons.
(Details, Paragraph 12)
B.
Previously Reoorted Unresolved Items
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The following items have been resolved:
1.
Welding of supports for core flood tank CF-T-1B.
(Details,
Paragraph 9)
2.
Nonconforming wald surfaces on core flood piping.
(Details, Paragraph 10)
3.
The licensee reported use of nonqualified cable in safety related circuits.
(Details, Paragraph 11)
C.
Deviations None.
Exit Interview An exit interview was held at the site on October 15, 1976.
Jsons Present General Public Utilities Service Corporations R. F. Fenti, OA Auditor S. Levin, Project Engineer P. A. Levine, QA Auditor
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M. J. Stromberg, Sr. Site Auditor
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_3-United Encineers and Constructors J. J. Carrabba, Construction /QC Superintendent D. C. Lambert, Field Supervisor QC J. Spinak, Lead QC Engineer Burns & Roe G. T. Harper, Jr., Site Project Engineer A.
Scope of Inspection The inspector stated that the inspection was conducted to review the status of outstanding itens and the QC program for instrumen-tation, structural, and electrical work.
B.
Inspection Findines The inspector su==arized the results of the inspection as listed in the Summary of Findings. -In each case the licensee acknowledged the inf ormation.
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DETAILS
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1.
Persons Contacted
_ General Public Utilities Service Corporation R. F. Fenti, QA Auditor S. Levin, Project Engineer P. A. Levine, QA Auditor M. J. Stromberg, Senior Site Auditor T. Hawkins, Assistant Test Superintendent United Engineers and Constructors J. Carrabba, Construction /QC Superintend R. Crofton, QC Engineer ent
. G. L. Derk, QC Engineer, Mechanical L. A. Dick, QC Engineer, Electrical D. Lambert, QC Supervisor R. W. Liscom, QC Engineer, Electrical J. Rebok, QC Engineer, Receiving J. Schmidt, Records Supervisor
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Multi-Amp Corporation J. A. Kncx, Field Supervisor St ress te.$3rporation
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B. Papworth, Superintendent H. Williams, QA Manager 2.
General At a pre-inspection meeting with the lic the inspector discussed the scope of th ensee's representatives, tive identified the items which had beof outstanding ite e inspection.
The status ensee's representa-representative discussed pregress of the wo k en corrected.
The licehsee's second shift of electrical workers would stpost-tensio r.
ree weeks; that a and, that chemical cleaning of the main st art in January, 1977; eam lines had been completed.
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3.
Inspection of Rebar During a walk-through inspection of the f acility the inspector observed that chipping of the concrete in the north wall of the fuel transfer canal for construction of the shield walls and slabs around the fuel t ransfer tubes had exposed the reinforcing steel and in some inst:nces the surface of the steel had been marked by the chipping *.ols.
The inspector was informed by the licensee's representative ti.st inspection of this work had been performed in accordance with QC procedure QC-1-2 " General Construction and Structural Concrete "Section V " Field Inspection (Preplacement)."
Checklists used fo: this inspection include " Inspector's Concrete Checkout Sheet" and " Concrete Placement Checklist Sheet."
Neither the procedure nor the checklists require that the physical condi-tion of the reinforcing steel be inspected nor establish criteria for permissible defectc. in the sel.
The inspection records do
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not identify the chipping tool markings.
This ites (70-15-01) is unresolved pending review by the NRC inspector of the licensee's evaluation of damage to the reinforcing steel and requirements for inspection of reinforcing steel for damage following its exposure by chipping.
4.
Deviation Reports a.
Instrumentation The inspector examined DR Nos. 0513, 0549, 0568, 0613, and 0628.
In each case the DR adequately describes the deficiency and its disposition.
Corrective action, to prevent recurrence of similar problems, is evaluated and prescrAbed if considered necessary. The disposition actions were ver$1".ed; reinspections of the items were conducted.
The DR's were complete, legible, reviewed by QC and readily retrier;sle.
b.
Structural Welding The inspector examined DR Nos. 0602 and 0622 together with QC Inspection Report (IR) Nos. 2352 and 2983 which reported nonconforming conditions.
In each case the DR or IR was complete, legible and readily retrievable.
DR No. 0602 and the IR's had been properly closed out.
DR No. 0622 had been dispositioned but the disposition action was incomplete and the DR was not yet closed out.
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Electrical The inspector examined the Deficiency Reports (DR) related to
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electrical equipment and components.
The following were included in the review:
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DR No.
Electrical Item Date Closed Out 0080 Pump motors NRP-2A+2B 6/7/73 0210 Pump motor EFP 2A 1/2/74 0220 Limitorque motor CFV2A 8/13/74 0240 battery boxes ELH2-162 5/20/74 0245 4160-volt bus 2-2E 5/7/76 0265 MCC 2-11 EA 5/23/74 0270 Cable tray ESB-14 7/15/74 0275 Reactor coolant evaporator 5/23/74 motor 0300 Power Strut tubing PS-204 10/2/75 0310 Axivane fan motor AH-E-11B 3/7/75 The DR records included the corrective action to be taken, the status of resolution, and had been approved by Quality Control Supervision.
No discrepancies were identified.
5.
Audits a.
Instrumentation The inspector e:rnmined the f'ollowing reports:
(1) GPU Audit Report No. 76-05 for an audit conducted during the period March 8, 1976 to April 7, 1976 to verify com-pliance with FSAR, specifications and procedures for pro-curement installation and inspection of instrumentation.
(2) B&R Surve'.11ance Inspection Report No. 61 for an inspection of installation of instrumentation conducted during August 2-31, 1976.
In each case, timely correction of deficiencies by the audited organization was actively followed by GPU and B&R.
The inspector exanined GPU Monthly Audit Status Report dated October 11, 1976 which shows the status of response and corrective action for each finding identified.
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Structural Installation The inspector examined GPU Audit Report Nos. 75-31 and 7.6-02.
Copies of the reports are sent to GPU and the constructor's site management and to appropriate GPU and licensee management personnel.
Report No. 76-02 covered an unannounced audit of anchor bolt repair which identified two findings.
Corrective action was timely and was considered to be acceptable.
6.
Installation of Electrical Co=ponents The inspector examined the installation of the following items to determine whether the requirements of applicable specifications, work procedures, and inspection procedures were being accomplished.
a.
Valve Operator Motors The motor installation on valves DHV3 and NSV-100 had been completed prior to the inspection.
Their installed condition was examined by the inspector and found to meet the require-ments of Babcock and Wilcox Field Specification FS-III-11A.
A QC inspection of these valves had been completed in accord-ance with the constructor's QC Inspection Report " Checklist for Installation of Valves for Nuclear System," Numbers W-899 and W-1007.
These reports included verification of installa-tion (per USAS B31.7 " Nuclear Power Piping"), orientation, and cleanliness.
No discrepancies were identified.
b.
DC Bus and Associated Breakers The 125/250 VDC bus No. EEH-2-1-DC and associated breakers had been installed, testing was complete, and the equipment had been turned over to the constructor's startup group.
The inspector examined the instalistion which had been performed in accordance with the constructor's procedure ECP5-2, for handling and installation.
The equipment was found to be clean, properly identified, grounded, and protected from nearby construction operations.
Inspection had been completed by the constructor's QC in accordance with " Placement and Anchoring of All Items Under Scope of ECPS-2," May 26,1973.
No discrepancies were identified.
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Calibration and Trip Set Points Installed electrical equipment was being calibrated and trip-set by a subcontractor, Multi-Amp Testing Services Corp. The inspector observed the testing work being performed on an installed electrical panc? EEH-22-DC, in accordance with Multi-Amp Specification MESCO 70-55, Revision 3, September 25, 1975.
A Multi-Amp High Current DC Test Set (0-25,000 amperes range) equipped with a digital read-out timer was used in the testing. The inspector examined personnel records and interviewed Multi-Amp supervisory and testing personnel and determined that they were qualified to perform this work.
Per procedure, dated Multi-A=p stickers were being affixed to equipment on which electrical testing had been completed.
Calibration and trip-setting records were examined on the following safety-related valve motors: 10DR, 11DR, 9BR, and ICR.
The records were found on Multi-Amp Form MAESCO No. 22,
"Lov Voltage Power Circuit Breaker Test Results," and included identification, test data, disposition, and approvals by the Multi-Amp Field Supervisor.
No discrepancies were identified.
7.
Electrical Ouality Records The inspector reviewed the work and inspection records associated with selected safety-relnted electrical equipment and components.
The purpose of this review was to determine whether the records reflected work accomplishment consistent with the requirements.
The records on the following equipment and cceponents were selected for review:
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125-volt battery and racks, No. EE-H2-1.
125.vcit DC bus and breakers, No. EE-R2-2DC.
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125-volt distribution panel, No. DCC-1A.
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Electric motors, Nos. NRP-1A, B and NS-P-1A,B.
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Electric valve operators, Nos. DHV3, ICV 2, NR-V2A,B.
Mc, tor control centers, Nos. NCC2-11Em MCC-2-11E3, MCC2-21EB,
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and MCC 2-31E.
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Protection panels, Nos. 30 and 320.
Records reviewed in the following areas included:
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Receiving Inspection and Materie3 Certification Records
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UEFC Component Inspectior Re> ort, April 25, 1976.
UEFC Receipt Inspection And ltaterial Certification,
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consisting of documentation psckages assembled for each
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equipment and component ites.
Included in each package
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are documentation checklists which include identifica-tion, documentation required and furnished, purchase orders, and reference drawings.
No discrepancies were identified.
b.
Storage, Randling, and Installation Records The inspector examined records for each of the selected electrical items, which confirmed that the required storage, handling, and installation requirements had been met.
Preventive Maintenance Cards had been completed for each equipment item, and included periodic checks for cleanliness, rotation, heaters activated, and desiccant condition. These records were fcund to be complete up to the date that the equipment was turned over to the constructor's test and startup group.
Following turnover, these pericdic checks were fc;nd to have been generally waived, based upon a statement in the constructor's Preventive Maintenance Specification SP-4 that preventive maintenance checks could be waived if the equipment had been operated within the manth preceding the scheduled check.
The inspector questioned this practice inasmuch as no records were maintained to establish dar.es of equipment operation.
The licensee stated that this procedure would be reviewed.
Except for the waiving of preventive maintenance checks follow-ing turnover, no discrepancies were identified in the storage, handling, and installation records.
This item (76-15-02) is unresolved.
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Calibration and Trip Setting Records The inspector revi7wed the Multi-Amp Testing Services Corp.
reco.-ds applicable to the calibration and trip-setting of a number of the electrical equipment and components selected for record review.
The data was found on Multi-Amp Forms MAESCO No. 22, " Low Voltage Power Circu'it Breaker Test Results."
Testing had been witnessed by the constructors QC, Electrical Item No.
Date Testing Completed E E-H2-1 9/27/76 EE-H2-2DC 9/27/76 DCC-1A Scheduled 10/76 hCC2-11EB 9/8/76 MCC2-11E 6/1/76 MCC2-21EB 6/28/76 Panel 30 1/31/76 Panel 320 Not in scope MCC2-31E 6/10/76 The records established that the specified calibrations and trip settings had been completed.
No discrepancies were identified.
8.
,0bservation of Tendon Post-Tensioning The inspector observed work performance and work in progress relative to containment dome structure post ~ tensioning activities during dome tendon installation, tensioning, and grouting. He ascertained, by independent evaluation of trork, whether activities relative to containment structure prestressing activities are being accomplished in accordance with NRC requirements and SAR commitments.
The following specificaticas, codes, standards and procedures form the basis for the inspector's evaluation of conformance.
Burns and Roe structural Specification No. 2550-30, Rev.
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10/31/75.
ACI 318-63 Building Code Requirements for Reinforced Concrete.
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Stress Steel Installation and Field Quality Assurance Pro-cedures, Rev. Oct. 1, 1976.
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-11-Specifically, the following activities were observed, noted and discussed with contractor, QC, and licensee QA personnel for doce tendons L-8, 9, 36, and L-37 :
Tendon handling and installation - Dome tendons number L-8, 9, a.
36 and L-37 were observed installed in confor=ance with
.Stressteel (S.S.) procedure section 6 and latest revisions in Appendix D dated August 18, 1976.
b.
Installation of dome tendon anchoragc components for the above listed tendons was observed during placing of splay and wedge plates, placing three-piece cone wedges over the three-strand elements of the tendons and setting cone wedges in their respective wedge plate seats as required by S.S. procedure Appendix D, section 7.
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Anchorage fabrication - Work performed on the strand system c.
which utilizes conical wedge anchors was observed.
Inspection and documentation by S.S. QC on above dome tendons was noted drein; their fabrication to meet requirements of S.S. pro-cedure section 8.
d.
Tendon tensioning - Observed uork and inspection performance, including data recording, during tensioning of three of above doce tendons and measurement of jacking force and elongation as required by Section 9 of G.S. procedure and B&R specifi-cations.
e.
Mechanical and corrosion protection was observed to have been provided for dome tendons delivered by truck to the job-site for conformance to S. S. procedure, section 6.
f.
Filling of tendon ducts with protective grout - Grout propor-tioning, mixing, testing, and pumping.were observed for the above tendons.
Verification and control of these operations were observed to conform to sectiou 10 of S.S. procedure.
No discrepancies were identified in the above activities.
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Structural Welding Records Incomplete welding inspection of supports for Core Flood Tank CF-T-IB had been identified as an unresolved item.
(Inspection Report 50-320/76-08)
The inspector examined IR Sos. W-2134 and W-2135 which document welding inspection of anchor bolts for the core flood tank support structure.
Visual inspection of fit-up through final pass had been performed and was reported to be acceptable. The welder, weld procedure and welding electrode used are identified.
Liquid penetrant inspection of the final pass had been performed in accordance with procedure LPT-1-NP and the report of this inspection which was attached showed the results to be acceptable.
The inspector also examined IR W-2352 which documented inspection of all field welds on CF-T-1B as required by B&R drawing No. 4205 Rev. 4 and identified several discrepancies.
IR W-2526 documented reinspection and correction of the reported discrepancies.
This item is resolved.
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Nonconforming Weld Contours Nonconforming weld contours had been identified as an unter:olved item.
(Inspection Report 50-320/76-09)
The inspector examined IR Nos. W-2456, W-2495, and W-2505.
IR No. W-2456 identified ten welds in the core flood and decay heat system which did not meet the requirements of ANSI B31.7.
IR Nos. W-2495 and W-2505 document grinding of the welds reported on W-2456 and report that the weld surfaces meet the ANSI B31.7 requirements.
The inspector observed that the surf aces of welds 2-CF-11, 2-CF-12R1 and 2-CF-V4B had been ground smooth and conformed to the requirements of ANSI B31.7.
This item is resolved.
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Non-Oualified Cable on September 15. 1976 the licensee reported use of a non-qualified cable in a safety related circuit as a significant deficiency in accordance with 10 CFR 50.55 (e).
A later evaluation of the circuit by B&R showed that tha circuit (HH 2171) is not routed through high radiation area and that it should not be classed as safety related.
The licensee reported this information to NRC:I on September 23, 1976 and stated that as a result of this evaluation this incident had been determined not to be significant.
The inspector examined DR No. 0638 and GPU Me=o IMI-II-4502 which confirmed this evaluation as well as corrective action to prevent recurrence of this type of incident.
This item is resolved.
12.
Post-Tensionine Quality Records The inspector reviewed quality related records relative to con-tainment structure prestressing activitics to ascertain whether these records reflect work accomplishments consistent with NRC requirements and SAR cocmitments.
Three truckloads of tendons, one each from the vertical, hoop and doce tendons were selected for review to determine whether applicable requirements of appro-priate specifications, codes, standards and procedures, identified in paragraph A.2 above, have been met.
Specifically, the following pertinent records were reviewed and discussed with Stressteel QC, QA and UE.J surveillance personnel, Vendors notarized material records provided certification to a.
ASTM A416-74 for wire used in fabricating-270K weldless
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LoLax strand by supplier, Florida Wire and Cable (FWC).
Records for vertical tendon V001, hoop tendon H001, and dome tendon D001 were reviewed.
Chemical and physical test reports for each of seven wires were traced and, 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> stress relax-ation test on the strands vere identified.
b.
The 54 strands, composited into above tendons, were identified on receipt inspection records at Wilkes-Barre, Pa. plant of SS.
The cross-referenced files were found to provide clear ready identification through the basic wire metallurgical heat numbers to the final tendon asse=bly of 54-7 wire strands.
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Tendons were selected for record review to ascertain whether work performance and inspection requirements were met in the following areas:
tendon installation
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tendon tensioning
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final environmental protection
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Documentary evidence for dome tendons designated D102, 103, 104, 106, and 107, hoop tendons H001 and 002, and vertical tendons V001 and 002 were found in conformance to SS's Installation and Field QA procedure in the following records:
(1)
Receiving / Storage of tendons, Form I-FQA-6.4 (2) Placement of tendons, Form I-FQA-7.6 (3) Placement of anchorages, Form I-FQA-8.4 (4) Tensioning of tendon, Form I-FQA-9.4 (5) Placement of grout cap, Form I-FQA-10.4 (6)
Control of tenden exposure, Form I-FQA-11.5 (7) Daily pregrouting checklist, Form I-FQA-12.4.1 (8) Tendon grouting, Form I-FQA-12. 3.2
'No deficiencies were found in these records, d.
Pertinent records were reviewed to determine whether the materials used to encase the tendons in grout met applicable requirements, (physical and chemical analyses). The following records were found to conform to job specifications and QC procedures for tendons grouted in Septe=ber and October 1976:
(1) Portland Cement, Type II by Medina Cement Co., conformed to ASTM C-150, physical and chemical bin certification and user tested.
(2) SIKA MIX #122 Grout Aid (PT) was certified for gel uniformity, expansion, water retention, bleed time, and amount of bleed within specified temperature limits.
(3) Water and ice were in conformance with ASTM D-512, D-992, and D-516 as to chloride, nitrate, sulfide and sulfate content, and U.S. Public Health standards for potability.
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-- 15-10% of the pertinent records in grouting of doce tendons were c.
reviewed.
The formulation of above ingredients were found in conformance to SS Installation and Field OA Procedure Section 12 as to proportion, tc=perature, =ix time, viscosity, pu=p pressure, and volume pumped.
In addition, as required by specificLtions and procedures, records on grouting at dome
' vent pipe were reviewed.
No discrepancies were identified.
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