IR 05000327/1978038
| ML19305A199 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 12/14/1978 |
| From: | Herdt A, Mcfarland C NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | |
| Shared Package | |
| ML19305A198 | List: |
| References | |
| 50-327-78-38, 50-328-78-27, NUDOCS 7901220329 | |
| Download: ML19305A199 (7) | |
Text
{{#Wiki_filter:. UNITED STATES s k" "f Cog NUCLEAR REGULATORY COMMISSION p ,g , R EGION 11 { , t, g - E 101 M ARIETT A STREET. N.W.
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Report Nos.. 50-327/78-38 and 50-328/78-27 Docket Nos. : 50-327 and 50-328 License Nos.. CPPR-72 and CPPR-73 '. Categories: A3 and A2 Licensee: Tennessee Valley Authority 830 Power Building Chattanooga, Tennessee 37401 Facility Name: Sequoyah Nuclear Plant, Units 1 and 2 Inspection at: Daisy, Tennessee Knoxville, Tennessee Inspection conducted: November 28-30, 1978 Inspector: C. R. McFarland Reviewed by: } lt,N. ! )ls- . b: t !I WC'~i i, J L a! 4rA. R. Herdt,' Chief // Date " / Projects Section Reactor Construction and Engineering Support Branch Inspection Summarv . ., Inspection on November 28-30, 1978 (Report Nos. 50-327/78-38 and 50-328/78-27) Areas Inspected: Review and inspection of noncompliances, 10 CFR 50.55(e) items, and inspector follow-up iteras. The inspection involved 21 inspector-hours onsite by one NRC inspector.
Results: No apparent items of noncompliance or deviations were identified.
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. . RII Report Nos. 50-322/78-38 and 50-378/78-27 I-l DETAILS I Prepared by; [[/ / [I'-_,, / f)//4/7g - C. R. McTarland, Principi Jhspector Date d Projects Section Reactor Construction and Engineering Support Branch Dates of Inspectipn: -Novpber 28-30,, 19.78, Reviewed b. [/ /
Y /C.'f/aSc- ,
e-A.'R. Herdt, Chief / 'Date / Projects Section Reactor Construction and Engineering Support Branch 1.
Persons Contacted Tennessee Valley Authority (TVA) G. G. Stack, Project Manager, Sequoyah Nuclear Project (SNP)
- J. E. Wilkins, Construction Engineer
- J. M. Munns, QA Supervisor, SNP
- R. W. Farrell, Supervisor, Quality Engineering Records Unit
- E. C. Pendergrass. Engineer, QC Records Unit (QCRU)
- W. I. Douthard, Nuclear Licensing, Division of Engineering Design (EN DES)
- D. D. McCloud, QA Engineer, Power Production QA H. D. Lollar, Supervisor, Mechanical QC H. J. Fischer, Supervisor, Mechanical Engineering R. C. Mills, Supervisor, Civil Engineering
. I C. F. Brinkleman, Mechanical Engineer R. D. Parsons, QC Inspector, Mechanical J. A. Barbara, QC Inspector, Mechanical R. D. Vickory, Jr., QC Inspector, Mechanical G. B. Lubinski, Supervisor, Electrical Engineering H. Quarles, Elect rical Foreman G. L. Black, Electrical Engineer M. Starzinski, Electrical Engineer
- Denotes those attending exit meeting.
2.
Licensee Action on Previous Inspection Findings a.
(Closed) Item of Noncompliance Infraction, 50-327/77-15 NI, Failure to Protect Equipment.
The inspector reviewed the TVA August 15, 1978 response to Region II and the corrective action steps taken by TVA to correct the problem and to avoid further
. . RII Report Nos. 50-322/78-38 and 50-378/78-27 1-2 noncompliance. The inspector reviewed QC inspection records and observed field installations cf protective devices and supports that protect piping and instrumentation, and records of daily inspections of electrical leads in contact with safety-related systems piping.
Craft employees have been instructed to take appropriate measures to protect all pe rmanent equipment while work is in progress. The construction proc.edures (CP) and the inspection instructions related to these items have been revised ' . to require that the appropriate work be performed and documented as committed to in the TVA letter to Region II dated August 15, 1978.
b.
(Closed) Item of Noncompliance, Infraction 50-327/77-30-01 and 50-328/77-21-01, Inadequate Inspection Acceptance Criteria for Pipe, Cable Tray and Duct Supports. The inspector reviewed the TVA responses to Region II dated March 3, 1978, May 10, 1978, July 17, 1978 and September 15, 1978 that state the commitments to correct the problem and to avoid further noncompliance. The inspector reviewed the applicable inspection instructions that have been revised to provide adequate inspection acceptance criteria, inspection documentation and documentation a f firming inspector training to use gap gauges. The inspector discussed the inf raction and the corrective a c t io-with the Mechanical QC supervisor and representative QC inspectors and records personnel.
The inspector observed typical installations and the use of the gap gauges in the Unit 2 pipe chase, elevations 153 and 690 and the Unit 2 shield wall annulus area at elevation 679.9.
c.
(Closed) Item of Noncompliance, Infraction 50-327/78-10-02 and 50-528/78-07-02, Failure to Apply Specified Curing to Concretc.
The inspector reviewed the TVA May 9, 1978 response to Regioli 11 and the corrective action steps taken by TVA to correct the problem and to avoid further noncompliance. The inspector reviewed inspection documentation and the revised inspection instruction (II) C-1, " Form Removal and Curing" which has QC sign-of f of the curing on the concrete pour card, attachment B of C-1.
Inspection Instruction 95, " Concrete" has been deleted and is replaced by II's B2 through B9 and C1 and C2 to improve the inspection of the concrete.
Craft personnel and the inspectors have been re-instructed in the curing requirements and the new II's.
d.
(Closed) Item of Noncompliance, Infraction 50-327/78-10-03 and 50-328/78-07-03, Incorrect Graduation of Aggregate and Sampling of Concrete. The inspector reviewed the TVA May 9, 1978 response to Region II and the corrective action steps to correct the problems and to avoid further noncompliance.
The requirements for the gradation of the aggregate as specified in TVA's specifi-
. RII Report Nos. 50-322/78-38 and 50-378/78-27 I-3 cation G-2, " Plain and Reinforced Concrete" are incorporated into II B-2, " Free Moisture and Gradation of Fine and Coarse Aggregate" and the requirements for sampling the strength of the concrete as specified in G-2 are now in II B-5, " Concrete Compressive Strength Test".
B-2 and B-5 have been issued November 17, 1978 and replace the former II-95, " Concrete",;.s noted in paragraph 2.c.
Grada-tions are checked at least once a shift and the frequency of '. sampling is being maintained as required by G-2 and II B-5.
More experienced personnel are now inspecting the concrete sampling.
Less concrete is being placed than in March 1978, when the noncom-pliance was cited.
The inspector reviewed inspection documen-tation of recent concrete pours which confirmed compliance with current requirements.
e.
(Closed) Item of Noncompliance, Infraction 50-327/78-14-01, Ineffective Corrective Action to Protect Equipment. The inspector reviewed the TVA responses to Region II dated July 19 and November 9, 1978, and the corrective action steps taken to correct the problem and to avoid further nonconformance.
The inspector reviewed II-32, " Inspection of Material in Storage", Revision 5, October 27, 1978, and Construction Procedures P-6, " Preventative Maintenance for Permanent Equipment", Revision 9, February 10, 1978, Addendum 1, September 27,1978 and P-12, " Storage of QA Material", Revision 8, October 20, 1978.
The inspector reviewed surveillance reports which confirm adherence to the commitments made in the July 19 and November 9, 1978 letters. The inspector observed work related to the subject in several areas in Unit 2 and talkea to various responsible personnel about the ef fectiveness of the corrective action work.
f.
(Closed) Unresolved Item 327/78-19-01 and 328/78-14-03, fce Condenser Protective Coating. The inspector reviewed the painting requirements that have been added to TVA Drawing No. 46W 996-1 on Revision 8, August 24, 1978, as note 8, "Corten steel is not to be painted" Related work is documented in Engineering Change Notice (ECN) 1957, dated June 30, 1978.
g.
(Closed) Unresolved Item 327/78-29-03 and 328/78-20-03, Discrepancy in SNP Procedures.
The inspector reviewed CP P-8, " Quality Assurance Records" that has been revised by Addendum 3, effective date October 3, 197E.
The invalidation method and documentation have been added on Attachment D, " Notice of Invalidation", which includes documenting the reason for invalidatio. . RII Report Nos. 50-322/78-38 and 50-378/78-27 I-4 3.
Unresolved Items There were no new unresolved items noted as a result of this inspection.
4.
Independent Insi_c ion The inspector conducted a walk-through inspection of the Unit I and Unit 2 reactor buildings, the auxiliary building and the general ., support f acilities.
5.
Licensee Identified Items TVA has reported a number of items to Region II as reportable items in compliance with 10 CFR 50.55(e) and the inspector reviewed the items below and the supporting documentation, and discussed the items with responsible staff during the inspection.
(0 pen) Item 327/78-38-01 and 328/78-27-01.
Spent Fuel Make-ur a.
System Seismic Qualifications.
Region II has received the TVA responses dated September 14 and November 3, 1978, NCR HEB 1010.
TVA will install a pe rmanent seismic category I make-up piping system from the refueling water storage tank to the spent fuel storage pool. Work on this item is not complete. This item was not was not inspected.
b.
(0 pen) Item 327/78-38-02 and 328/78-27-02, Qualification Tests of Electrical Penetrations. Region II has received the TVA responses dated August 25 and October 20, 1978, NCR 78-5.
A comparison of additional Westinghouse seismic test data by the TVA Civil Engi-neering Branch has shown that the penetrations as presently constructed will withstand all their design loadings. This item ' was not inspected.
c.
(Open) Item 327/78-38-03 and 328/78-27-03, Grounding of Tempera-ture Controller Power Supply Chassis. Region II has received the TVA responses dated August 17 and November 24, 1978, NCR 1065.
TVA will install a suitable insulator between the fuse clip rivet and the case of the instruments in certain safety-related systems.
Work on this item is not complete. This item was not inspected.
d.
(0 pen) Item 327/78-38-04 and 328/78-27-04, Safety Injection Rate into the Reactor Coolant System. Region II has received the TVA interim response dated October 17, 1978, NCR 1011. Westinghouse has proposed a modified orifice design which should eliminate the cavitation and resultant reduced flow rates in certain safety systems under various test conditions. Another report is scheduled to be submitted December 15, 1978. This item was not inspecte. > RII Report Nos. 50-322/78-38 and 50-378/78-27 I-5 (0 pen) Item 327/78-38-05 and 328/78-27-05, Plant Configuration e.
Drawings. Region II has received the TVA interim response dated October 16, 1978, NCR 2P.
TVA has corrected the specific defici-ency on the RHR system drawings to reflect the actual configura-tion. TVA is investigating a means to prevent future occurrences and to ensure all drawings which are certified as constructed to reflect the actual plant configuration. Work on this item is not , complete. This item was not innpected.
f.
Open Item 327/78-38-06 and 328/78-27-06, Automatic Control Circui-try for Emergency Sump Valves.
Region II has received the TVA response dated October 26, 1978, NCR MEB 1012. TVA has re-designed the automatic switchover schematics to correct the deficiency that permitted the sump valves to fail to open during certain tests.
Work on this item is not complete.
This item was not inspected, g.
(0 pen) Item 327/78-38-07 and 328/78-27-07, Maldistribution of ERCW Flow to CCS Heat Exchangers. Region II has received the TVA response dated November 16, 1978, NCR MEB 78-2.
TVA will modify the control circuitry and add a qualified motor operator to an existing valve to assure proper flow of emergency raw cooling water (ERCW) to the Component Cooling system (CCS) heat exchangers.
A temporary alteration may be necessary for Unit 1.
Work on this item is not complete. This item was not inspected.
h.
(Closed) Item 327/78-09-01 and 328/78-06-02, HVAC Back Draf t Damper. The inspector reviewed the TWA responses to Region II dated February 23, May 8, July 25, August 29, and November 8, 1978, NCR 616. TVA has replaced the two failed backdraft dampe,rs and pe rfo rmed functional testing of the dampers and the 6 bin control room air handling unit. The inspector reviewed 'the test report and the confirming documentation by the design project manager to the chief of the mechanical engineering branch dated October 25, 1978.
i.
(Closed) Item 327/78-09-02 and 328/78-06-03, W-2 Switches, Faulty Contacts. The inspector reviewed the TVA responses to Region 11 dated February 23 and April 21, 1978, NCR 588. TVA has installed new heavy duty switches on re-designed mounting enclosures as documented in the April 21 letter and by ECN 2015, dated August 25, 1978. The inspector reviewed the QC inspection documentation and ECN 2015, and discussed the changes with the electrical engineer.
j.
(Closed) Item 327/78-25-01, Installation of Incorrect CVCS Sole-noid>. The inspector reviewed the TVA response to Region 11
. . RII Report Nos. 50-322/78-38 and 50-378/78-27 I-6 dated September 8, 1978, NCR IP, the QC inspection releases for the nonconforming items, and the release by construction engi-neering dated September 25, 1978.
6.
Inspector Follow-Up Items (IFI) a.
(Closed) IFI 327/78-29-02 and 328/78-20-02,, Piping Penetrations.
, The inspector reviewed the subject of grouted piping penetrations with the mechanical engineers and inspectors and observed various piping penetrations in Unit 2.
II 63, " Piping Inspection", requires the inspector to confirm that the restraints and attach-ments are installed per the drawings and that there are no extra-neous restraints (such as grouting).
b.
(Closed) IFI 327/79 29-04 and 328/78-20-04, NCR's without Documen-tation in the Vault. The inspector reviewed a QCRU audit of the documents in the log versus the documents in the vault.
The administrative instructions have been revised to log only "open" items.
Now, items are "open" until they are in the vault.
A weekly list is compiled of "open" items. Once a month, this list is sent to all engineers responsible for "open" items.
7.
Exit Meeting The inspector met with the licensee representatives (denoted in para-graph 1) on November 30, 1978. The scope of the inspection and the findings were reviewed.
The inspector stressed the need for more traceability of NCR's and 10 CFR 50.55(e) items, especially as the time approaches for Unit I to be operational while Unit 2 remains under construction. Detailed documentation of commitments made in the corrective action for the 10 CFR 50.55(e) items needs to be a part of the NCR closecut records on-site. }}