IR 05000438/1982001
| ML20041A623 | |
| Person / Time | |
|---|---|
| Site: | Bellefonte  |
| Issue date: | 01/22/1982 |
| From: | Conlon T, Harris J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | |
| Shared Package | |
| ML20041A618 | List: |
| References | |
| 50-438-82-01, 50-438-82-1, 50-439-82-02, 50-439-82-2, NUDOCS 8202220347 | |
| Download: ML20041A623 (4) | |
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j UNITED STATES l
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NUCLEAR REGULATORY COMMISSION 5-E
REGION II
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101 MARIETTA ST., N.W., SUITE 3100 ATLANTA, GEORGIA 30303
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Report Nos. 50-438/82-01 and 50-439/82-01 Licensee:
Tennesse'e Valley Authority 500A Chestnut Street Chattanooga, TN 37401 Facility Name:
Bellefonte Docket Nos. 50-438 and 50-439 License Nos. CPPR-152 and CPPR-153 Inspection at Bellefonte site near Scottsboro, Alabama Inspector:
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.J. RfHarris Date Signed
/- E E-TL Approved by:
e T. E. Conlon, Section Chief Date Signed Engineering Inspection Branch Engineering and Technical Inspection Division SUMMARY Inspection on January 5-8, 1982
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Areas Inspected This routine, unannounced inspection involved 26 inspector-hours on site in the areas of structural concrete, postensioning activities and previously identified
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Results
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I Of the three areas ' inspected, no violations or deviations were identified.
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-i 8202220347 820126 4.I PDR ADOCK 05000438
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REPORT DETAILS 1.
Persons Contacted Licensee. Employees
- W. R. Dahnke,~ Project Manager
"F. Gilbert, Construction Manager
- *D. Nixon, Supervisor. Soils and Concrete Laboratory
- J. T. Barnes, QA Unit Supervisor
- J. H. Olyniec, Superivsor, Civil Engineering Unit Other licensee. employees contacted included five. c'onstruction craftsmen, four technicians and two office personnel.
Other Organizations W. Zmed, QC Inspector, INRYC0 NRC Resident Inspector
- J. D.' Wilcox
- Attended ' exit interview -
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Exit Interview The inspection scope and findings were summarized on January 8,1982,- with -
those persons indicated in paragraph 1 above.
3.
Licensee Action on Previous Inspection Findings (0 pen) Violation (438/81-30-01 and 439/81-30-01) - Improper curing and testing of concrete cylinders.
The entire surfaces of concrete test cylinders 5554A through 5557A and 5554B through 55578 were not being main-
.tained in a moist condition in the curing room as specified by-G-2 and ASTM C-31.
The rate of loading being applied -to concrete test cylinders exceeded the 20-50 psi per second rate specified in G-2 and ASTM C-39.
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inspector. examined the curing room and obse'rved compression testing on concrete test cylinders. Curing of test cylinders is being done' in accord-
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ance with requirements. Observation of compression testing indicated' that i
- the rate of_ loading is still being ~ applied at a rate slightly in excess of the specified 20 -' 50 psi.per second loading rate (50 to' 55 psi per second).
This slightly higher rate of loading would have less than a one percent affect on test results. This item remains open pending NRC's receipt of.the-
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licensee's response te ;he violation and further examination of compression l-testing on concrete test cylinders.
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Unresolved Items Unresolved items were r. t' identified during this inspection.
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Independent Inspection The inspector examinec.'.he following areas:
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Concrete test cylir.4er data from September to date
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Concrete batch plant c.
Soils and concrete laboratory and currentness of calibration of labora-
- tory equipment d.
. Curing and unconfined compression testing of concrete cylinders e.
Placement of concrete pour number R-10-27A in.the Unit 1 secondary _
containment building and associated records.
No violations or deviations were identified.
6.
Containment (Prestressing) - Review of Quality Records - Unit 2 The inspector examined quality. records relating to'the installation of the-Unit 2 containment postensioning system.
Acceptance criteria examined by the inspector appear in the following a.
documents:
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(1) FSAR, Section 3.8
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(2)
INRYC0 Field Inspection Manual (3) TVA Quality Control Procedure BNP-QCP-2.7 (4)
INRYC0 Drawing Numbers 791-204 to 207, 791-209 to 219, 791-213 to 216, 791-217 and 791-228.
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Records examined were as follows:
(1) Stressing records on tendons HF-3, 4, 7, 11, 15,'19, 23, 27, 31,
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25, 47, 51 and 39; FH-4, -8,12,16, 20, 24, 28, 32, 26, 48, 52 and 40; D1-1T, '2T, 2B, 3T,' 4T, 4BT, 5BT, 6TT, and 6 BB;- D2-18, 2B, 3B, 4BT, STT, 588, 6BT and 7TT; V-201,- 2C2, 203, 204, 205, 206, 207, 208, 209, 225, 226, 227, 229, 230, 250, 253, 258, 263, 275, 287, 298, 310, 327, 349 and 350.
(2) Nonconformance report numbers NCR 213FC, 214FC, 215FC, 216FC, 217FC, 207FC, 208FC, 205FC, 204FC,.200FC,189FC and 161FC.
No violations or deviations were identified.
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Licensee Identified Items (10 CFR 50.55(e))
(0 pen) Item (438/81-04-03, 439/81-04-03) - Buttonheads on rock anchorheadt.
Inspection of-the rock anchor tendon anchorheads in Unit 1 indicated some of the tendon wire buttonheads may not be properly seated on the anchorhead.
TVA initially reported this item on September 23,.1980.
Interim reports
. addressing raised.buttonheads were submitted to NRC on. 0ctober 23, 1980, December 29,-1980, April 28, 1981 and October 14, 1981. The next report is to be submitted to NRC by ' January 14, 1982.
(0 pen) Item-(438/81-20-02, 439/81-20-02) - Dimensionally nonconforming anchorage material.
Dimension checks on machining of anchorage ' material disclosed that some anchorage materials are oversized and some are under-sized. TVA is continuing their evaluation and will _ submit their next report to NRC by' January 22, 1982.
(0 pen) Item (438/81-20-04, 439/81-20-04) - Lack of rebar at main steam flued'
head.
TVA initially reported this item on February 27, 1981.
TVA is continuing their evaluation and will submit their next report to NRC by February 24, 1982.
(0 pen) Item (438/81-20-06 an'd 439/81-20-06) - Main _ steam valve Room A pipe
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support. loads.
Applied pipe anchor support loads are' greater than the assumed pipe anchor support loads used in the design of the supporting wall.
TVA is continuing their evaluation of this item and will submit their next report to NRC by February 24, 1982.
-(0 pen)-Item (438/81-20-05) - Lockoff pressure on postensioning system.
A recheck of the lift-off stresses in the Unit I tendons disclosed a signi--
ficant loss of prestress force in several tendons. TVA is conducting tests on the postensioning system and will submit a report to NRC.upon completion-of testing.
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