IR 05000438/1982008
| ML20051C962 | |
| Person / Time | |
|---|---|
| Site: | Bellefonte  |
| Issue date: | 04/16/1982 |
| From: | Conlon T, Harris J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | |
| Shared Package | |
| ML20051C802 | List: |
| References | |
| 50-438-82-08, 50-438-82-8, 50-439-82-08, 50-439-82-8, NUDOCS 8205140550 | |
| Download: ML20051C962 (4) | |
Text
M.
.
.#
?t UNITED STATES
[9
%
NUCLEAR REGULATORY COMMISSION
- 5
REGION 11
"
f 101 MARIETTA ST., N.W., SUITE 3100 ATLANTA, GEORGIA 30303
-
Report Nos. 50-430/82-08, 50-439/82-08 Licensee:
Tennessee Valley Authority 500A Chestnut Street Tower II Chattanooga, Tennessee 37401 Facility Namc:
Bellefonte Docket Nos. 50-438, 50-439 License Nos. CPPR-122, CPPR-123 Inspection at Bellefonte Facility Y-/d~ N Inspector:
M
"
'
J. R. Harris Date Signed Approved by:
Y'/ d - N T. E. Conlon, Section Chief Date Signed Engineering Inspection Branch Division of Engineering and Technical Programs SUMMARY Inspection on March 30 to April 2,1982 Areas Inspected This routine, unannounced inspection involved 26 inspector-hours on site in the areas of structural concrete, postensioning activities and previously identified items.
Results Of the three areas inspected, no violations or deviations were identified.
8205140550 820422 PDR ADOCK 05000439 O
.
..
.
(
REPORT DETAILS 1.
Persons Contacted Licensee Employees
- W. R. Dahnke, Project Manager
- F. Giblert, Construction Manager
- J. H. Olyniec, Supervisor, Civil Engineering Unit
- D. Nixon, Supervisor Soils and Concrete Laboratory
- R. Norris, Assistant Supervisor, Civil Engineering Unit
- D. C. Norris, Civil Engineer, Civil Engineering Unit Other licensee employees contacted included three construction craftsmen, four technicians and three office persennel.
Other Organizations
.
.
W. Zmed, QC Inspector, INRYC0 NRC Risident Inspector
"J. D. Wilcox
- Attended exit interview
'
2.
Exit Interview The inspection scope and findings were summarized on April 2,1982, with those persons indicated in paragraph 1 above.
3.
Licensee Action on Previous Inspection Findings Not inspected.
4.
Unresolved Items Unresolved items were not identified during this inspection.
5.
Independent Inspection The inspecto: examined the following areas:
a.
Soils and concrete laboratory and currentness of calibration of laboratory equipment b.
Concrete batch plant
-..,.
-
_. _
-
-
.
t
c.
Control on concrete repairs to pour numbers A15-5CR, A15-5dR, A27-5ba, A27-5bb, A30-F6, A30-F7 and A30-F8 No violations or deviations were identified.
6.
Containment (Prestressing) - Review of Quality Records - Unit 1 The inspector examined quality records for restressing of the 113 FWC horizontal tendons in unit one.
Restressing of these tendons was recom-mended when a recheck of the original lift-off stresses disclosed a significant loss of pretress force. The loss of pretress force was reported by the licensee to NRC on July 17, 1981 and is being tracked under Licensee Identified Item number 438/81-20-05. Acceptance criteria examined by the inspector appear in the following documents:
a.
FSAR, Section 3.8 b.
INRYC0 Field Inspection Manual
,
c.
TVA Procedure BNP-QCP-2.7 d.
FCR-033, Restressing of 113 Unit One FWC Tendons Examination of stressing cards for the 113 FWC horizontal tendons showed that restressing was done in accordance with accepteble criteria. Evalu-
.
ation of restressing operations will be presented to NRC in TVA's next
'
interim report.
No violations or deviations were identified.
7.
Licensee Identified Items (10 CFR 50.55(e))
Closed Item (438/81-04-03, 439/81-04-3) - Buttonheads On Rock Anchorheads.
Inspection of the rock anchor tendon anchorheads in Unit One 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 October 23, 1980, December 29, 1980, April 28, 1981 and October 14, 1981.
The inspector examined TVA's final report dated January 18, 1982. Inspection of each rock anchorhead in Unit One and Unit Two (185 rock anchorheads in each unit)
indicated that there were no wire failures and that the raised button heads ~
were oversized button heads that were effectively seated on adjacent buttonheads. This item is closed.
(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 April 15, 198...,
,
4 t-
,
(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 April 22, 1982.
(0 pen) Item (438/81-20-06 and 439/81-20-06) - Main Steam Valve Room.A pipe 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 April 22, 1982.
(0 pen) Item (438/81-20-05) - Lockoff pressure on postensioning system.
A recheck of the lift-off stresses in the Unit 1 tendons disclosed a significant 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.
!
r-1
,
f i
.
.
,....,,,, -., -,,.,.. - -.. -,.. - - - - - - -,.
-n.._.., - -
,.,..,n..n
. - -,
-.. -..,..
-