IR 05000566/1981004
| ML20004E895 | |
| Person / Time | |
|---|---|
| Site: | Yellow Creek  |
| Issue date: | 05/01/1981 |
| From: | Crowley B, Herdt A NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | |
| Shared Package | |
| ML20004E894 | List: |
| References | |
| 50-566-81-04, 50-566-81-4, 50-567-81-04, 50-567-81-4, NUDOCS 8106160104 | |
| Download: ML20004E895 (7) | |
Text
.. _...
_
..
.
UNITED STATES
NUCLEAR REGULATORY COMMISSION
~
n
E REGION li e,
[
101 MARIETTA ST., N.W. *tulTE 3100 g
/
ATLANTA, GEORGIA 30303
.....
Ov Report Nos. 50-566/81-04 and 50-567/81-04 Licensee:
Tennessee Valley Authority 500A Chestnut Street Chattanooga, TN 37401 Facility Name:
Yellow Creek Docket Nos. 50-566 and 50-567 License Nos. CPPR-172 and CPPR-173 Inspection at Y 11 w reek site near Iuka, Mississippi Inspect
' 8/
B. R. Crowley Date ' Signed
~
8//[f/
Approved by:
A. R. Herdt, Section Chief Date' signed Engineering Inspection Branch Engine <aring and Technical Inspection Division SUMMARY Inspected on April 13-15, 1981 Areas Inspected This routine, unannounced. inspection involved 25 inspector-hours on site in the
.
l areas of steel structures and supports (Units 1 and 2), safety-related piping l
(Unit 1), previous inspection findings (Units 1 and 2), and licensee identified (50.55(e)) items (Units 1 and 2).
Results l
l Of the areas inspected, no violations or deviations were identified.
l 8106160lDY
. -
.-
_-.
..
. -
.
- -
...
.
.-.
.
.
REf 0RT DETAILS 1.
Persons Contacted Licensee Employees
- M. M. Price, Project Manager
- L. S. Cox, Construction Engineer
- C. G. Wages, Assistant Construction Engineer - QC
- S. A. Radlein, Welding Engineer R. A. Polehn, Systems Mechanical Engineer - PE Other licensee employees contacted included construction craftsmen, QC inspectors, security force members, office personnel.
Other Organizations G. Holloway, Office QA Supervisor, Chicago Bridge and Iron
,
- Attended exit interview 2.
Exit Interview-The inspection scope and findings were summarized on April 15, 1981 with those persons indicated in paragraph I above.
3.
Licensee Action on Previous Inspection Findings j
(Closed) Unresolved Item 566, 567/81-02-03, Weld records do not reflect all WPS and weld filler materials. This item pertained to the weld records only
'
l reflecting welding procedure and welding filler material used at time of i
fitup and not for remainder of weld.
The program has been changed to l
specify only cna detail weld precedure for a joint. If it is desired to use I
a different procedure, a change to the detail weld procedure number will be made on the joint record and approved by the welding engineer. The welding material entered ca the fitup card is the material issued for the entire
,
!
joint, not just the fitup. A change has been issued to require that the material also be entered on the back of the operations check list. Also, any change in material, as noted by tne surveillance QC inspector, is to be entered on the back of the operations check list. This matter is considered resolved.
(Closed) Unresolved Item 566, 567/81-02-04, Nonretrievable CMTR and receiving inspection report. The CMTR and receiving inspection report had
,
been located. The inspector reviewed these reports for compliance with code
'
. - - -.....,
.
- -..,
.., _ _,..
. _, _ _ _. - _ _ _ _.,, _,- _,..,_ ___,_
_ _ _ _, _ _ _ _ _
, _ _ _,_ _ _ _ _
_
.
.
and procedure requirements. It should be noted that the correct heat number was 0C10B/4 instead of OC18/4 as stated in IE:II report 50-566, 567/64-02.
(Closed) Unresolved Item 566, 567/81-01-01, Generic concern for vendor inspectors' visual inspection of welds. This item has been identified as a 50.55(e) item and will be followed through inspections of the 50.55(e)
reported actions. See paragraph 6.a. for a description cf the item.
(Closed) Unresolved item 566, 557/80-13-01, Disposition to QCIRs. This item pertained to QCIRs where the corrective action did not clearly explain the resolution of the problem identified. The two QCIRs questioned have been clarified and all QCIRs issued to date have been reviewed by the licensee for completeness and clarity. The inspector reviewed a sample of 18 QCIRs reviewed by the licensee including QCIRs found to be acceptable and those found to need clarification. This item is considered resolved.
4.
Unresolved Items Unresolved items were not identified during this inspection.
-
5.
Independent Inspection Effort (Unit 1)
A general plant tour was made and general construction activities and conditions such as housekeeping, welding, and rebar placement were observed in reactor, auxiliary, fuel, and control buildings. In addition, the pipe fabrication shop was inspected. No safety-related welding or fitting was in process in the shop.
Within the areas inspected, no violations or deviations were identified.
6.
Licensee Identified Items (50.55(e))
Prior to this inspection, the licensee identified the following items
,,
l considered reportable under 10 CFR 50.55(e):
a.
(0 pen) Item 566, 567/81-04-01, Source inspection problems (NCR YCN QAB i
8101).
On January 20, 1981, TVA notified IE:II of a 50.55(e) item concerning welds being found rejectable at the job site after being released from the vendor shops by TVA's source inspectors. Ar interim t
l report was submitted on February 19, 1981. TVA anticipates submitting l
another report by June 23, 1981.
b.
(0 pen) Item 566, 567/81-04-02, Deficient welds on component cooling water heat exchangers (NCR YC-160). On March 6,1981, TVA notified IE:II of a 50.55(e) item concerning deficient welds on component cooling heat exchangers. An interim report was submitted on April 7, 1981. TVA anticipates submitting another report by October 6,1981.
c.
(0 pen) Item 566, 567/80-16-01, Deficient welds on Gas Stripper Module.
On October 8,1980, TVA notified IE:II of a 50.55(e) item concerning deficient welds on the gas stripper module. Interim reports were l
l
!
'
_.
._
_,
__
..
..
.. -
_-.
.
.-
submitted November 6,1980 and February 5,1981. 1he final Construc-tion Deficiency Report was submitted on March 31, 1981. The report has been reviewed and determined to be unacceptable by RII because corrective actions are not identified to prevent future identical or similar occurrences.
It should be noted that to prevent future occurrences, the causes of the deficiency must be fully explored and identified.
The licensee (T. Price, NEB-Licensing) agreed to supple-ment the report with additional corrective action. At the time of the inspection, the module was being removed for shipment to vendor for correction. This item remains open pending completion of repairs and receipt and review of supplemental information.
Within the areas inspected, no violations or deviations were identified.
7.
Inspector. Followup Items (IFI)
(Closed) Item 567/80-01-02, Additional information requested for evaluation of component coeling water heat exchanger nozzle welds. The licensee has evaluated the welds in question to the applicable code (ASME,Section III, Subsection ND) and the vendor procedure and determined the welds to be rejectable. This has been reported as a 50.55(e) item (see paragraph 6.b.
above) and will be followed under 50.55(e) reporting requirements.
This item is closed.
(Closed) Item 566/80-09-01, Deficient weld on control building structural stee. This item was reported as a 50.55(e) item and is being followed under item number 566/567/80-11-01.
Within the areas inspected, no violations or deviations were identified.
8.
Steel Structures ar;d Supports - Observation of Welding Activities (Units 1 and 2)
The inspector observed welding activities for steel structures and supports as described below to determine whether applicable code and procedure requirements were being met.
!
a.
Structural Field Welds Outside Containment (Unit 1)
{
The applicable code for control building fabrication is the AWS l
Structural Welding Code D1.1-72 with addenda through 1974.
The inspector observed weld FF-Identifer 0460-038-002 on Drawing 4CE0603-C2-01-R01 during final surface preparation after welding.
The work was examined to determine whether:
(1) Work is conducted in accordance with a document which coordinates
and sequences operations, references procedure, establishes hold
points, and provides for production and inspection approval.
i l
-.
. --
.
-.
.
_
.
- - -
. - -
-
__
.
%
-
F
,
(2) Weld identification and location are as specified.
(3) Procedures, drawings, and other instruction are at the work station and readily available.
(4) WPS assignment 'is in accordance with applicable code requirements.
(5) Welding technique and sequence are specified and adhered to.
(6) Welding filler materials are the specified type and traceable to certifications.
(7) Alignment of parts is as specified.
(8) Electrodes are used in positions and with electrical characterts-tics specified.
(9) Welding equipment is in good condition.
(10) Temporary attachment is removed in accordance with applicable procedures.
(11) Weld history records are adequate.
b.
Structural Field Welds Within Containment (Unit 2)
The applicable code for containment welding is the ASME Boiler and Pressure Vessel Code,Section III, Subsection NE,1974 Edition with addenda through S76.
The following welds.were observed at various stages of completion:
Assembly Seam Status E22 A2 Welding and side E22 Al Weld finished C25 285-A-2 Welding inside groove C25 288-A-7 Preparing backgouge C27 281-A-41 Welding outside groove The inspector examined this work to determine whether:
(1) Work is conducted in accordance with a document which coordinates and sequences operations, references procedures, establishes hold points, and provides for production and inspection approval.
(2) Procedures, drawings, and other instructions are at the work station and readily available.
(3) Welding technique and sequence are specified and adhered to.
r e
w
.
(4) Weld joint geometry is in accordance with applicable procedure and inspected.
(5) Electrodes are used in positions and with electrical characteris-tics specified.
(6) Welding equipment is in good working condition.
c.
Welder Qualification (Unit 2)
The inspector reviewed qualification status records and initial qualification records for the welders working on the welds of paragraph b. above.
d.
Nondestructive Examination (Unit 2)
The inspector observed magnetic particle (MT) examination in process on a base material grindout near penetration weld 281-A-24.
Personnel qualification records for the MT examiner were reviewed.
Within the areas inspected, no violations or deviations were identified.
8.
Safety-Related Piping (Unit 1)
The inspector examined the work activities for safety-related piping as described below to determine whether applicable code and procedure require-ments were being met. The applicable code for this welding is the ASME Boiler and Pressure Vessel Code,Section III, Subsections NC and ND,1974 Edition with addenda through S76.
.
a.
Observation of Non-Welding Activities
,
Observation of specific work activities were conducted to determine conformance, where applicable, with:
inspection and/or work pro-cedures, recordkeeping requirements, installation specifications or plans, use of specified materials, use of specified NDE, calibration
I and use of proper test equipment and use of qualified inspection and
'
NDE personnel.
Activity Component Procedure Hydrostatic Testing Piping Assy G29M-Process 1NM-MPIP-8000 Spec. 3.M.9.1.C; (Fuel Pool Cooling)
QCI-520, Rev. 4
l Marking Piping Assy QCI N-501, Rev. 4; 1NM-MPIP-8000 CEP 2.11, Rev. 5; (Fuel Pool Cooling)
CEP 8.01, Rev. 3; S0P 18 l
-
. _
--
- - ___- -
-.
_.
- - - _..
-.
..
-
.--
.-
-
,
.
-
b.
Visual Inspection of Welds The inspector visually examined completed and accepted safety-related welds as described below to determine whether applicable code and procedure requirements were being met.
(1) The following welds were examined relative to the following:
location, length, size and shape; weld surface finish and appearance, including inside diameter of pipe welds when access-ible; transitions between different wall thickness; weld reinforcement--height and appearance; joint configurations of permanent attachments and structural supports; removal of temporary attachments; arc strikes and weld spatter; finish-grinding or machining of weld surface--surface finish and absence of wall thinning; surface defects--cracks, laps, lack of pene-tration, lack of fusion, porosity, slag, oxide film and under cut exceeding prescribed limits.
Weld No.
Assembly No.
System 8000 INM-MPIP-8000 Fuel Pool Cooling 8002 INM-MPIP-8000 Fuel Pool Cooling 8003 INM-MPlP-8000 Fuel Pool Cooling 8004 1NM-MPIP-8000 Fuel Pool Cooling c.
Welding Filler Material Control Welding material purchasing and receiving records for the following materials were reviewed for conformance with applicable procedures and code requirements:
Process Type Size Heat GTAW E70S-6 1/16", 3/32", 1/8" 658C253
,
SMAW E7018 1/8" N96733 Welding material issue station number.1 was inspected for compliance with procedures for storage and issue ofwelding material.
Within the areas inspected, no violations or deviations were identified.
..
-. _..
-
- - - -___,.- - _ -
-
, - _ _. _ - - - _.. _ - _ -. -. _ -..
_