IR 05000269/1979019
| ML19249E980 | |
| Person / Time | |
|---|---|
| Site: | Oconee  |
| Issue date: | 08/20/1979 |
| From: | Economos N, Herdt A, Kleinsorge W NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | |
| Shared Package | |
| ML19249E970 | List: |
| References | |
| 50-269-79-19, 50-270-79-17, 50-287-79-19, NUDOCS 7910020823 | |
| Download: ML19249E980 (6) | |
Text
.
.
/'ea atc,
o o
UNITED STATES 8'
' 't NUCLEAR REGULATORY COMMISSION
$ ')\\ *g 3,.
1 $
REGION 11
0, d
101 MARIETTA sT., N.W., sulTE 3100
'
%,'be j'
ATLadTA, GF.ORGI A 30303
.....
Report Nos. 50-269/79-19, 50-270/79-17 and 50-287/79-19 Licensee: Duke Power Company 422 South Church Stree.t Charlotte, North Carolina 28242 Facility Name: Oconee, Units 1, 2 and 3 Docket Nos. 50-269, 50-270 and 50-287 License Nos.
DPR-38, DPR-47 and DPR-55 Inspected at Oconee, Seneca..Sogth Carolina Inspected by:
em<
m ev
</2 k
'
N. Ec'
s/ - /
/ Da e Signed
,4. L,
,, p S' /7/py
,_
'/ W. N 4(1~einkfrgh y
' D te Signed
'
Approved by:
T !
00 7f A. R. Herdt, Section Chief, RCES Branch
/ Dafe Signed SUMMARY Inspected on July 23-26, 1979.
Areas Inspected This routine, unsanounced inspection involved 45 inspector-hours onsite by two NRC inspectors in the areas of Emergency feedwater modification welding, non-destructive examinations (NPL) and record review in Units 1, 2 and 3.
Results No items of noncompliance or deviations were identified.
1074 056 793003o
.
.
DETAILS 1.
Persons Contacted Licensee Employees
- J. E. Smith, Station Manager
- Bill Martin, Station Maintenance
- R. J. Brackett, Station Senior QA Engineer
- J. J. McCool, QA Surveillance Supervisor
- D.
J. Vito, Licensing R. T. Bond, Technical Services Engineer J. E. Hendricks, Pipe Foreman S. Watkins, Foreman QC NRC Resident Inspector
- F. Jape
- Attended exit interview 2.
Exit Interview The inspection scope and findings were summarized on July 26, 1979 with those persons indicated in Paragraph 1 above.
The inspector identified the areas inspected which included welding, NDE and record review for the emergency feedwater modifications on Units 1, 2, and 3.
The licensee concurred with the inspection findings.
3.
Licensee Action on Previous Inspection Findings Not inspected.
4.
Unresolved Items Unresolved items were not identified during this inspection.
5.
Emergency Feedwater System Modification (Units 1, 2 and 3)
This inspection effort was performed in order to complete the inspection of welding and NDE activities ralative to the feedwater system modification in Oconee Units 1, 2 and 3.
Inspection of this area was initiated on a previous inspection documented in RII:50-269, -270, -287/79-13, -14, -14.
The modification is being performed under Nuclear Station Modification Process Record No. 1275. Field activities
'
are controlled thru Station Directives and ren i QA/QC procedures dis-cussed in the aforementioned RII:IE report. The governing code for fabrication installation and testing is ANSI Power Piping B31.1, 1969 Edition. Weld Procedure and welder performance qualifications are 10 7.4 05 ~/
.
.
-2-
.
controlled by ASME Section IX.
System modifications were depicted on engineering drawing No. 0-2400A revision 31.
a.
Completion Status Unit 3:
Work completed except for repairs on three welds, 133-1 and 133-9 10" on ISO-133 and S13-12 20" on ISO-52 Unit 2:
Tie in to existing lines remains to be done.
Unit 1:
Work in progress b.
Work Observation - Welding Completed and in process welds selected at random were inspected for workmanship, procedural and code requirements.
The welds selected were as follows:
Weld ISO Size Condition Unit 3 133-9 133 Rev.8 10"x.365 Repair S13-12
20"x.375 Repair 133-1 133 Rev. 8 10"x.365 Repair These repairs made because of lack of penetration at the root of the weld. For these welds, the inspector checked the ground-out area and reviewed related QC records.
Weld No. 133-9 was inspected again after the root had been repair welded.
Weld ISO Size Condition FW-25 131 Rev. 3 6"x.432 Fit-up/ tacked FW-6 129 Rev. 1 6"x.432 welding out after completion Unit 1 03A-131-25 131 6"sch. 80 Completed 03A-130-13 130 6" sch. 80 Completed 038-130-12 130 6" sch. 80 Completed 03A-130-11 130 6" sch. 80 Completed 1074 058
.
.
-3-
.
03A-131-10 131 6" sch. 80 Completed 03A-131-11 131 6" sch. 80 Completed 03A-131-12 131 6" sch. 80 Completed 03A-131-7 131 6" sch. 80 Completed 03A-130-7 130 6" sch. 80 Completed 03A-131-12 131 6" sch. 80 Completed 03A-131-7 131 6"sch. 80 Completed 03A-130-7 130 6" sch. 80 Completed 03A-129-12 129 6" sch. 80 Completed 03A-138-8 138 12"sch. 40 Completed The above welds were examined for bead uniformity and height, undercut, arc strikes and cleanliness. Weld tickets as well as weld rod slips were checked for completeness and accuracy.
In addition the inspector checked the newly installed line sections, from the emergency feedwater pumps A and B to the existing line tie-ins, against applicable line drawing number 0-2400A Revision 31 dated 5-3-79 to ascertain whether the as-built tondition was in agreement with that shown on the drawing.
Within the areas inspected no items of noncompliance were identified.
c.
Welding Electrode Control Station directive 3.6.1(M) revision 4/24/79 establishes requirements for the storage, control and issuance of welding consummables.
In order to determine whether procedural requirements were being adhered te, the inspector inspected the central storage area, material issue station and interviewed the station attendant.
Material (electrode)
certifications and receipt inspection reports of newly received and issued material was reviewed for compliance with applicable specifi-cation and code requirements. Material selected for this effort was as follows:
E7018 5/32" Ht#422C5071 E7018 3/32" Ht#421E5462 308 1/8" Ht#17233C Within this area the inspector noted that in certain instances issued material, (electrodes) stored in welder's leather pouches, had been left unattended in work areas during work-break periods.
In discussing this matter with the licensee, the inspector stated that this practice raised the possibility of material issued to one welder being used by another such
}O/4 0b9
.
-
-4-as, in the case where the latter may need a small amount to complete a weld.
In such a case, this would constitute loss of material control.
However, upon a review of the procedure it was noted that it imposes no responsibility nor does it provide specific guidance to the welder for controling the material issued him e.g., attach leather pouch to the belt.
The licensee stated that welders are instructed on electrode control during training and that to their knowledge there is no record of a welder using material issued to someone else. The licensee agreed to pursue this matter further and determine what type of actions is needed.
This matter was identified as an inspector followup item and assigned number 50-269, -270,
-287/79-19, 79-17, 79-19.
" Electrode material control."
6.
Emergency Feedwater Hangers - Welding (Unit 3)
Newly fabricated and installed hangers on tue modified emergency feedwater system section were checked against design drawings and hanger sketches for location, orientation, type and workmanship.
Detail inspection was performed on the following:
Hange System H-66 Condensate Suction Emergency Feedwater side H-236 Emergency Feedwater Discharge side H-235 Emergency Feedwater Discharge side During this inspection the inspector noted that hanger No. H-123 on an exiting 6.0" feedwater line, did not have adequate tension.
This was brought to the attention of appropriate personnel who took the necessary corrective action and upon inspection for others having the same condition assured the inspector this was an isolated case.
No items of noncompliance or deviations were identified.
7.
Record Review and Evaluation, Emergency Feedwater Modifications - (Unit 3)
Fabrication and material quality records from an installed portion of the discharge emergency feedwater water line on ISO-113 revision 3, were reviewed for completeness accuracy and where applicable, code compliance.
The portion included prefabricated spool piece Nos. D22, D23, D24, D25 and D26.
In addition the inspector reviewed radiographs of randomly selected field welds.
These were as follows:
Weld No.
ISO Size FW-9 133 10"x.365" FW-14A
20"x.594 1074 060
-
.
.
-5-
.
FW-12
20"x.375 FW-1 133 10"x.365" FW-11 133 10"x.365 FW-10 133 10"x.365 FW-2 133 10"x.365 Within the areas inspected no items of noncompliance or deviations were identified.
8.
Steam Generator Tube Leak (Unit 1)
While discussing plant status the licensee's representative stated that an apparent tube leak in once thru steam generator (OTSG) "B" of Unit I had forced them to shut down the reactor. At the time of this inspection efforts were underway to cool down the OTSG to pernit installation of eddy current and tube plugging equipment. The number of tubes that were going to be examined were not known at this time.
., ! I b