IR 05000416/1979006
| ML19270G889 | |
| Person / Time | |
|---|---|
| Site: | Grand Gulf  |
| Issue date: | 04/11/1979 |
| From: | Herdt A, Rausch J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | |
| Shared Package | |
| ML19270G885 | List: |
| References | |
| 50-416-79-06, 50-416-79-6, 50-417-79-06, 50-417-79-6, NUDOCS 7906210078 | |
| Download: ML19270G889 (5) | |
Text
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Report Nos. 50-416/79-06 and 50-417/79-06 Licensee: Mississippi Power and Light Company P. O. Box 1640 Jackson, Mississippi 39205 Facility Name:
Grand Gulf Units 1 and 2 Docket Nos. 50-416 and 50-417 License Nos. CP;..-118 and CPPR-119 Inspection at Nuclear Power Plant near Port Gibson, Mississippi Inspector:
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Date Sign'ed
[!A J. K. Raus cri ~ ~ ~
4 /h /'li Approved by:
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A. R. Herdt, Section Chi 6f, RC&ES Branch Dale ' Signed Inspection on March 27 - 29, 1979 Areas Inspected This routine, unannounced inspection involved 22 inspector-ho' irs onsite in the areas of QA Program implementation, storage and laydown areas, turbine building roof, cable tray supports, concrete testing, and snubb-r operation.
Results No apparent items of noncompliance or deviations were identified.
2240 188 7906210018
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DETAILS 1.
Persons Contacted Licensee Employees
- J. C. Fuller, Quality Assurance Representative B. C. Lee, Quality Assurance Representative Other licensee employees contacted included construction craftsmen, technicians, and office personnel.
Other Organizations
- J. R. Valdez, Bechtel Quality Assurance Engineer
- J. W. Yelverton, Betchel Quality Assurance Engineer
- Attended exit interview 2.
Exit Interview The inspection scope and findings were summarized on March 29, 1979 with those persons indicated in Paragraph I above.
Discussion included QA program implementation; storage areas; status of unresolved items, 50.55(e) item, and Part 21 items, and status of the project.
3.
Licensee Action on Previous Inspection Findings a.
(Closed) Unresolved Item 417/78-11-03 Concrete Placement Correlation Testing The licensee deviated from the SAR and ANSI Standard N45.2.5, 1978 in the location and frequency of sampling for testing of air temperature and slump.
The licensee's corrective action has been to revise the specifications to include the requirements.
Specification C-191.0 Rev. 14 requires that " Correlation tests shall be made at the end of the last piece of conveying equipment for the first batch produced each day and for each 200 cubic yards or fraction over 100 cubic yards placed of each class of concrete.
The inspcctor has no further questions regarding this item.
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b.
(Closed) Unresolved Item 417/78-11-02 Acceptance Criteria on Batch Plant In-Process Tests Tests for air temperature and slump at the batch plant on pumped concrete were not being interpreted uniformly by the licensee.
Upon the NRC inspector identifying this condition to the licensee, the civil quality control prepared a training session to address and clarify requirements for concrete correlation frequency testing, concrete placement, and concrete curing. During this inspection the NRC inspector reviewed the training program and the attendance list of those attending on Juny 17, 1978.
Attendance included Quality Control, Pi+*.sburgh Testing, and Field Engineering personnel involve in concrete placement.
The inspector has no further questions regarding this matter.
c.
(Closed) Unresolved Item 416/417/78-19-01 INC Snubber Operation Not Smooth Upon an IE inspector's request, the licensee agreed to investigate the acceptability of these snubbers for safety related application and to provide test results.
An evaluation by Bechtel Project Engineering showed that a lock-up of this snubber would have not overstressed piping or adversely affected adjacent pipe supports.
However, Project Engineering decided not to use the INC snubbers in any safety-related systems on the basis that INC has gone out of business and that these snubbers cannot be replaced.
The inspector has no further questions.
4.
Inspector Follow Up Items (Open) IFI Item 416/417/78-15-07 Conflicts in Procedure RT - XG - 2 a.
MP&L has evaluated the procedur. ' conflicts and determined that a
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revision to the procedure was.eeded.
The revised procedure is under review and at the time of this inspection was returned to the Bechtel offices in San Francisco for further rework.
Upon issuance of the revised RT - XG - 2, Bechtel specification 9645-M-183.0 will be revised.
This it em remains open pending approval of the revised specifications.
b.
(0 pen) Inspection Followup Item 416/78-15-06 Failure to Include All Non-Essential Variables in Welding Procedure - WPS-PI-A-LA did not Include Voltage 2240 190
a-3-MP&L's Discrepancy and Correction Report (D&CR) No. 1097, which identified the problem has been closed and the problem tracking transferred to MP&L's Corrective Action Requests (CAR's) No. 216 and 217. Both CAR 216 and 217 are open pending responses from Bechtel to MP&L. MP&L has granted Bechtel additional time to respond to this item. A response is expected in April 1979.
This item will be followed in subsequent inspections.
5.
Licensee Identified Items (Closed) 50.55(e) Item 416/78-01-02 and 417/78-01-02 Tornado a.
Loading - Turbine Building Roof This reportable deficiency concerns the design of the turbine building roof to withstand design basis tornado wind loads.
MP&L letter AECM-78/66 dated August 28, 1978 submitted a final report which included details fo MP&L's corrective committments.
The corrective actions on Unit 1, strengthening of flcor bracing, floor beam connections and purlin connections has been completed.
The corrective action on Unit 2 included placing an "on hold" order on drawings for the turbine building roof pending revision and reissue. The inspector examined the list of drawings which have been verified as acceptable by Bechtel design for construction of Unit 2 turbine building roof. The hold on these drawings has been removed and the drawings have been released for construction.
The inspector has no further questions regarding this item.
b.
(Closed) 50.55(e) Item 416/78-18-01 Unistrut Type Cable Tray Supports MP&L has advised by their letter of March 22, 1979 that this item is not a reportable deficiency.
The licensee has determined that the spot welds in all Unistrut materials presently at the site, with the exception of one lot, meet the required safety factors. The licensee advised that the unacceptable lot identified by stampings has been isolated from the plant. The IE inspector examined nonconformance Report No.
2351 and the Bechtel Management Corrective Action Report, MCAR-GGNS #39. These reports certify that the corrective action has been completed.
The inspector has no further questions regarding this matter.
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_4-(0 pen) 50.55(e) Item 416/417/79-06-01 Improper Circuit Separation c.
in PGCC The licensee identified the subject item as potentially reportable on March 23, 1979. MP&L believes that there has been inadequate implementation of circuit separation in the G.E. supported Power G.E. has stated that their Generation Control Comples (PGCC).
evaluation indicated that the condition was acceptable.
However, MP&L is G.E. has not been able to produce the evaluation.
investigating and will submit a written report April 4,1979.
d.
(0 pen) 50.55(e) Item 416/417/79-06-02 Inadequate Solder Joints on the 480V Load Center The licensee identified the subject item as potentially reportable 23, 1979. The licensee reported that during testing of on March the Gould ITE supplied 480V load conters, seven static trip units failed to function properly.
Investigation revealed inadequate or incomplete solder joints. The licensee is investigating the problem further and will submit a written report April 23, 1979.
8.
Independent Inspection The inspector examined most areas of Units 1 and 2 to observe construction work and related activities in progress, to inspect the general state of cleanliness, and to examine inplace storage conditions of mechanical and electrical equipment. The inspector traveled through the reactor buildings and auxiliary buildings to observe the general condition and protection of piping subassemblies, cable trays, pumps and other safety related equipment.
No items of noncompliance or deviations were identified.
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