IR 05000341/1979008
| ML19274F107 | |
| Person / Time | |
|---|---|
| Site: | Fermi  |
| Issue date: | 04/05/1979 |
| From: | Danielson D, Eric Lee NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | |
| Shared Package | |
| ML19274F105 | List: |
| References | |
| 50-341-79-08, 50-341-79-8, NUDOCS 7906130143 | |
| Download: ML19274F107 (8) | |
Text
{{#Wiki_filter:. U.S. NUCLEAR REGULATORY CO:4 MISSION OFFICE OF INSPECTION AND ENFORCEMENT
REGION III
Report No. 50-341/79-08 Docket No. 50-341 License No. CPPR-87 Licensee: The Detroit Edison Company 2000 Second Avenue Detroit, MI 48226 Facility Name: Enrico Fermi, Unit 2 Inspection At: Enrico Fermi Site, Monroe, Michigan Inspection Conducted: March 27-30, 1979 s!;!77 /j. / G -- Inspector: E. W. K.
ee " I l,. l-{ - ~ _[ , Approved By: D. H. Danielson, Chief
- *///
Engineering Support Section 2 Inspection Summary Inspection on March 27-30,1979 (Report No. 50-341/79-08) Areas Inspected: Reactor Coolant Pressure Boundary and Safety Related Piping work activities, welding activities and records; torus modification; previously identified noncompliance and unresolved items.
The inspection involved a total of 24 inspector hours onsite by one h3C inspector.
Results: Of the nine areas inspected, one apparent item of noncompliance was identified in one area (infraction - failure to follow procedure - Paragraph 4.a).
790613oy93
.
DETAILS Persons Contacted Principal Licensee Employees
- A.
Alexious, Assistant Project Superintendent
- C.
R.
Bacon, Field Project Engineer
- R.
W.
Barr, Project QA Director G. Carter, QA Engineer
- W. M. Everett, Project Superintendent
- E.
Hines, Assistant Vice President and Manager, QA
- H. A. Walker, Site Project QA Engineer Other Personnel
- C.
B. Bliesener, Administration Assistant to Project Manager, Daniel Internation Corporation (DIC)
- J.
Bolt, Project QA Manager, DIC J. W. Flaherty, Welding Engineer, Wismer and Becket Contracting Engineers (W&B)
- L.
Holland, Project Manager, W&B
- C.
Keller, Project Quality Manager, W&B
- C.
W. Kostbade, Assistant QC Manager, DIC H. W. Levering, Drywell Dicipline Manager, DIC
- L.
W. Osborne, QA Engineer, W6B The inspector also talked with and interviewed several other licensee and contractor employees, including members of the quality, technical, engineering staffs and craftsmen.
- Denotes those attending the exit interview.
Licensee Action on Previously Identified Items (Open) Noncompliance (341/78-16-01): Failure to identify, report and take corrective action relative to the repair of weld No. E21-3147-0W2 on drawing No. 6M721-3147-1: The inspector was informed that the weld had been repaired but NDE had not been performed.
(Open) Unresolved Item (3t1/78-16-02): Magnetic Particle Reports: The licensee is negotiating with his contractor relative to the record keeping of the MT reports.
(Open) Unresolved Item (341/78-16-03): Piping Material Certification: The inspector reviewed Detroit Edison Company letter No. EF2-44243 and questioned Items 1 and 2.
Furthermore, the letter does not address all the questions identified in the original repcrt. The licensee agreed to provide additional information.
-2-
. . Functional or Program Areas Inspected 1.
Torus Modification The inspector toured the inside and outside of the torus.
Several welders were welding the mitigating beam to the torus shell.
The inspector determined that (a) housekeeping was reasonably main-tained; (b) the appearance of the finished welds appear to be acceptable; and (c) preheat requirements were maintained as required by procedures.
No items of noncompliance or deviations were identified.
2.
Reactor Coolant Pressure Boundary Piping - Observation of Work and Work Activities The inspector observed the following installed piping runs: a.
Core Spray System on drawing No. 6M721-3052-1 between penetration No. X-16B and valve No. V8-2025.
b.
Residual Heat Removal System on drawing No. 6M721-2298-1 between penetration No. X13-B and valve No. V8-2165.
The inspector determined that the pipe runs were installed in accordance with the drawings.
No items of noncompliance or deviations were identified.
3.
Reactor Coolant Pressure Boundary and Safety Related Piping - Welding Material Control a.
Review of Documents The inspector reviewed the following documents: (1) W&B Procedure No. WB-E-101, Rev. 7, " Control of Welding Material."
(2) W&B Procedure No. WB-Q-115, Rev. 1, " Receiving Inspection."
(3) W6B Procedure No. WB-A-107, Rev. 3, " Procurement of Permanent Material, Equipment and Services."
(4) Receiving Inspection Report, Purchase Order and Material Certification for ER308 welding rod with heats No.
C4195T308 and No. D4195T308; ER309 welding rod with heats No. C4183T309 and No. D4196T309; E70S-2 welding rod with heats No. C4250B131 and No. D4250B131; E7018 electrode-3-
. with heats No. 422C3051 and No. 421C4281; K-type consumable inserts with lots No. 3789B131 and No. 3548R308; E308-15 electrode with lots No. 9ASC Mix 31, No. 9A20B Mix 6 and No. 8F27B Mix 6A; and E309-16 electrode wi;h lots No.
7N4C Mix 31 and No. 8K3B Mix 3.
It was determined that the above documents met the PSAR, 10 CFR 50, Appendix B and the applicable code requirements.
b.
Control of Materials The inspector visited the welding material issuing station.
It was determined that (1) the welding materials are properly identified and segregated except for five consumable inserts which were not tagged and were subsequently destroyed; (2) the temperature of the rod ovens is maintained; (3) records are properly kept;(4) issuance and return of welding materials are controlled in accordance with approved procedures.
No items of noncompliance or deviations were identified.
4.
Reactor Coolant Pressure Boundary Pipine - Visual Examination of Welds a.
Visual Examination The inspector visually examined the following completed welds: (1) Residual Heat Removal System welds No. Ell-2298-0W2, No. E11-2298-2W3, No. E11-2298-3W4, No. E11-2298-0W5 and No. Ell-2298-5WO.
(2) Core Spray System welds No. E21-3052-0W2, No. E21-3052-2WO, No. E21-3052-0W3 and No. E21-3052-3WO.
(3) Reactor Water Clean-up System welds No. G33-3096-3W0 and G33-3096-0W3.
It was determined that (a) weld surface finish and appearance were acceptable and there was no evidence of wall thinning due to grinding; (b) arc strikes and weld spatter were not evident; and (c) a ground out area of approximately 4" long and between 1/8" to 1/4" deep is located in the base metal adjacent to weld No. G33-3096-0W3. Upon questioning the licensee and reviewing the record, the inspector established that a linear indication was identified in the base metal adjacent to the weld when liquid penetrant examination was performed on the weld. Subsequently, W&B initiated a Deviction-4-
. . Disposition Request (DDR No. 188) to authorize the repair of the indication in accordance with W&B procedure No. WB-C-110.
Upon reviewing of DDR No. 188, the inspector noted that the DDR was closed out, however, ultrasonic testing to determine the remaining wall thickness was not performed, furthermore, the ground out area was not blended into the surrounding area as required by W6B procedure No. WB-C-110.
This condition represents a noncompliance item identified in Appendix A.
(341/79-08-01) b.
Review of Records The inspector reviewed weld data sheets for the following welds: (1) Residual Heat Removal System welds No. E11-2298-2W3 and No. E11-2298-5WO.
(2) Core Spray System welds No. E21-3052-3WO and No.
E21-3052-2W0.
(3) Reactor Water Clean-up System welds No. G33-3096-3WO and G33-3096-0W3.
It was determined that (a) spec..fied inspections were completed; (b) records are clear and legible; (c) final QA review has not been perf ormed; &nd (d) the signed of f copy of weld data sheet for weld No. E21-3052-3WO was unavailable. A DDR was initiated on this matter. This inspector stated this matter is considered unrevolved pending a review during a subsequent inspection.
(341/79-08-02) Except as noted, no items cf noncompliance or deviatione were identified.
5.
Reactor Coolant Pressure Boundary and Safety Related Piping - Welder Qualfication The inspector reviesed the following documents: W&b Procedure No. WB-E-118, Rev. 6. " Welder and Brazer a.
Oualification."
b.
Twenty qualifications records of welders who performed velds identified in Paragraphs 4, 7 and 8 of this report.
The inspector determined that the above documents met the requirements of ASME B&PV Code Section IX.
No items of noncompliance or deviations were identified.
-5-
. , 6.
Safety Related Piping - Observation of Work and Work Activities The inspector observed the installed piping run of the Residual Heat Removal System butween Heat Exchanger No. E1101-B001A and valve No. V8-2139 on drawing No. 6M721-3158-1.
It was determined that the pipe was installed in accordance with the drawing.
No items of noncompliance or deviations were identified.
7.
Safety Related Piping - Observation of Welding Activities The inspector observed welding of Emergency Equipment Cooling Water System weld No. P44-3368-2W01 and Residual Heat Removal System teeld No. E11-3151-10WF2.
It was determined that (a) work was conducted in accordance with the traveler; (b) proper welding materials were used; (c) welding procedure requirements were met; (d) work area was free of weld rod-sutbs; and (c) physical appearance was acceptable.
No items of noncompliance or deviations were identified.
8.
Safety Related Piping - Visual Examination of Welds a.
Visual Examination The inspector visually examined the following completed welds: (1) High Pressure Core Injection System welds No. E41-3163-01W8 and No. E41-3163-7WO.
(2) Emergenev Water Cooling System weld No. P44-3368-0W7.
(3) Residual Heat Removal System welds No. E11-3158-9WF1, No.
E11-3158-9WF2, No. E11-3158-9WF3, No. E11-3158-0W4, No.
E11-3158-3W0, No. E11-3158-2W3 and No. E11-3158-4AWF1.
It was determined that (1) weld surface finish and appearance were acceptable and there was not evidence of wall thinning due to grinding; (2) are strikes and weld spatter were not evident; and (3) the cover pass of weld No. E11-3158-0W4 appears to have been welded by Gas Tungsten Arc Welding (CTAW) instead of Shield Metal Arc Weld! ' (CMAW).
Upon questioning the licensee and reviewing of ret the inspector estab-lished that the entire weld was wel , oy CTAW instead of the conbination of GTAW and SMAW as required by Welding Procedure. The inspector also learned that W&B has identified this veld condition among other welds and a DDR has been initiated. Furthermore, Daniel International Corporation has also identified a similar situation during their audit. The-6-
t inspector stated this w4tter is considered unresolved pending a review of the resolution during a subsequent inspection.
(341/79-08-03) b.
Review of Records The inspector reviewed weld data sheets for the following welds: (1) Residual Heat Removal System welds No. Ell-3158-0W4, No.
Ell-3158-9RF2 and No. Ell-3158-4AWFl.
(2) Emergency Equipment Cooling Water System weld No.
P44-3368-0W7.
(3) High Pressure Core Injection System weld No. E41-3163-01W8.
It was determined that (a) specified inspections were completed; (b) records are clear and legible; (c) final QA review has not been performed; and (d) weld No. Ell-3158-0W4 was a nonconforming item as described in Paragraph 8.a.
No items of noncompliance or deviations were identified.
9.
Safety Related Piping - Weld Heat Treatment a.
Review of Procedure The inspector reviewed W&B Procedure No. WB-C-ll8, Rev. 2, " Methods of Control and Monitoring of Preheat and Interpass Temperatures." It was determined the procedure is acceptable.
b.
Observation of Work While observing velding activities for items stated in Paragraph 7 of this report, the inspector deterrined that preheat met the welding procedure requirements.
No items of noncompliance or deviations were identified.
10.
Safety Related Piping - Observation of NDE Activities T.m inspector observed liquid penetrant examination of High Pressure Core Injection System welds No. E41-3163-11WS1 and Wo.
E41-3163-IS2.
It was determined that (a) surface condition was acceptable; (b) procedure requirements were met; and (c) personnel were properly qualified.
No items of noncompliance or deviations were identified.
-7-
. t Unresolved Items Unresolved items are matters about which more information is required in order to ascertain whether they are acceptable items, items of noncompliance or deviations. Unresolved items disclosed during the inspection are discussed in Paragraphs 4.b and 8.a.
Exit Interivew The inspector met with the licensee representatives (denoted in the Persons Contacted paragraph) on March 30, 1979.
The inspector summarized the scope and findings of the inspection.
The licensee acknowledged the information.
-8- }}