ML20053C562
| ML20053C562 | |
| Person / Time | |
|---|---|
| Issue date: | 05/06/1982 |
| From: | Barnes I, Conway J, Roberds H NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| To: | |
| Shared Package | |
| ML20053C559 | List: |
| References | |
| REF-QA-99900019 NUDOCS 8206020319 | |
| Download: ML20053C562 (10) | |
Text
{{#Wiki_filter:~ ORGANIZATION: ITT GRINNELL INDUSTRIAL PIPING, INCORPORATED KERNERSVILLE, NORTH CAROLINA REPORT INSPECTION INSPECTION NO.- 99900019/82-01 DATgS) 3/16-18/82 ON-SITE HOURS: 52 CORRESPONDENCE ADDRESS: ITT Grinnell Industrial Piping, Incorporated ATTN: Mr. A. K. King President P. O. Box 566 Kernersville, NC 72284 ORGANIZATIONAL CONTACT: I. E. Johnson TELEPHONE NUMBER: (919) 996-6400 PRINCIPAL PRODUCT: Nuclear piping subassemblies. NUCLEAR INDUSTRY ACTIVITY: Not obtained during this inspection. l ASSIGNED INSPECTOR:
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r-(, 2_ H. W. Roberds, Reactive & Component Program Section Date (R&CCS) OTHER INSPECTOR (S): J. T. Conway, R& CPS APPROVED BY: r-6 -P2. I. Barnes, Chief, R& CPS Date 1 1 INSPECTION BASES AND SCOPE: A. BASES: 10 CFR Part 50, Appendix B. l B. SCOPE: This inspection was made as a result of: (1) the detection of l mechanical enhancement of the specified penetrameter 4-T hole images in Midland, Unit 1 piping weld radiographs; (2) the detection at Midland, Units 1 and 2, of cracks in Type 316 stainless steel piping subassembly welds; and (3) the identification that fittings in piping subassemblies furnished to Phipps Bend, Unit 1, and Hartsville, A and B, had been tested (cont. on next page) PLANT SITE APPLICABILITY: Penetrameter 4-T hole image enhancement - Docket Nos. 50-518/50-519/50-520/50-521 and 50-329. In:orrect Fitting NDE Method - Docket Nos. 50-518/50-519/50-520/50-521 and 50-553. Type 316 stainless steel weld cracks - Docket Nos. 50-329/50-330. DESIggEDORIGINO 8206020319 020514 PDR OA999 EMVITTGI l 99900019 PDR )
ORGANIZATION: ITT GRINNELL INDUSTRIAL PIPING, INCORPORATED KERNERSVILLE, NORTH CAROLINA REPORI 1ridetLiluN NO.: 99900019/82-01 RESULTS: PAGE 2 of 5 SCOPE: (Cont.) by the ultrasonic method and not by the required liquid penetrant or magnetic particle test method. A. VIOLATIONS: Nor.e B. NONCONFORMANCES: 1. Contrary to Criterion V of Appendix B to 10 CFR Part 50 and Section V, Article 2 of the ASME Code, radiography of pipe welds with wall thickness of less than inch was not performed with a technique of sufficient sensitivity to display the penetrameter image and the specified T hole for certain piping assemblies furnished to Midland, Unit 1, and Hartsville, Unit A and B. A review of radiographs at the Midland site and by NRC personnel at the ITT Grinnell, Kernersville plant, identified that certain radiographs had been mechanically altered to include an artificial representation of the specified 4-T hole of the penetrameter. 2. Contrary to Criterio1 V of Apppendix B to 10 CFR Part 50 and Section III of the ASME Codr., paragraph NA-4370, documentation was not made available to.he NRC inspector which would indicate corrective action requirements had been ext 9nded to a subcontractor, who had examined fittings by the ultrasonic method instead of the required liquid penetrant or magnetic particle method. C. UNRESOLVED ITEMS: None D. STATUS OF PREVIOUS INSPECTION FINDINGS: (0 pen) Deviation (Inspection Report 80-01): Copies of forms to be used in resolution of Design Specification conflicts were not being sent to the Director of Quality Assurance, as required by corrective action commitments. This subject was not addressed during the current inspection. J
ORGANIZATION: ITT GRINNELL INDUSTRIAL PIPING, INCORPORATED KERNERSVILLE, NORTH CAROLINA REPORT AN5FtLiiUN NO.: 99900019/82-01 RESULTS: PAGE 3 of 5 E. OTHER FINDINGS OR COMMENTS: 1. Nuclear Regulatory Commission, Region III, Referral of Penetrameter 4-T Hole Image Enhancement on Radiographs of Piping Welds Fabricated by ITT Grinnell a. This inspection was performed concurrently with an investigation by the Region IV Investigation and Enforcement Staff. Investi-gative findings are contained in Report No. 99900019/82-02. b. It was discovered that some radiographs of Class 2 pipe welds fabricated by ITT Grinnell (ITT-NC) for Midland, Unit 1, and Hartsville, Units A and B, had been mechanically altered to include an artificial representation of the specified 4-T hole of the penetrameter. The altered radiographs appear to be limited to pipe that is less than inch wall thickness and where the radiographic technique used required the penetrameter selection be based on the single wall thickness of the pipe. As the result of an investigation by the NRC Region IV office, it was established that radiographs had been altered, on occasion, for approximately 6 years. The method of alteration to the radiograph consisted of enhancing the image of the applicable penetrameter T-hole with a lead pencil, thereby, making unacceptable or questionable quality radiographs appear to be acceptable when examined under normal viewing conditions. 2. Nuclear Regulatory Commission, Region II Referral of Fittings (Incorrect NDE) on Spool Pieces Fabricated by ITT-NC - A detailed review of the documentation (e.g., purchase orders, manuals, pro-cedures, specifications, travelers, nonconformance reports, etc.) relating to the purchase, fabrication and examination of the forged l fittings (both 12" and 20" 0.D.) led to the following findings: l l a. Specific requirements (e.g., chemical, mechanical, NDE, etc.) were contained in TVA's purchase order to ITT for the spool pieces. Although ITT-NC referenced the code, three ITT specs, I and two ANSI standards in the purchase orders for the fittings to their supplier, ITT-Grinnell of Princeton, Kentucky (ITT-KT), l the specific test and inspection requirements were not addressed. l In addition, there was no evidence that ITT-NC procurement l documents required ITT-KT to provide an acceptable quality assurance program. (These apparent omissions have been corrected on current purchase orders), 1
ORGANIZATION: ITT GRINNELL INDUSTRIAL PIPING, INCORPORATED KERNERSVILLE, NORTH CAROLINA REPORT INSPECTION NO.: 99900019/82-01 RESULTS: PAGE 4 of 5 b. QC personnel at ITT-NC perform receipt inspection to verify that the items meet purchase order requirements. Negative findings result in the generation of a nonconformance report, and the suspect item goes to a segregated storage area to await dis-position. Contrary to the above, there was no evidence that a nonconforming report had been generated to reflect the fact that a number of fittings were not meeting purchase order requirements in the area of NDE. c. There was no evidence that an adequate indoctrination and training program was established for personnel performing receipt inspection to assure that they were adept in performing quality affecting activities. d. There was no evidence that nonconformance reports are periodically analyzed by the QA organization to show quality trends with the subsequent results reported to upper management for their review and assessment. e. ITT-NC and TVA haye reached a mutual agreement as to the disposition of the affected spool pieces containing the noncon-forming fittings. Some of the spool pieces have been received and inspected by ITT in accordance with the original inspection requirements. The remaining spool pieces in question will be sent to ITT for reinspection in the near future. 3. Midland Type 316 Stainless Steel Piping Weld Cracks - A detailed review of the documentation (e.g., reports, procedures, specifications, l travelers, qualification records, etc.) relating to the fabrication l and examination of the type 316 stainless steel pipe spool pieces (10" and 12" sizes) containing cracks in the girth welds led to the following findings: l a. After field surface grinding of welds in preparation for inservice l inspection, liquid penetrant examination revealed circumferential linear indications in 20 welds. The welds were performed by the same individual, and the cracks were confined to a single surface pass made by the submerged metal arc welding process. b. The Materials & Quality Services Dept. of Bechtel performed a metallurgical investigation (Ref. report BLN No. 1279-10) of one weld and determined that the linear cracks were due to: (1) high restraint in the weld pass; (2) low delta ferrite in weld metal; and (3) unfavorable shape of weld bead. l l
ORGANIZATION: ITT GRINNELL INDUSTRIAL PIPING, INCORPORATED KERNERSVILLE, NORTH CAROLINA REPORT INSPECTION NO.: 99900019/82-01 RESULTS: PAGE 5 of 5 c. ITT's Research Development and Engineering Division concluded (Ref. report no. 2998) that the ". . defect indications will not affect... the integrity levels applicable to the Class 1 and Class 2 piping systems." d. NRC inspection of this defect condition did not identify any nonconformance with the welding requirements of Section III of the ASME Code. No documented evidence was made available, however, which would indicate actions had been taken to precluce or minimize occurrence of this type of defect; e.g., changes in weld process controls to reduce base material dilution. This item will be further reviewed during a future inspection. e. All the welds containing linear liquid penetrant indications will be repaired in the field by Babcock & Wilcox using Bechtel procedures, standards, and specifications which were concurred in by ITT-NC. l 1 l
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