ML19318B202
| ML19318B202 | |
| Person / Time | |
|---|---|
| Issue date: | 03/31/1980 |
| From: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| To: | |
| Shared Package | |
| ML19318B191 | List: |
| References | |
| REF-QA-99900047 99900047-80-1, NUDOCS 8006250123 | |
| Download: ML19318B202 (3) | |
Text
.
~
Westinghouse Nuclear Components Division, Tampa Plant 99900047/80-01 NOTICE Of DEVlATION Based on the results of an NRC inspectico conducted on March 10-14, 1980, it appears that certain of your activities were not conducced in accordance with NRC requirements as indicated below:
Criterion V of Appendix B to 10 CFR 50 states:
" Activities affecting quality shall be prescribed by documented instructions, procedures, or drawings, of a type appropriate to the circumstances and shall be accomplished in accordance with these instructions, procedures, or drawings.
Instructions, procedures, or drawings shall include appropriate quantitative or qualitative acceptance criteria for determining that important activities have been satisfactorily accomplished." Deviations from these requirements are as follows:
A.
Paragraph NCA-4134.18 in Section III of the ASME Code states in part with respect to audits, ".... Follow-up action, including re-audit of deficient areas, shall be taken where indicated..." Paragraph 14.5.6 in Section 14 of the QA Program Manual states in part, On major items, a re-audit will be scheduled within a reasonable time to confirm that follow-up action has been taken.
Contrary to the above, follow-up action was not taken with respect to 4
Item 44 from the April 1979 audit of Manufacturing, in that the Item was closed out by Quality Assurance without re-audit or verification that agreed steps to prevent recurrence had been accomplished as committed.
(See Details I, B.3.a.).
B.
Paragraph NB-4624, sub paragraph 3 in Section III of the ASME Code states in part,
.. Local postweld heat treatment shall consist of heating a circumferential band around the component or item at temperature within the ranges specified in this Subarticle. The minimum width of the con-trolled band at each side of the weld, on the face of the greatest weld width, shall be the thickness of the veld or 2 inches, whichever is less.
The' temperature of the component or item from the edge of the controlled band outward shall be gradually diminished so as to avoid harmful thermal gradients.
t Contrary to the above:
1.
Process Specification PS 83032 GY, Revision 4, which was provided to a heat treatment service vendor for performance of a second local postweld heat treatment of the Z Seam (Channel Head to Tube Sheet) in steam generator Shop Order 2211, did not either address permissible gradients, or provide any criteria that would assure a gradually diminishing temperature ontwards from the controlled band.
80 06250 l Q,,,]
2 2.
Monitoring of actual developed gradients was neither required of nor performed by the vendor during the heat treatment cycle.
(See Details I, C.3.a.).
C.
Paragraph 12.3.9 in Section 12 of the QA Program Manual states in part, "After disposition has been satisfactorily completed, the area Quality Control Technician and the area Manufacturing Supervisor responsible for the repairs sign the Material Review Request Card and forward it with the completed MRR to Records.
Contrary to the above, the signed Material Review Request Card and completed MRR No. 25337 were forwarded to Records, although the dis-position had not been satisfactorily completed with respect to Heater Well No. 97 in Pressurizer Shop Order THPT 2161, Assigned Item 02; i.e.
the heater well was accepted with a sleeve wall thickness of 0.130 inches after rolling into the pressurizer lower head, nen the MRR required a wall thickness of 0.136 - 0.143 inches to be maintained.
D.
Paragraph 12.3.7 in Section 12 of the QA Program Manual states in part, "If repair disposition is determined, Industrial Engineering prepares an MRRT which is reviewed for completeness by Quality Assurance.
The MRRT delineates the proper manufacturing and inspection operations necessary for the repair, and references the P.S.I. or M.D.I. applicable for the process.
Contrary to the above, the proper inspection operations necessary for repair welding of shielded metal are cladding on manway bores in the steam generator channel head for Shop Order PCGT 2384, Assigned Item BB, were not delineated on MRRT No. 033494.
(See Details I, D.3.a.(2)).
E.
Paragraph QW-201.1 in Section IX of the ASME Code states in part,
... Changes may be made in the nonessential variables to suit production requirements without requalification of the procedure, provided such changes are documented with respect to both essential and nonessential variables of the specific welding process or processes, either in an amendment to the original WPS, or a new WPS."
Contrary to the above, the wording of gas tungsten are WPS, PS 82127 ML, Revision 7, permitted changes in amperage and filler wire size nonessential variables for the process, without amendment to the WPS or a new WPS being required.
(See Details I, E.3.a.).
F.
QA Program Manual Section 9.0, paragraph 9.3.10 states in part, Weld Materials are kept segregated by test number.
3 The Westinghouse Tampa Plant practice for maintaining segregation of weld materials while they are in holding ovens, is to place a map on the oven door which delineates the type electrode, size, heat / batch number, and test number.
Contrary to the above, welding materials were not kept segregated by test number, in that holding oven 63417, which was identified as containing only 5/32 inch, type 7018 electrodes, test number 08308, batch number 9163, also contained about twenty-five (25) 3/16 inch, type 7018 electrodes, test number 08297, batch vimber 9150.
_. _