S9074-AQ-GIB-010/248 Rev 1
D-1.4.4 Welding Procedure Changes Requiring Re-Qualification per Appendix D. For welding procedures qualified in accordance with this appendix, the following changes in essential elements from those used for qualification welding shall require re-qualification in accordance with this appendix; for other changes, requalification shall be per 4-7 and 4-8, and requalification to this appendix is not required: a. A change in welding process, except that GMAW spray shall qualify other GMAW transfer modes. b. A change in base material type per 4-7.1.a, excluding subparagraphs.
c. An increase in maximum heat input. d. An increase in interpass temperature. e. A decrease in TCA distance of ½ inch or more. f. Elimination of artificial cooling. g. Addition of insulation.
D-2
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