Cowl Lip Skins, performed=NDT & re-applied Zzilon3 IAW Rolls-Royce Technical Variance TV 11807R, R=IIs-Royce Service Bulletin BR700- 7.710A1.10, and FAA A2.20, 04.11 Gulfstrea= (GAC) NTO (No Technical Objection) No.:116. The NDT report for both E=gines revealed that the remaining material thickness was abo