Inspection, Repair and Manufacturing SEI is not bragging to know or to do everything, but in what this specific Flameholder repair requires we did our homework. Seven years into repair, with more than 2,500 units without any rejection. Attention to every detail and using the TO as guideline is rewarding everybody with excellent results. Bases, which chose to send all their Flameholders to us from the first repair cycle, benefit in the long run. Not only that in the first repair cycle (Flameholder only), we mach the OEM warranty period for a fraction of the cost, but also we manage the following repairs in much more consistent way. The final result is longer flying time with less maintenance and a very substantial savings for the Base.    Solution Heat Treatment of Flameholder is performed to improve ductility and weldability prior to repair. Long time exposure to high temperature engine operating environment, causes precipitation of carbides into the grain boundaries. Carbides, particularly chromium carbides, are thus precipitated into the grain boundaries of parts made of Hastelloy X material and subjected for long periods to temperatures of 1200 to 1700 F. The solution treatment dissolves these carbides and puts them back into metallic solution. This beneficial process produces an improved microstructure, which welds easier and prevents future cracking.     In accordance with USAF TO specifying the work procedure in repairing this particular part is stated that: omission of Solution and Stress Relieve steps will shorten expected part life. We offer the Heat Treating steps in every part, which we repair! Repair without Heat Treating??? Above is just a small example on parts entering our shop and after we repair them.We are spending a great deal of time blending welds to avoid flow disturbance and stress caused by big variations in material thickness during heating and cooling cycles while in use.