Banjo Fitting
When accomplishing Service Bulletin 1124-55-148 R1, be very careful when drilling out the fasteners along the Station 521.750 frame, also known as the banjo fitting. We have seen several instances of technicians allowing the drill bit to go in too far, damaging the frame face. Also, when replacing the fasteners, use Hi-Loks instead of MS20470e6 series rivets, which are really hard to buck in such a confined area without damaging surrounding structure with the bucking bar.
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