What was found
REAR FUSELAGE EXTERNAL SKIN HAS POSSIBLE CRACK AROUND RIVET AT FR 78 BETWEEN STGR 4L / 5L. PERFORMED CUTOUT OF CRACK AROUND RIVET ON REAR FUS EXTERNAL SKIN AT FR 78 AND BTW STR 4L-5L AND PERFORMED PERMANENT REPAIR OF SKIN AT FR 78 AND BTW STR 4L-5L IAW PIEDMONT EO1-53-26-0137 AND EMB 145 SRM 53-32-01, ITEM 9, STEP H 1-7, FIG 213.