What was found
PDX: LT UPPER WING FUEL TANK ACCESS HOLE REBATE T-FITTINGS (3) HAVE SCRATCHES ON UPPER SURFACE, TOOLING MARKS ON THE VERTICAL FLANGE AND CORROSION AROUND AND INSIDE ALL BOLT HOLES, STA YS157.82, YW117.50 AND YW79.79. MAINTENANCE REPAIRED IAW RD 8/4-57-523, RD 8/4-57-441, NDTM PART 6, 51-00-01, RD 8/4-57-665, HORIZON EA 5-57-486, NDTM PART 6, 51-00-05, AND RD 8/4-57-669.