What was found
OPEN HOLE ETHF INSPECTION ON RIGHT VERTICAL STAB FRONT SPAR FWD. FLANGE SHOWS CRACK INDICATIONS AT FASTENER HOLES #1, 3, 4 BELOW SPLICE AND 5, 6 AND 13, ABOVE SPLICE. REFERENCE 5530-01045-0602. CLEANED HOLES WITH BRASS BRUSH. (668138). PERFORMED OPEN HOLE ETHF INSP. OF RT. VERT. STAB FRONT SPAR FWD FLANGE AT FASTENER HOLES MARKED #1, 3, 4 BELOW SPLICE AND 5, 6 AND 13 ABOVE SPLICE PER OPN 5530-01045-0602. NO INDICATIONS. AD RELATED