What was found
AIRCRAFT IN BASE MAINTENANCE: CRACK INDICATION ON POSITION 4 OPEN HOLE ZONE 1, CENTER BOX FRONT SPAR VERTICAL STR FR 36. CRACK DEPTH IS: 0.157 INCH. MAINTENANCE PERFORMED PERMANENT REPAIR LOC POSITION 4 (-Y254), CENTER BOX FRONT SPAR VERTICAL STR FR 36 IAW EA 367366 AND REPAIR DRAWING R57112154.