What was found
4TH BOLT HOLE BELOW STA ZFS=52.267 ON LT SIDE OF VERTICAL STAB FRONT SPAR CAP HAS CRACK INDICATION, REF AA5530-01048 & AD 2018 -10-08. C/W CRACK VERIFICATION, PER AMDS 5530-01048-02 STEP 10. CRACK DETERMINED IN SKIN (QC1432). STEPPED SKIN HOLE TO .277. C/W HFEC OF SKIN-NO CRACK (QC1432). DAMAGED HOLE REPAIRED, PER ERA/PRI 588955-14 REV 4. C/W ER/A 58895514-AD REV ORIG FINAL ER/A MATCHES PRI, ASSOCIATED AA 5530-01048 ADDED FOR AC 9545, ASSOCIATED ER/A 14-588955 ADDED FOR AC 9545.