What was found
CORROSION ON BEAR STRAP STA 1620, STR 29L TO STR 29R. MAJOR REPAIR ACCOMPLISHED: INSTALLED DOUBLER PER PEMCO EA PD57-53-143 AND EVA 80942 ON PEMCO NR 2673N00306. THIS REPAIR MUST RECEIVE A NEW FAA FORM 8100-9 SHOWING COMPLIANCE TO 14 CFR 25.571 AND 26.43(D) AND DTI INCORPO RATED IN THE ACFT MAINT PROGRAM WITHIN 24 MO. FROM 06-16-11 FOR THIS REPAIR APPROVAL TO REMAIN VALID AFTER 06-16-13. IF A NEW 8100-9 APPROVAL IS NOT OBTAINED ON OR BEFORE 06-16-11, THE ACFT BECOMES UNAIRWORTHY. RECEIPT IS TRACKED BY DTA 11-098.