What was found
AFT PIT FRAME HAS CORROSION BS 1500, STR 30 & STR 29L. MAJOR REPAIR ACCOMPLISHED. RMV'D CORROSION ON FAIL SAFE & FOUND MATERIAL REMAINING AFTER BLEND-OUT TO BE .071\ FROM AN ORIGINAL .080\. RMV'D FAILSAFE CHORD, AND SPLICED IN REPAIR WITH 2 NEWLY FABRICATED INTERCOSTAL ATTACH ANGLES PER REO G14496, REV C ON NON ROUTINE 31113, 085625. PER EC-RA #5360-01176, THE BS 1500 LWR FAILSAFE CHORD REPAIR MUST RECEIVE A NEW FAA 8110- 3 SHOWING COMPLIANCE TO 14 CFR 25.571 AND THE DAMAGE TOLERANCE INFORMATION INCORPORATED IN THE AIRCRAFT MAINT PROGRAM WITHIN 12 MONTHS FROM 13JAN12. THIS AIRCRAFT WILL BECOME UN-AIRWORTHY UNLESS A NEW FAA 8110-3 IS OBTAINED ON OR BEFORE 13JAN13. DTA 12-005 CREATED TO TRACK THE RECEIPT OF A NEW 8110-3.