What was found
DURING A SCHEDULED INSPECTION AT AERO CORP, A 1 INCH CRACK WAS FOUND IN THE AFT CARGO PIT FRAME AT STA 897 BETWEEN S28L AND S27L. REMOVED OLD REPAIR CRACKED DOUBLER IAW DC9 SRM 51-30-5. REMOVED CORROSION ON ANGLE FRAME, MATERIAL LOSS LESS THAN .002 INCH IAW DC9 SRM 51-10-3. TREATED AND PRIMED IAW DC9 SRM 51-10-3. FABBED DOUBLER 13.5 INCHES BY 2.750 INCHES OUT OF 7075-T6 .063 INCH. TRIMMED, PRIMED, COUNTERSUNK, AND DEBURRED IAW DC9 SRM 53-01 PAGE 8 FIG 2. TREATED AND PRIMED IAW DC9 SRM 51-10-3. INSTALLED REPAIRS IAW DC9 SRM 51-30-5.