As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TUL - FOUND AREA OF CORROSION ON LOWER WING SKIN UNDER AREA OF LEFT PRIMARY HEAT EXCHANGER. REMOVED CORROSION, TREATED AND INSTALLED REPAIR DOUBLER PER ESO NR 11697 DATED 11-17-98 AND REF BOEING MESSAGE AAL-TUL-98 1122RR DATED 17 NOV 98. (M)