What was found
DURING HEAVY MAINTENANCE: PASSENGER CABIN, UPPER SURFACE FLOOR BEAM STRUCTURE, BTW FR 16 AND FR 18, 'Y' - 254, WITH CORROSION; PASSENGER CABIN, UPPER SURFACE FLOOR BEAM STRUCTURE, BTW FR 16 AND FR 18, 'Y' - 254. DAMAGE WAS REPAIRED I.A.W. SRM 53-11-14-300-004, REV 149, 01-MAY-2024. THIS REPAIR IS CATEGORY A. ALL WORK ACCOMPLISHED ON MEXICACNA WO 1282422, 131- 2003 NR 00584.