What was found
CORROSION, AFT CARGO DOOR CUTOUT SKIN UNDER SCUFF PLATE FR 63 TO FR66 LOWER SILL NR 2, 3, AND 8. C/W DELTA ER/A 634237-14 REV O, SECTION 1 COMPLETING TEMPORARY REPAIR. REPAIR REQUIRES INSPECTION EVERY 1000 FH FROM 13,074 TOTAL A/C FLT HOURS PER ERA # 634237-14 REV ORIGINAL. PERMANENT REPAIR REQUIRED WITHIN 10,000 FH FROM 13,074 TOTAL A/C FLT HRS AS OF 1 MAY 2026. REF ERA #634237-14 REV ORIGINAL. (LP# 1577718; AIRCRAFT WAS GROUNDED)