What was found
AIRBORNE/PEMCO NON-ROUTINE 2867N279 DISCREPANCY: LT W/W INNER BULKHEAD WEB CORRODED AT PASS THRU BS 1175 LBL 0. CORRECTIVE ACTION: CLEANED AND EVALUATED LT WW INNER BULKHEAD WEB ORIGINAL MATERIAL .130", MATERIAL LOSS .040", MATERIAL REMAINING .090", FOUND TO BE OUT OF LIMITS. REPAIRED LT WW INNER BULKHEAD WEB AT STA 1175 LBL 0, IAW B757-200 SRM 53-40-14AD1 FIG 101 DETAIL VI AND PER E0 NR 20366-9 REV IR.