What was found
CORROSION LOWER SILL LOCATED FR66 AND STR 23L IN PASSENGER CABIN.SEE AEROMAN NON ROUTINE 2022-308750 PERFORMED PERMANENT REPAIR ON LOWER SILL LOC. AT FR.66 AND STR. AREA IS: 0.091", NOMINAL THICKNESS ON AREA IS: 0.150" PERFORMED IAW NTM NTM 51-10-02 AND NTM 51-10-08, PERFORMED ROTO TEST 23L IN PASSENGER CABIN IAW EA #53-0329-22 PART #1 THRU PART #8, VISUAL INSPECTION ON THE AFFECTED AREA AND NIL ADDITIONAL DAMAGE INSPECTION IN OPEN FASTENER HOLES WITHIN REPAIR AREA ASPER NTM COVER REVISION #0 AND EC/RA #5315-01178, THIS REPAIR IS CAT A, IAW NTM 51-90-00 AND EA #53-0329-22, STEP 3, PERFORMED HFEC 51-10-01, NO CRACK INDICATION FOUND. MEASURES OF THE REWORK ARE: L=2.445" W=1.205" MRT ON REWORKED INSPECTION ON REWORKED AREA NO CORROSION AND NO CRACK INDICATION SEE AEROMAN NON ROUTINE 2022-308750 FOR CORRECTIVE ACTION