What was found
MCN - C4 - MAJOR REPAIR - LEVEL 2 EXFOLIATION CORROSION ON HAT CHANNEL AT L-4 DOOR OPENING BS 1672 BETWEEN LBL 60 TO LBL 65. REPLACED HAT CHANNEL AT L-4 DOOR OPENING BS 1672 BETWEEN LBL 60 TO LBL 65 IAW B757 SRM 51-10-02.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
MCN - C4 - MAJOR REPAIR - LEVEL 2 EXFOLIATION CORROSION ON HAT CHANNEL AT L-4 DOOR OPENING BS 1672 BETWEEN LBL 60 TO LBL 65. REPLACED HAT CHANNEL AT L-4 DOOR OPENING BS 1672 BETWEEN LBL 60 TO LBL 65 IAW B757 SRM 51-10-02.