What was found
WHILE WORKING CARD NR 7-3520-7-3313A PT 2, COCKPIT 00017. REMOVED STR 20R FOR OXYGEN MOD AND FOUND CORROSION ON SKIN AT BS 420 UNDER STR 20R, OUT OF LIMITS PER FEDEX SRM 53-30-1. REPAIRED DAMAGED SKIN PER FEDEX SRM 53-10-3 FIG 4.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
WHILE WORKING CARD NR 7-3520-7-3313A PT 2, COCKPIT 00017. REMOVED STR 20R FOR OXYGEN MOD AND FOUND CORROSION ON SKIN AT BS 420 UNDER STR 20R, OUT OF LIMITS PER FEDEX SRM 53-30-1. REPAIRED DAMAGED SKIN PER FEDEX SRM 53-10-3 FIG 4.