As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING M-CHECK, FOUND FUSELAGE EXTERIOR AIR STAIR DOOR HAS CORROSION ALONG BOTTOM EDGE IN CHANNEL. REMOVED CORROSION FROM DOOR EDGE IN CHANNEL. FOUND TO BE OUT LIMIT IAW SRM 53-01, FIG 1 REMOVED SKIN FROM DOOR EDGE. RECEIVED NEW PN 5915064-501, INSTALLED IAW SRM 51-30-2 & 51-10-4.