As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT IN BASE MAINTENANCE: EXTERIOR FUSELAGE SKIN AT LEFT AFT RAM AIR INLET MODULATION PANEL HAS CORROSION. REMOVED CORROSION EVALUATED REWORKED AREAS AT LEFT HAND EXTERIOR FUSELAGE LOCATED AT BS 500I TO 520 AND STR 22L TO 23L. PER B737-NG- SRM 51-10-02-0G, SRM-53-00-01-1A-1.