As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE A/C WAS IN FOR HEAVY CHECK FOUND LEVEL 2 CORROSION CONNECTORS FOR LEFT WING TIP AFT STROBE LIGHT AND POWER SUPPLY. MX REMOVED AND REPLACED HARNESS W515 (FWD STROBE) AND HARNESS W518 (MAIN STANDBY NAV AND STROBE AFT) IAW EMB SWPM 20-50-00. A/C REMAINS IN CMH FOR HEAVY CHECK COMPLETION. P/N 170-06474-401 AND 170-07697-401.