As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT WING AILERON BALANCE BAY #4; WEIGHTS HAVE CORROSION. / REMOVED AND REPLACED LEFT WING AILERON BALANCE #4 WEIGHTS IAW SOPM 20-50-01; SRM 51-40-02-0G-0; AMM 20-50-11-910-801 TABLE 215 NO CHANGE IN WEIGHT TW 20073 DUE 06/03/20 A TAG: UP1649 UP1669