As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
**WHILE IN HEAVY CHECK** MAINTENANCE FOUND LEVEL 2 CORROSION AT LT DOUBLER FR 19-20. REMOVED AND REPLACED LT DOUBLER FR 19-20. SRM 51-40-08. RESTORED SURFACE PROTECTION TO LT DOUBLER FR 19-20 REF. SRM 51-23-06.AIRCRAFT REMAINS IN HEAVY CHECK FOR DURATION OF THE CHECK.