What was found
WHILE IN HEAVY CHECK - STR 21L HAS EVIDENCE OF CORROSION FROM FR 88 TO 91. REPAIRED STR 21L FROM FR 88 TO 91 BY INSTALLING SPLICE AND REPAIR FILLER REF EMB SRM 51-40-08 AND ETD2020-170-007474
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
WHILE IN HEAVY CHECK - STR 21L HAS EVIDENCE OF CORROSION FROM FR 88 TO 91. REPAIRED STR 21L FROM FR 88 TO 91 BY INSTALLING SPLICE AND REPAIR FILLER REF EMB SRM 51-40-08 AND ETD2020-170-007474