What was found
DURING HEAVY MAINTENANCE VISIT, FOUND BS 578, LT FRAME INBD FLANGE CRACKED BETWEEN S-16L AND S-17L. REPAIRED PER ECO 1567 DEV. HR 1. AIRCRAFT RETURNED TO SERVICE. (X)
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING HEAVY MAINTENANCE VISIT, FOUND BS 578, LT FRAME INBD FLANGE CRACKED BETWEEN S-16L AND S-17L. REPAIRED PER ECO 1567 DEV. HR 1. AIRCRAFT RETURNED TO SERVICE. (X)