What was found
WHILE IN 'D' CHECK MAINTENANCE FOUND NR 4 SLAT RT (I/B) ACTUATOR RIB CRACKED BETWEEN FLANGES COMMON TO SPAR AND UPPER SKIN. INSTALLED REPAIR IAW EO 727-57-1077.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
WHILE IN 'D' CHECK MAINTENANCE FOUND NR 4 SLAT RT (I/B) ACTUATOR RIB CRACKED BETWEEN FLANGES COMMON TO SPAR AND UPPER SKIN. INSTALLED REPAIR IAW EO 727-57-1077.