What was found
RT 870 INTERGRAL RIB FWD CRACKED FROM O/B HOLE TO EDGE. THE 2ND CRACK O/B OF O/B HOLE CRACKED FROM EDGE THROUGH RADIUS INTO AFT LWR HOLE OF O/B FLANGE. INSTALLED DOUBLER PER EZ 7-5310-28831.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
RT 870 INTERGRAL RIB FWD CRACKED FROM O/B HOLE TO EDGE. THE 2ND CRACK O/B OF O/B HOLE CRACKED FROM EDGE THROUGH RADIUS INTO AFT LWR HOLE OF O/B FLANGE. INSTALLED DOUBLER PER EZ 7-5310-28831.