What was found
FOUND RT AILERON SPAR AND RIB (INBOARD) CRACKED AT HINGE ATTACHMENT. THE RIB IS INSPECTABLE THROUGH THE AILERON SKIN CUT-OUT FOR THE TAB PUSH/PULL ROD. REPLACED SPAR ASSY, RIB, AND NEW STYLE BRACKET, PN 74461-03 (REF. SB 974).
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
FOUND RT AILERON SPAR AND RIB (INBOARD) CRACKED AT HINGE ATTACHMENT. THE RIB IS INSPECTABLE THROUGH THE AILERON SKIN CUT-OUT FOR THE TAB PUSH/PULL ROD. REPLACED SPAR ASSY, RIB, AND NEW STYLE BRACKET, PN 74461-03 (REF. SB 974).