What was found
AIRBORNE/PEMCO NON-ROUTINE 2387N3021 DISCREPANCY: DURING "OK TO INSTALL" L/H AILERON FOUND CORROSION ON WING REAR SPAR UPPER CAP AT W.S.906.2 FWD OF AILERON I/B MOST HINGE FITTING. CORRECTIVE ACTION: REMOVED CORROSION ON L/H AILERON ON WING REAR UPPER SPAR CAP AT W.S. 906.2 FWD OF AILERON I/B MOST HINGE FITTING IAW SRM 57-51-02. MATERIAL 0.120, MATERIAL LOSS 0.050, REMAINING MATERIAL THICKNESS 0.070. FOUND TO BE OUT-OF-LIMITS IAW B767-200 SRM 57-51-02. REPAIRED IAW E.O.#19560.