What was found
UPON A SCHEDULED INSPECTION AT AERO CORP IN LAKE CITY, FL, THE LEFT WING RIB 629 LOWER CHORD HAS A CRACK AT THE THIRD STRINGER FROM THE END, CRACK LENGTH WAS 1 INCH. STOP DRILLED CRACK. FABRICATED DOUBLER AND INSTALLED IAW B727 SRM 57-10-2, 51-20-4. (M)