THE OFFICE OF DEFECT INVESTIGATION (ODI) OPENED PRELIMINARY EVALUATION, PE05-054, BASED ON 131 VEHICLE OWNER QUESTIONNAIRES RELATED TO ALLEGED REAR COIL SPRING FRACTURES.SINCE OPENING THE INVESTIGATION THERE HAVE BEEN AN ADDITIONAL SIXTY-THREE (63) COMPLAINTS ALLEGING REAR COIL SPRING FRACTURE.AN ANALYSIS OF THE VEHICLE OWNER QUESTIONNAIRES (VOQS) SUBMITTED TO ODI REVEALS THAT 42% OF THE COMPLAINANTS ALLEGE THAT THE ADJACENT TIRE WAS PUNCTURED AS RESULT OF A REAR COIL SPRING FRACTURE. ADDITIONALLY, AN ANALYSIS OF THE COMPLAINT DATA RECEIVED BY ODI FROM FORD REVEALS THE FOLLOWING: THERE WERE A TOTAL OF 553 UNIQUE VEHICLE COMPLAINTS OF COIL SPRING FRACTURE. 30% OF THE COMPLAINTS ALLEGE THAT THE REAR COIL SPRING FRACTURE RESULTED IN THE ADJACENT TIRE BEING PUNCTURED. AN ENGINEERING ANALYSIS (EA06-002) IS BEING OPENED TO FURTHER EXAMINE THE POTENTIAL SAFETY IMPLICATIONS OF THE REAR COIL SPRING FRACTURES AS RELATED TO TIRE PUNCTURES.