I AM PROFESSIONAL FIRE INVESTIGATOR ASSIGNED TO INVESTIGATING THE ORIGIN AND CAUSE OF A FIRE INVOLVING THE SUBJECT VEHICLE IDENTIFIED. THE EVIDENCE REVEALED TO DATE SUPPORTS THAT THE CAUSE OF THE FIRE WAS THE RESULT OF THE FAILURE IDENTIFIED IN NHTSA CAMPAIGN NUMBER: 13V557000. MY CONCERN INVOLVES THE CONSEQUENCE SECTION LISTED IN THE CAMPAIGN. SPECIFICALLY THE CONSEQUENCES SECTION DOES NOT INCLUDE THAT IF LEFT UNADDRESSED, A FAILURE OF THE VALVE SPRINGS MAY RESULT IN THE FIRE EVENT. A COMPLETE ORIGIN AND CAUSE WRITTEN REPORT HAS BEEN GENERATED OF THE EFFORTS CONDUCTED AND ANALYSIS TO DATE. I'VE BEEN PROVIDED PERMISSION BY OUR CLIENT SHARE ALL INFORMATION GENERATED TO DATE WITH NHTSA REPRESENTATIVES. HOWEVER, BECAUSE IT IS CONSIDERED A PRIVATE INVESTIGATION I'M CONCERNED ABOUT ATTACHING THE CONFIDENTIAL REPORT THROUGH THIS NHTSA WEBSITE. THE DOCUMENTATION AVAILABLE ALSO INCLUDES 242 DIGITAL IMAGES CAPTURED WHICH INCLUDE THE VEHICLE ON FIRE, EXAMINATION OF THE SUBJECT VEHICLE AT A STORAGE FACILITY, DOCUMENTATION OF THE LOSS LOCATION AND THE EFFORTS CONDUCTED DURING A NONDESTRUCTIVE EXAMINATION. AT THIS POINT OF THE INVESTIGATION WE ARE READY TO DO THE TEARDOWN (DESTRUCTIVE EFFORTS) AND EXAMINATION OF THE CYLINDER HEAD, VALVES AND ASSOCIATED COMPONENTS. MY GOAL IN COMPLETING THIS NHTSA DOCUMENT IS TO DETERMINE IF A REPRESENTATIVE OF THE NHTSA LIKE TO ATTEND OR PROVIDE GUIDANCE DURING THE UPCOMING EXAMINATION. PLEASE FEEL FREE TO CONTACT ME DIRECTLY AT [XXX].