What was found
REAR AFT BULKHEAD WAS FOUND TO BE CRACKED DURING AN ANNUAL INSPECTION. THE CRACK IS LOCATED AT THE UPPER RT PORTION OF THE BULKHEAD. IT IS VISIBLE ON THE FORWARD SIDE OF THE BULKHEAD AND ALSO VISIBLE INSIDE THE BOLT HOLE WHERE THE VERTICAL STAB ATTACHES. THE CRACK APPEARS TO TRAVEL FROM THE BOLT HOLE ACROSS THE STRUCTURE TO THE EDGE. IT IS UNCLEAR AS TO WHAT CAUSED THE STRUCTURE TO CRACK, THE SURROUNDING STRUCTURE IS NOT DAMAGED AND NO OTHER VISUAL DAMAGE WAS NOTED. THE BULKHEAD WILL NEED TO BE REPLACED WITH A NEW PART.