As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAINTENANCE WAS INVESTIGATING THE STABILIZER WORKING LOOSE IN LESS THAN 10 HOURS SINCE LAST MAKING ADJUSTMENTS. THERE WAS A CONCERN ABOUT A SNAPPING NOISE DURING VERTICAL SHAKING OF THE AIRFOIL AT THE OB POSITIONS. THIS LED MAINTENANCE TO REMOVE THE ASSEMBLY FOR INSPECTION; WHICH RESULTED IN FINDING A 9.5 INCH CRACK IN THE FORWARD SPAR KEVLAR WRAP. (K)