What was found
CLT/GSP - FLT 9101 - THE LEFT ENGINE WAS SHUT DOWN IN-FLIGHT BY THE AIRCREW. THE LEFT ENGINE WAS HAVING SEVERE TORQUE FLUCTUATION BETWEEN ZERO PERCENT AND 70 PERCENT. THE AIRCRAFT WAS 12 MILES OUT, ON DESCENT TO GSP. IN-FLIGHT EMERGENCY DECLARED. EMERGENCY PROCEDURES USED. AIRCRAFT LANDED WITH NO OTHER PROBLEMS. MAINTENANCE FROM CLT, FOUND THE P-3 LINE LOOSE. RE-SECURED THE P-3 LINE AND REPLACED THE P-3 GASKET. (X)