What was found
ON LANDING, NR 1 ENGINE WOULD NOT GO FROM IDLE OFF. SHUT DOWN WAS DONE BY USING FUEL LEVER AND ROTOR BRAKE. WHEN BRAKE WAS APPLIED, RPM WAS TOO HIGH AND R/B CAUGHT FIRE. FIRE WAS PUT OUT AND ENGINE SHUT DOWN. FOUND THROTTLE CABLE BROKEN INTERNALLY. REMOVED R/B SYSTEM AND CABLE. INSPECTED PLENUM AREA PER M & O AND SKY TECH REP. NO DAMAGE FOUND. INSTALLED NEW CABLE AND R/B SYSTEM. OPS CHECK OK. SUBMITTER RECOMMENDED BETTER COCKPIT PROCEDURES DURING PROBLEMS LIKE THIS.