What was found
PDIS 915 76-15 1679 17OCT19 CDG OPEN U LOGPAGES:2941127 AT THE GATE , LEFT ENGINE WOULD NOT SHUTDOWN USING THE FUEL CONTROL SWITCH. THE SPAR VALVE WAS MOVING BUT THE ENG VALVE LGT WOULD ILLUMINATE WHEN THE F/C SW WAS PLACED OFF. FINALLY PULLED FIRE HANDLE. CHECKED LH ENG FIRE SW S37 AND FOUND 139 OHMS BETWEEN PIN 7 AND 19. REMOVED AND REPLACED LEFT ENGINE FIRE HANDLE AS PER AMM 26-21-02-4.PERFORMED LEFT ENGINE FIRE SWITCH INSPECTION CHECK IAW AMM 26-21-03-6, ALL CHECK SATISFACTORY.