What was found
ON OVERHEAD PANEL, THE L PITOT LIGHT ILLUMINATED INFLIGHT WITH AN ELECTRICAL BURNING SMELL ASSOCIATED. RAN THE QRH AND SMELL PERSISTED. DIVERTED TO FARGO AND EMERGENCY DECLARED. DISCONNECTED BATTS AND CIRCUIT BREAKER J27 PULLED. R&R THE LT CURRENT SENSOR PN OFF QR50V SN OFF C1-94907. SN ON QR50V, SN ON CP-85534 IAW WITH THE SAAB 340 AMM 30-30-00-05. DURING OPS CHECKS NO SMOKE OR BURNING SMELL NOTED. RETURNED ACFT TO SERVICE FOR WORK PERFORMED. CONNECTED BOTH BATTERIES.