What was found
YYC - PILOT REPORTS NR 1 DME DISPLAY ON CAPTAINS HSI FAILED. NR 1 DME INFORMATION ON FIRST OFFICERS DME REPEATER REMAINED NORMAL. NR 1 DME XCVR CIRCUIT BREAKER POPED. ACRID SMELL NOTED IN COCKPIT. BOTH DME'S FAILED. MAINTENANCE CAPPED AND STOWED CANNON PLUGS FOR THE NR 1 HSI. AIRCRAFT FERRIED TO SEA. SEA MAINTENANCE REPLACED THE NR 1 HSI, UNABLE TO COMPLETE OPERATIONAL TESTS DUE TO SEA-TAC DME INOPERATIVE. AIRCRAFT REMAINS CAT I.