What was found
LANDING GEAR WOULD NOT COME DOWN, GOT INTRANSIT LIGHT BUT NO GEAR DOWN INDICATION. LANDING GEAR CONTROL BREAKER POPPED. PERFORMED EMERGENCY GEAR EXTENSION, GEAR CAME DOWN WITH 3 GREENS. UPON LANDING IN DTW, NO NOSE WHEEL STEERING. MAINTENANCE INSPECTED LANDING GEAR, FOUND CB F-7 POPPED. RESET CB, TAPED UP MAIN GEAR DOOR AND INSTALLED ALL THREE LANDING GEAR PINS, OPS CHECKING NOSE STEERING SYSTEM, OPERATES NORMALLY. MAINTENANCE REPLACED SWITCH 5GB. ALL NECESSARY OPS CHECK GOOD IAW SF340 AMM.