What was found
NOSE LANDING GEAR WOULD NOT EXTEND NORMALLY ON APPROACH INTO PWM. FLIGHT WAS DIVERTED TO BOS AND LANDED WITHOUT INCIDENT. EMERGENCY GEAR EXTENSION PROCEDURES WERE UTILIZED FOR LANDING. MAINTENANCE GREASED NOSE GEAR, DRAG LINK, RETRACT CYLINDER, AND BUNGEE. OPERATIONAL CHECK NORMAL ON CYCLE. AIRCRAFT RETURNED TO SERVICE.