NEW DELHI: Over 1,700 loco pilots, mostly pilots of goods trains, have failed the breathalyser tests for alcohol over the last five years, railways minister Ashwini Vaishnaw told the Rajya Sabha on Friday. Ashwini Vaishnaw said 1,761 loco pilots - 674 passenger loco pilots and 1,087 goods loco pilots - have failed the test. “Loco Pilots who have failed the …