Indigo planes come too close for comfort

More than 300 passengers on board two planes of the private operator Indigo had a close shave over Bengaluru airspace on July 10, triggering anti-collision alarms. The Director General of Civil Aviation (DGCA) has ordered an inquiry.

In a statement on Thursday, Indigo said its TCAS (traffic collision avoidance system) resolution advisory system was triggered when aircraft operating on the Coimbatore-Hyderabad and Bengaluru-Kochi routes came close to each other. With Bengaluru’s airspace divided between the Kempegowda International Airport, the Yelahanka Air Force base and HAL airport, sources said the incident happened over HAL’s airspace. The airplanes came within 4 nautical miles (around 7.4 km) of each other, with a vertical separation of just 200 feet, they said.

With Bengaluru’s airspace divided between the Kempegowda International Airport, Yelahanka Air Force base and HAL airport, sources said the incident happened over HAL’s airspace.

The TCAS systems, which are mandatory for major civil airplanes carrying more than 19 passengers, were triggered, when the planes were within 4 NM of each other.

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