A mid-air collision above Southern Kenya was narrowly avoided on 29 August thanks to a TCAS alert and the awareness of the pilots.
An Ethiopian Airlines Boeing 737 (ET-ASJ) and a Neos Boeing 767-300 (I-NDOF) were both flying at an altitude of 37,000 feet when the incident occurred.
The 737 flight ET858 flying between Johannesburg and Addis Ababa and the 767 was carrying passengers from Verona to Zanzibar on flight NOS252.
With less than a minute before the places could have collided in mid-air, the Ethiopian Boeing 737 climbed to 38,000 feet descending again to its cruising altitude after which both flights continued to their destinations without further incident.
Less than 1 min before both flightpaths converged, the Ethiopian 737 climbed to 38,000 ft. and averted a potential conflict. ET858 resumed flight level 370 (37,000 ft) about a minute later. Both flights continued to their destinations without incident. https://t.co/XMghSj24bW
— JACDEC (@JacdecNew) September 5, 2018
TCAS is a traffic collision avoidance system designed to reduce the incidence of mid-air collisions between aircraft. It monitors the airspace around an aircraft for other aircraft equipped with a corresponding active transponder, independent of air traffic control, and warns pilots of the presence of other transponder-equipped aircraft which may present a threat of mid-air collision (MAC).