ADS-B data from online tracking website Flightradar24 are providing more indications about sudden attitude changes and a potential inflight break-up  of the Metrojet Airbus A321 that crashed Oct. 31 on the Sinai peninsula in Egypt. The data, provided to Aviation Week, appear normal until 6:13:14 a.m. The data then showed negative vertical speed when the altimeter indicates the aircraft was still climbing. That discrepancy widened for around two seconds until an even more ...


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