NOT MY WORDS
United flight UA1175 landed in Honolulu safely this afternoon after losing the cowling on the front of its right engine during the flight from San Francisco.
UA1175 was operated by N773UA, a 777-200 operated by 2 PW4077 engines. The aircraft was first delivered to United in 1995.
Flight data and playback: https://www.flightradar24.com/data/flights/ua1175#106b682f
Video taken by a passenger of the aircraft in flight after the cowling separated from the engine: https://twitter.com/erikhaddad/status/963545018890821632
I read this and immediately thought of the Air France A388 incident in which one of their engine cowling fell off. What causes these to just fall off?