B788, en-route, Chengde China, 2019

B788, en-route, Chengde China, 2019

Summary

On 15 August 2019, a Boeing 787 descending towards destination Beijing received ATC approval for convective weather avoidance but this was then modified with both a new track requirement and a request to descend which diminished its effectiveness. A very brief encounter with violent turbulence followed but as the seat belt signs had not been proactively switched on, the cabin was not secured and two passengers sustained serious injuries and two cabin crew sustained minor injuries. The Investigation noted that weather deviation requests could usefully be accompanied by an indication of how long they were required for.

Description

On 15 August 2019, a Boeing 787-8 (JA807A) being operated by All Nippon Airways on a scheduled international passenger flight from Tokyo to Beijing Capital as NH963 was in day IMC when it encountered a very brief period of convective turbulence during descent which resulted in serious injuries to two unsecured passengers and minor injuries to two unsecured cabin crew after an approved weather avoidance deviation was modified by ATC.

Investigation

The Investigation of this Serious Incident was delegated to the State of the Operator by China in accordance with ICAO Annex 13 and was commenced by the Japan Transport Safety Board (JTSB) on 22 August 2019. Relevant data was obtained from the aircraft EAFR.

The 54 year-old Captain, who as acting as PF for the flight, was noted to have a total of 15,432 hours flying experience of which 4,523 hours were on type. The 34 year-old First Officer was noted to have a total of 4,331 hours flying experience of which 77 hours were on type.

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