Final Report B788 (JA828A) enroute NW Pacific Ocean, 1 June 2019

Publication info
Category: 
Accident Reports, Loss of Control, Airworthiness
Date of publication: 
26/11/2020

On 1 June 2019, a Boeing 787-8 lost all cabin air conditioning after both packs failed less than an hour from its destination, Narita. When the Cabin Altitude reached 10,000 feet, the descent already commenced was completed as an emergency descent and the flight thereafter was without further event. The Investigation found that although an amended non normal procedure restricting pack resets to a maximum altitude of 35000 feet had been issued almost two months earlier, it was still “under review” at the operator which has since amended their procedures for assessing manufacturer communications which have operational safety implications.

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