An A330 operated by Singapore Airlines (SIA) lost power in both of its engines at 39,000 feet on Saturday (May 23).
The Trent 700 powered aircraft, carrying 194 people on a Singapore to Shanghai flight, descended 13,000 feet before it regained power.
The aircraft landed safely around an hour and a half later.
In a statement, SIA confirmed the incident occurred three and a half hours into the flight after the aircraft "experienced a temporary loss of power" due to bad weather.
SIA said it is launching an investigation into the incident.