All Nippon Airways Boeing 777 towards Tokyo Narita suffers engine vibration, dumps fuel and safely returns to Chicago O’Hare, CC BY-SA 3.0, via Wikimedia Commons

On 20 January, an All Nippon Airways Boeing 777-300ER (registered JA787A) operated flight NH8549 between Chicago O’Hare Airport, Illinois, United States, and Tokyo Narita Airport, Japan. Shortly after take-off, the aircraft stopped climbing at 12,000 feet. The pilots squawked a 7700 distress signal and reported to air traffic control that they experienced vibrations on the aircraft’s left engine.

The pilots idled the engine, descended to 6,000 feet and entered a holding pattern to dump fuel in order to reduce its landing weight.

After the fuel dump procedure, the flight safely returned to Chicago Airport.

The article will be updated once more news avails.

Bart Noëth: Since 1996, I have been working in the Belgian airline industry, from a weekend job as a cabin aircraft cleaner to a flight attendant. After the demise of Sabena - in 2001, I created a website called, originally a meeting place for plane spotters and aviation freaks. Since 2017, the website changed into a professional news site. Next to aviation, I love to travel, wine and dine and enjoy my time off(-line) with my girlfriend, friends and family. My favourite football squad is KV Mechelen, I am an Ironman 70.3 finisher and my ambition is to complete a full Ironman.
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