Another 777 panel lost inbound to Narita
 

American Airlines B772 loses panel into Narita.

"An American Airlines Boeing 777-200, registration N755AN performing flight AA-61 (dep Aug 15th) from Dallas Ft. Worth,TX (USA) to Tokyo Narita (Japan), completed a seemingly uneventful flight with a safe landing on Narita's runway 16L.
A post flight inspection revealed a glass fiber panel, size about one square meter (10 square feet) weighing about 2kg/4 lbs, was missing from the fuselage just aft of the trailing edge of the right hand wing."
https://cimg5.ibsrv.net/gimg/www.gmf...f36166dad2.jpg

Looks as though the panel imploded, which suggests it had a blocked outflow valve and got pushed in when external air pressure rose on descent.

I see what you are saying etudiant but the void beneath the panel is not pressurised.

Long time known problem - the support brackets are a poor design and vibration works the fasteners loose.

Perhaps someone needs to go check all similarly-configured 777s with enough flight time to see if it's some form of metal fatigue due to the airflow past that region causing pressure fluctuations and oscillation of the panel.

I assume the thrust reversers don't cause a pressure wave around there? That could cause it to go pop on deceleration. Some poor sod will probably have to sit and listen to the CVR and see if they can hear when it happened.

If enough drop off over Japan, they will be off-the-aircraft and on-the-shelf to pick from.

This wasn't the same panel as the previous 777 in Japan. That proved to be a panel reattached with the wrong hardware making it a high probability of failure. If there are multiple losses of this particular panel can somebody please post the pics? A 4 pound panel falling to the ground is aerodynamically likely to flutter down, not slice like a projectile. Yes, it is not a good thing to lose a panel from a plane type in service over 30 years with millions of cycles but in the overall scheme of things, a turbine disk crashing into an Iowa corn field is news. This???