777-300ER High power run

Doing a high power engin run-up for balancing check (N1 vibrations) on a GE90-115B.
The engine is warmed up for some minutes, then power is set.
First check at 50% N1, then 80% and 100% N1.
The other engine is set to approx. 60% N1 to balance thrust (watch the nose gear when the tested engine is at 100%!)

[@shevaankapuwatte]

One word.
WOW!

[@FSEVENMAN]

I'm sorry but the audio is terrible on that it's a shame

[@gardnersmith3580]

If this jet is rockin' don't come knockin'

[@noah9130]

Impossible to hear anything at high power...

[@SSaugaCriss]

theoretically, how long could it approx run 100% before over-temp? any difference stationary vs with airspeed?

[@StevenWx]

1:12 When you slowly enters the eye of the hurricane/center of the tornado

[@jj-tq4hx]

Does that put stress on the NLG? Looks like it's shaking a whole lot.

[@jerry150686]

It is indeed shaking a lot! But the wheels and the shock absorber are there to dampen all this!