Anyone understands why power was REDUCED before flying low into the basin?
Was it an attempt to synch the engines? Or was it just because they wanted to avoid accelerating during their slight descent to "look through" the "eye" on the ridge? Or was it to reduce turbulence?
I am confused as this power reduction is so much in contrary to usual logic, that if you don't have height (AGL), you better have lots of speed and power.
HB-HOT flew past the Tschingelhörner mountain peaks and began to reduce in altitude, dropping more than 15 m in approximately 6 seconds. During this phase, the power of the engines was rapidly reduced by 30 to 50 rpm, which meant that the engines were increasingly running at a similar speed (5) . During this process, the pitch angle increased and the flight path angle continuously became more negative.
(5) This course of events is typical when synchronising the speeds of the engines"