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Old 7th May 2023, 13:09
  #238 (permalink)  
helispotter
 
Join Date: Nov 2010
Location: Australia
Age: 58
Posts: 313
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Juan Browne (blancolirio) has provided a good review of ATSB's preliminary report with his own observations:


One of the main points he makes is that it always takes time for turbofans to build up thrust after throttles are increased and the lag between throttle-up and response is shown in one of the ASTB figures.

I wonder how many more metres may have been enough to just clear that ridge and avoid the accident?

He discusses the altitudes in the ATSB data plots from about 22:55. At 23:16 he mentions an apparent discrepancy between Corrected Altitude and the Radar Altimeter plot. But I see on the ATSB plots, they refer to "Radio Height Left (FEET)" and "Corrected Altitude (FEET)". Dumb question but is the "Radio Height" a distance to the actual ground as opposed to height above sea level of "Corrected Altitude"? *

* Seems so, since this all roughly lines up in the report: (Corrected Altitude) - (Radio Height) = (Terrain Altitude)

Last edited by helispotter; 7th May 2023 at 15:07. Reason: Added question re altitudes.
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