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Old 13th Mar 2019, 07:39
  #955 (permalink)  
Join Date: Apr 2010
Location: transient
Age: 72
Posts: 16
Once bitten, twice shy... or NOT?

We pointed earlier ( post no 899 ) that Amsterdam and Lion Air accidents were in part due to single channel/sensor.

In fact on 31 July 2009, Boeing informed airlines about a future Service Bulletin that they are going to rectify the situation in regard to Amsterdam rad alt problem by a comparator function between the measured heights of the left and right radio altimeter systems.


P.S. related page 130 bottom part.

Last edited by wetbehindear; 14th Mar 2019 at 04:32. Reason: wrong page number
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