PPRuNe Forums - View Single Post - Air Canada A320 accident at Halifax
View Single Post
Old 7th Nov 2017, 00:55
  #465 (permalink)  
Retired DC9 driver
 
Join Date: Mar 2015
Location: CYUL
Posts: 55
Likes: 0
Received 0 Likes on 0 Posts
Gilles wrote
"How does one verify that one is on the correct vertical path by 500 AGL or 100' above the MDA when doing a a LOC approach ?" In this case, an Airbus on LOC 05 to YHZ,
by correctly setting the published FPA at 0.3 DME from the FAF, then pull the knob. Check the FMA at the top of your PFD, that you are in FPA mode and proper angle is displayed.
This assumes you crossed the FAF at the correct altitude, coupled to the LOC . A Coupled/Selected approach.
No offense Gilles, but sometimes I wonder if the people on this thread are actually pilots, familiar with the automation in Airbus and Boeing aircraft.

see page 1.6.2 in the TSB report as to how the PFD, with FMA above should be displayed on this Coupled/Selected approach. Note the "Bird" ; Velocity Vector is displaced to the side by the crosswind.

ps. there is a small purple circle icon on right side of PFD that displays the FPA "path" (where the larger diamond would be a G/S indication). So that small icon VDEV displays if the aircraft is following the FPA vertical path correctly. The VDEV on the PFD is not to be used as a vertical descent aid.

Last edited by Retired DC9 driver; 7th Nov 2017 at 02:04.
Retired DC9 driver is offline