PPRuNe Forums - View Single Post - EgyptAir 804 disappears from radar Paris-Cairo
Old 25th May 2016, 08:00
  #761 (permalink)  
vmandr
 
Join Date: Feb 2007
Location: here and there
Age: 69
Posts: 76
Likes: 0
Received 0 Likes on 0 Posts
the interim report no 1 in English - AF447

https://www.bea.aero/docspa/2009/f-c...90601e1.en.pdf

and an excerpt re ACARS p50-51

Interpretation of the messages
Interpretation of the maintenance-related messages is made delicate by the
following factors:
 this type of message is only transmitted once, at the first occurrence. It
can only indicate that a fault has appeared. If the fault has disappeared, no
message is transmitted to indicate this,
 some messages concerning the aircraft’s configuration such as stall or
overspeed warnings are not recorded,
message-timing by the CMC is accurate to within one minute,
 the order in which these messages are transmitted does not necessarily
correspond to the associated sequence of events,
 the limited rate of communication by satellite does not make it possible to
determine directly the time of message reception precisely to the nearest
second,
 in the CFR, a class 1 fault message is not necessarily accompanied by a
cockpit ef-fect, and it is possible that a cockpit effect message is not the
consequence of a fault message.

and the flow...

acars flow - AF447.jpg

Last edited by vmandr; 25th May 2016 at 08:10.
vmandr is offline