Correct me if I'm wrong but AF447 ACARS was received via Satcom. In Egypt Air 804's case the ACARS was received by a ground station via VHF or VDL mode 2. For this reason it would not be ideal to draw too many comparisons. But there are a few points that are in line with the AF447 report:
ACARS does not transmit all ECAM's it is a subset that is programmed by the operator. This may introduce some differences between operators.
The messages are not real time, the data is processed before transmission and placed in a queue. This may result in a delay before a message is transmitted.
In addition, ACARS in VHF mode only transmits at 2400bps and there is no round trip confirmation in any mode.
If the aircraft was severely damaged (fire, decompression, bomb etc.) one would not expect comprehensive ACARS messaging; only a short burst that is a subset of the faults or cautions that existed. The ACARS transmissions may well be consistent even with a rapid decompression. However, the evidence points to the aircraft colliding with the sea at high speed and largely intact.
Many of the theories proposed in this thread are not consistent with the "evidence" so far (if any of it is true?!). There are quite a few things that can be ruled out as very unlikely already.
Last edited by wheelsright; 25th May 2016 at 15:51.
Reason: Improve accuracy