Re: [SystemSafety] MH370

From: Bernd Sieker < >
Date: Thu, 13 Mar 2014 14:14:58 +0100

Hash: SHA512

On 13.03.2014 13:35, Robert Schaefer at 300 wrote:
> The latest from the Wall Street Journal suggests the plan may have
> been commandeered and the transponders shut off.

WSJ makes it sound like a certainty, but the article gives no details whatsoever beyond "someone suggested that ... perhaps ...".

It doesn't really make sense. As far as we know, 9M-MRO did not send any ACARS messages after the transponder went silent. But even if it did, Malaysia Airlines did not have the SATCOM option for ACARS, so downlink must have been to a ground station. Ground-based comms are range-limited, so Rolls-Royce would presumably know, or the ACARS operator could find out, which station received the messages, and that wouldrestrict the search area, and not widen it to a huge 2000+ NM-radius circle.





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systemsafety_at_xxxxxx Received on Thu Mar 13 2014 - 14:15:07 CET

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