Same story on BBC news page quoting NYT concerning "suppressed data" from the Turkish NG, AMS Feb 2009 investigation.
They talk of a "single sensor" having had an input into the ATS - as far as I can see they mean the RA input.
Interestingly the left RA input was used for ATS speed control whether R or L system is selected. In the initial report BBC says that the crew may have discounted the Left RA failure, thinking it irrelevant while using ATS from the right side. Doesn't excuse monitoring IAS of course. Apparently the source of RA input was not made clear in the FOM.
I know it was on the MD-80. Left RA was mandatory for a Cat 111 approach for that reason.
They are hitting the single sensor aspect and drawing "striking" parallels to the Max AoA input case.
Last edited by Twitter; 20th Jan 2020 at 13:46.
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