Declining pilot skills is an issue but by discussing it here we infer it was applicable to 447.We cant know that.
Lemurian made an assertion that the pilot can override the Flight Control Computer commands if the pilot feels that those commands are based on corrupted sensory data.How is this achieved?Can he break the chain only at the source(de-select ADR/IR) or can he intervene at the control level(de-select PRIM #)?Is there a recognized procedure or is it astronauts-only?How much lateral-thinking and system knowledge would be required in the diagnosis and corrective action?