Bergerie1, noting the warning and the ‘red’ caveat against the original comment, the finding of a major safety forum still stands, and could trigger action.
Is there any real risk stemming from this interpretation of Vmca, or does the finding represent a disjoint between certification and operations.
If a disjoint, why; what has changed to invalidate a well established requirement.
Modern aircraft designs have improved; some have automatic compensating controls, requiring less training and handling skill. Thus aircraft without such systems could be deemed difficult to fly or that the requirement is no longer aligned with the reality of modern operations.
There are calls by operators to be more involved with certification, to work closely with manufacturers. Although a good objective, such involvement may be no-more useful or practical than today’s processes.
Also this approach might lead to a change in meaning of certification requirement; a historical view was a measure of aircraft acceptability - a benchmark, where types could be compared and thus achieve some standardisation which initiated piloting standards.
Some operators wish to reverse this process, line pilots defining what an aircraft design should be according to the need for training - piloting skills as currently exist !