For those interested in the CRM question, there is a good discussion on CRM on the Turkish B737 accident at Schiphol, with questions beginning about
here.
CRM first, is just "good breeding", an old-fashioned term from the 50's which in western cultures generally means good manners, respect for others, courtesy without meek compliance or brash disregard, listening first then speaking, reserved judgment in the face of contrary information, clear expression of one's views while maintaining the dignity of the conversation and remembering what people say.
Believe it or not, that can be done in a cockpit and although it's just the beginning, common courtesies work.
It is when ego, narrowed-vision, sense of unquestioned authority, anger, distraction and frustration all interfere with common courtesy, that trouble can occur. In question such as these, settling the matter on the ground is the only course of action.
As I mentioned in that thread, the cockpit is NOT a democracy; legally, historically and practically there is only one decision-maker in the cockpit. CRM is a way of placing all information before the crew. Often a decision is mutual, but in cases of strong disagreement where agreement cannot be reached on a course of action with all knowledge 'on the floor', the captain alone is the decision-maker.
CRM is not politeness and, unless incapacitation or it is clear that the potential for an accident is extreme, it is does not authorize or legitimate taking over the aircraft. Exceptions are clear where there is risk of an accident: The Air Blue A321 accident at Islamabad and the Air India Express accident at Madras and the Garuda approach into Bali were clear circumstances in which it would have been appropriate for the F/O to have taken control.
The law is clear: the captain answers for the safety of life and property, period. Even if s/he wanted to, the captain cannot hand over command authority to anyone board unless incapacitated or absent. CRM is intended to elicit all views relevant to the circumstances at hand, (captain, should we be at this altitude this far out...?", etc.) offered by all crew members. Someone speaking up from the back seat about altitudes, speeds, rates-of-descent, distances, direction, fuel or times is heard first, then considered, then discussed, then acted upon, even if action is no-action.
Such a CRM "moment" can be a quick exchange lasting less than a few seconds, or 10 - 20 seconds long, or a protracted minute unless there's a serious and complicated emergency, (QF32...) in which case it's a very long and demanding exercise for all.
There is nothing "new age" or soft and "psychobabble-ish" about CRM. It requires toughness, training and discipline just like SOPs do.
PJ2