Clandestiono
First issue with QH90 was very primitive (but legal at the time) FDR, which did not record attitude or power. In AirRabbit's alternative view on the accident, holes left by primitive recording equipment are filled by conjecture,
By the time of Air Florida it was common practce for the CVR analysis group to consider water fall chart analysis of the CVR traces to track the N2 frequency signal from each engine to assess actual engine power vs time.
It's easy for some to suggest that wing contamination might have played a part (after all the evidence melts immediately after a crash).
However the validated contributions are covered in the NTSB report hence the recommendations regarding engine power set "check'.
The Forum thread we are burried within is an equally important opportunity thread to discuss wing ice as a prime consideration on its own without mixing it up in a controversial message about Air Florida in the Potomac