Experiments · Negative results
FAA 737 MAX airworthiness
Setup and what was tested: experiment card.
Numbers.
Emergency AD 2018-23-51 dated 2018-11-07; Emergency Order of Prohibition 2019-03-13. Types: 737-8 and 737-9 passenger flights continued under the AD; the Order grounded those types in US commerce.
Outcome.
Fail if you treat the AFM directive as the stop; the Order is the binding halt. Analogue only. See W-9.
Key findings
AD 2018-23-51 did not stop 737-8/9 passenger flight; the 2019 emergency order did. The procedure leaf was not the halt.