Boeing is struggling to restart production of its best-selling 737 Max. Here’s why

Since a crippling strike at many of Boeing’s U.S. plane factories ended more than a month ago, progress ramping up production of its best-selling 737 MAX jet has been deliberately slow. Safety inspectors inside the 737 MAX factory outside Seattle laboriously scoured half-constructed planes for flaws they may have missed during the seven-week work stoppage. Other workers poured over manuals to restore their expired safety licenses. The factory was initially so lifeless in...