Boeing's 737 Max revamp could cost it $2.5 bn in best-case scenario

Aircraft maker could end up spending $500 mn on software rejig alone; another #2 bn could go towards delivery delays and reimbursements to airlines for flight disruptions

The software fix for Boeing’s 737 Max models may end up costing the Chicago-based aircraft manufacturer billions of dollars as it redesigns a computerised flight-control system on hundreds of jets sitting idle around the world.

The fixes alone for the revamped version of Boeing’s single-aisle workhorse 737 could cost the company around $500 million if everything is resolved in six to eight weeks, according to Canaccord Genuity analyst Ken Herbert.

Delivery delays and reimbursements to airlines for flight disruptions would add another $2 billion in lost cash flow each month the planes are kept on the ground by regulators, Herbert said. Boeing