March 12, 2019, © Leeham News: About 40% of the world’s in-service Boeing 737 MAX fleet were grounded by the end of yesterday, Seattle time, after more governments and airlines banned operations.
Singapore was the latest to ban MAX operations from its air space.
The US Federal Aviation Administration said yesterday there isn’t enough information yet from the Ethiopian Airlines crash Sunday to conclude a grounding order is necessary.
But it added that it will issue an order for a mandatory action by April to make improvements to the flight control system. Boeing late Monday confirmed a software upgrade is in the works for its MCAS stall recovery system used on the MAX.
LNA reported early Monday that a plan to implement a software upgrade following the October crash of a Lion Air MAX 8 had not been implemented.
China, which grounded the MAX Monday (local time), has more MAXes than any other region. The USA is second.
China also has the largest backlog of the MAX, according to an analysis by investment bank Credit Suisse.