Boeing blew through $4bn last quarter in response to 737 Max blowout incident

Plane maker beat lowered expectations but still burned billions in response to crisis and reported first revenue drop in seven quarters

Boeing burned through nearly $4bn in the last quarter as it scrambled to contain a safety crisis unleashed by a mid-flight blowout of a cabin panel on a brand-new 737 Max 9 jet.

The US aircraft maker has been left reeling by the incident in January, which raised questions about its bestselling commercial plane, and warnings from a whistleblower about other sections of its production line.