Boeing has grounded its entire global fleet of 737 Max aircraft
after investigators uncovered new evidence at the scene of the fatal
Ethiopian Airlines crash.
The US plane-maker said it would suspend all 371 of the aircraft.
The Federal Aviation Administration said fresh evidence as well as
newly refined satellite data prompted the decision to temporarily ban
The FAA had previously held out while many countries banned the aircraft.
The crash on Sunday in Addis Ababa killed 157 people. It was the
second fatal Max 8 disaster in five months after one crashed over
Indonesia in October, claiming 189 lives.
Boeing said it “continues to have full confidence in the safety of the 737 Max”.
However, it said that after consultation with the FAA and the
National Transportation Safety Board – which is conducting an
investigation into the Ethiopian Airlines crash – it had decided to
ground the flights “out of an abundance of caution and in order to reassure the flying public of the aircraft’s safety”.
The FAA said: “The grounding will remain in effect pending
further investigation, including examination of information from the
aircraft’s flight data recorders and cockpit voice recorders.”
American Airlines said 24 of its aircraft would be affected by the
suspension, adding: “Our teams will be working to rebook customers as
quickly as possible, and we apologise for any inconvenience.”
United Airlines said that its Max aircraft account for roughly 40 flights a day.
It said: “Through a combination of spare aircraft and rebooking
customers, we do not anticipate a significant operational impact as a
result of this order.”
Earlier on Wednesday, Canada grounded the planes after its
transport minister Marc Garneau said he had received new evidence about
He said that satellite data showed possible similarities between
flight patterns of Boeing 737 Max planes operating in Canada and the
Ethiopian Airlines plane that crashed.
He said: “As a result of new data that we received this
morning, and had the chance to analyze, and on the advice of my experts
and as a precautionary measure, I issued a safety notice.”
President Donald Trump initially announced that the FAA would be
making an emergency order following “new information and physical
evidence that we’ve received from the site and from other locations and
through a couple of other complaints”.
It has emerged that pilots in the US had complained late last year
about problems controlling the Boeing 737 Max 8 during take-off.
They reported difficulties similar to those that contributed to the fatal Lion Air crash in Indonesia in October.
The Ethiopian Airlines plane crashed just six minutes into its flight.
Flightradar24, an air traffic monitor, said the plane’s “vertical speed was unstable after take-off”.
Documents reveal that pilots flying last November reported engaging
autopilot only for the aircraft’s nose to pitch lower, prompting the
warning system to exclaim: “Don’t sink! Don’t sink!”
Two US pilots reported separate incidents involving the 737 Max’s automatic anti-stalling system in November.
The feature, which was new to the 737 Max family, is designed to keep the plane from stalling.
The system prevents the aircraft from pointing upwards at too high an angle, where it could lose its lift.
However, according to filings with the US Aviation Safety Reporting
System, which pilots use to disclose information anonymously, it
appeared to force the nose down.
In both cases, pilots were forced to intervene to stop the plane from descending.
After the Lion Air crash, Boeing issued a bulletin on what to do
regarding erroneous readings from the sensor, which sends out
information about what angle a plane is flying at.
But another pilot said that “it did nothing” to address the problems with the sensor.
They added: “I am left to wonder: what else don’t I know? The flight manual is inadequate and almost criminally insufficient.”