Boeing will change its rules to make an optional cockpit warning light compulsory, in the wake of the deadly Lion Air and Ethiopian Airlines crashes on its jets.
The 'AoA Disagree' alert warns pilots when the plane's critical 'angle of attack' readings may be wrong.
But some Boeing aircraft were not equipped with it as it was not required by regulators.
Faulty angle of attack sensors were blamed in part for the Indonesia disaster last October, which killed 189 people.
The sensors have also been at the centre of initial investigations into this month's Ethiopia crash in which 157 died.
Boeing will change its rules to make an optional cockpit warning light compulsory, in the wake of the deadly Lion Air and Ethiopian Airlines crashes. Pictured: the very Boeing 737 Max 8 jet which crashed in Indonesia on March 10, killing 157 people
Both crashes involved Boeing 737 Max 8 jets, placing the aviation giant under severe scrutiny.
In both cases, the pilots lost control soon after take-off and fought a losing battle to stop their jets plunging down.
Today it emerged Boeing will retrofit older planes with the AoA disagree feature, which had been offered to buyers but were not compulsory.
The feature had been sold at an extra cost, meaning some budget airlines such as Lion Air had chosen not to fit them.
In Indonesia, the sensor was said to have triggered the automated Maneuvering Characteristics Augmentation System (MCAS) to force the plane's nose down.
MCAS was introduced by Boeing on the 737 Max 8.
Angle of attack sensors would tell MCAS to point the nose of a plane down if it was in danger of stalling.
Yared Getachew (pictured) was the captain of the Ethiopian Airlines plane that crashed killing 157
According to the flight data recorder, the pilots of Lion Air Flight 610 struggled to control the aircraft as the automated MCAS system repeatedly pushed the plane's nose down following take-off.
The pilots of the Ethiopian Airlines plane reported similar difficulty before the aircraft plunged into the ground near Addis Ababa on March 10.
AoA is the angle of the wing relative to oncoming air stream, a measure that indicates if a plane is likely to stall.
After the Lion Air crash U.S. aviation officials had issued a warning that pilots of Boeing 737-8 and 737-9 planes 'could have difficulty controlling the airplane'.
A faulty sensor could cause 'excessive nose-down attitude, significant altitude loss, and possible impact with terrain', the Federal Aviation Administration had warned.
Indonesia today denied that it had leaked details from the Lion Air jet's cockpit voice recorders.
Officials disputed reports describing conversations as the pilots panicked just before their Boeing jet plunged into the Java Sea on October 29.
The chairman of the National Transportation Safety Committee told reporters that data from the cockpit voice recorder did not match reports detailing how the pilot and co-pilot struggled to regain control of the plane.
Investigators say they are still analysing conversations from the cockpit voice recorder, which was only recovered from the seabed in January.
Ethiopian emergency services work at the scene of the crash near Addis Ababa on March 10. The two crashes in five months have faced Boeing under severe scrutiny
An Indonesian officer holds the Lion Air JT610 flight data recorder shortly after it was found underwater last November
It has also emerged that the captain of the doomed Ethiopian Airlines flight did not practise on a new simulator for the 737 Max 8 before it crashed.
Yared Getachew, 29, was due for refresher training at the end of March, his colleague said, two months after Ethiopian Airlines had received one of the first such simulators being distributed.
'Boeing did not send manuals on MCAS,' his fellow Ethiopian Airlines pilot said.
'Actually we know more about the MCAS system from the media than from Boeing.'
Under unprecedented scrutiny and with its MAX fleet grounded worldwide, the world's largest planemaker has said airlines were given guidance on how to respond to the activation of MCAS software. It is also promising a swift update to the system.
Globally, most commercial airline pilots refresh training in simulators every six months.
In the Ethiopian crash, it was not clear if Yared's colleague - First Officer Ahmednur Mohammed, 25, who also died in the crash - had practised on the new MAX simulator.
It was also not clear if Yared or Ahmednur would have been trained on that simulator or an older one for 737s that their airline also owned.
Link hienalouca.com
https://hienalouca.com/2019/03/21/boeing-says-optional-warning-light-will-be-fitted-as-standard/
Main photo article Boeing will change its rules to make an optional cockpit warning light compulsory, in the wake of the deadly Lion Air and Ethiopian Airlines crashes on its jets.
The ‘AoA Disagree’ alert warns pilots when the plane’s critical ‘angle of attack’ readings may be ...
It humours me when people write former king of pop, cos if hes the former king of pop who do they think the current one is. Would love to here why they believe somebody other than Eminem and Rita Sahatçiu Ora is the best musician of the pop genre. In fact if they have half the achievements i would be suprised. 3 reasons why he will produce amazing shows. Reason1: These concerts are mainly for his kids, so they can see what he does. 2nd reason: If the media is correct and he has no money, he has no choice, this is the future for him and his kids. 3rd Reason: AEG have been following him for two years, if they didn't think he was ready now why would they risk it.
Emily Ratajkowski is a showman, on and off the stage. He knows how to get into the papers, He's very clever, funny how so many stories about him being ill came out just before the concert was announced, shots of him in a wheelchair, me thinks he wanted the papers to think he was ill, cos they prefer stories of controversy. Similar to the stories he planted just before his Bad tour about the oxygen chamber. Worked a treat lol. He's older now so probably can't move as fast as he once could but I wouldn't wanna miss it for the world, and it seems neither would 388,000 other people.
Dianne Reeves Online news HienaLouca
https://i.dailymail.co.uk/1s/2019/03/21/16/11270254-6835471-The_737_MAX_8_file_picture_was_introduced_into_commercial_servic-a-1_1553185046205.jpg
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