Ethiopia Airlines crash prompts comparisons with Air Lion disaster involving same Boeing aircraft – National


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Sunday’s devastating airplane crash in Ethiopia might renew security questions in regards to the latest model of Boeing’s widespread 737 airliner.

The Boeing 737 Max eight operated by Ethiopian Airways crashed shortly after taking off from the capital of Addis Ababa, killing all 157 folks on board.

Ethiopian Airlines crash kills all 157 onboard, including 18 Canadians

The airplane was new. The climate was clear. But one thing was fallacious, and the pilots tried to return to the airport. They by no means made it.

WATCH: Retired flight security analyst says latest incidents involving Boeing 737 could also be as a result of variations between fashions

In these circumstances, the accident is eerily much like an October crash during which a 737 Max eight flown by Indonesia’s Lion Air plunged into the Java Sea minutes after takeoff, killing all 189 folks on the airplane. However security consultants cautioned in opposition to shortly drawing too many parallels between the 2 crashes.

Boeing issues bulletin on 737 Max planes after one crashed in Indonesia

William Waldock, an aviation-safety professor at Embry-Riddle Aeronautical College, mentioned suspicion shall be raised as a result of the identical sort of airplane appeared to crash the identical approach — a deadly nosedive that left wreckage in tiny items.

“Investigators are usually not huge believers in coincidence,” he mentioned.

WATCH: Kenyan Transport Minister confirms 157 on board airplane when it crashed

Waldock mentioned Boeing will look extra carefully on the flight-management system and automation on the Max. However he famous that it is vitally early, and extra shall be recognized after investigators discover and analyze the Ethiopian airplane’s black bins.

Ethiopian Airlines crash: what we know so far about what happened and why

Alan Diehl, a former Nationwide Transportation Security Board investigator, mentioned the similarities included each crews encountering an issue shortly after takeoff, and experiences of enormous variations in vertical velocity throughout ascent, “clearly suggesting a possible controllability drawback” with the Ethiopian jetliner.

However there are a lot of doable explanations, Diehl mentioned, together with engine issues, pilot error, weight load, sabotage or chicken strikes. He mentioned Ethiopian has an excellent status, however investigators will look into the airplane’s upkeep, particularly since that will have been a problem within the Lion Air investigation.

WATCH: Households of Ethiopian Airways crash victims grieve after studying their kinfolk’ fates

Against this, the Ethiopian Airways CEO informed reporters upkeep check-up didn’t discover any issues with the airplane earlier than Sunday’s flight, “so it’s arduous to see any parallels with the Lion Air crash but,” mentioned Harro Ranter, founding father of the Aviation Security Community, which compiles details about accidents worldwide.

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“I do hope although that individuals will anticipate the primary outcomes of the investigation as an alternative of leaping to conclusions primarily based on the little or no information that we all know thus far,” he mentioned.

Boeing representatives didn’t instantly reply for remark. The corporate tweeted that it was “deeply saddened to study of the passing of the passengers and crew” on the Ethiopian Airways Max airplane.

The Chicago-based firm mentioned it will ship a technical to the crash website to assist Ethiopian and U.S. investigators.

READ MORE: Air Canada, WestJet fly 37 planes of the kind that crashed in Ethiopia

A spokesman for the NTSB mentioned the U.S. company was sending a workforce of 4 to help Ethiopian authorities. Boeing and the U.S. investigative company are additionally concerned within the Lion Air probe.

Indonesian investigators haven’t said a trigger for the Lion Air crash, however they’re analyzing whether or not defective readings from a sensor might need triggered an computerized nose-down command to the airplane, which the Lion Air pilots fought unsuccessfully to beat. The automated system kicks in if sensors point out airplane is about to lose raise, or go into an aerodynamic stall. Gaining velocity by diving can stop a stall.

The Lion Air airplane’s flight information recorder confirmed issues with an airspeed indicator on 4 flights, though the airline initially mentioned the issue was fastened.

WATCH: 18 Canadians amongst these on board Ethiopian airplane that crashed, Kenyan minister says

Days after the Oct. 29 accident, Boeing despatched a discover to airways that defective data from a sensor might trigger the airplane to routinely level the nostril down. The discover reminded pilots of the process for dealing with such a state of affairs, which is to disable the system inflicting the automated nose-down actions.

Pilots at some airways, nonetheless, together with American and Southwest, protested that they weren’t totally knowledgeable in regards to the new system. Boeing Chairman and CEO Dennis Muilenburg mentioned in December that the Max is a protected airplane, and that Boeing didn’t withhold working particulars from airways and pilots.

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Diehl, the previous NTSB investigator, mentioned the Ethiopian Airways pilots ought to have been conscious of that difficulty from press protection of the Lion Air crash.

The 737 is the bestselling airliner in historical past, and the Max is the latest model of it, with extra fuel-efficient engines. The Max is a central a part of Boeing’s technique to compete with European rival Airbus.

Boeing has delivered about 350 737 Max planes and has orders for greater than 5,000. It’s already in use by many airways together with American, United and Southwest.

The Lion Air incident doesn’t appear to have harmed Boeing’s capability to promote the Max. Boeing’s inventory fell almost 7 per cent on the day of the Lion Air crash. Since then it has soared 26 per cent increased, in contrast with a four per cent achieve within the Commonplace & Poor’s 500 index.

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