Provided by Lisa Barrington, Hekyong and Catchpole
Seoul (Reuters) -Eju Airplane, which crashed in December during an emergency landing after a bird’s impact, could fly constantly on the damaged engine, which still operated after the pilots closed another, according to the South Korean researchers’ resume.
Boeing 737-800 instead of landing at the Muano airport without its landing tools down, overestimate the runway and erupted into a fire ball after climbing the quay, killing all 181 people except two.
Investigators have not yet prepared the final reports of the deadly air disaster in South Korean land, but two plane engines began to take up information.
Based on July 19 The update prepared by the researchers and saw Reuters but was not publicly launched after the victim’s family members’ complaints, the left engine did less damage than the right after the bird’s impact, but the left engine was closed 19 seconds after the bird’s impact.
The suitable engine suffered an “surge” and spread the flame and black smoke, but the researchers said “it was confirmed that it creates a sufficient flight output” in a five -page update that contained photos of both engines after the forgery.
There was no reason for crew actions, and the probe is expected to last for months as the researchers reconstruct the technical status and picture of the plane, which its pilots understood.
Experts say most air accidents are caused by many factors and cautiously to prove too much weight.
More questions
Until now, public attention has been focused on the possibility that the crew could close the less damaged engine, restoring memories of 1989. The Boeing 737-400 disaster in Kegworth, England, where pilots closed an intact engine.
The disaster has led to many changes to the rules, including improvements in crew communication and emergency procedures.
The source on Monday said the Reuters said the South Korean probe had “clear evidence” that the pilots had turned off the less damaged left engine after the bird’s impact, quoting a cabbage recording device, computer data and switch found in wrecking.
However, the latest accident renovation also increases the possibility that even the even more damaged engine, which is still operating, could keep the plane upwards longer.
He did not say what level of operation still had the operating engine, and what additional options that could have provided the airplane to the emergency crew, before the jet double doubled and landed in the opposite direction of the runway
Both engines damaged bird strike and both experienced engine vibrations after impact. The right engine has shown serious internal damage, ”said Korean renewal from South Korean Aviation and Railway Accident Investigation Board (Araib), but it did not describe the damage caused by the left engine.
The update did not say how the left engine was working, nor the condition of the systems connected to both engine, former US National Transport Safety Board researcher Greg Feith, when he showed a Reuters translated document.
He said it contains some new facts, but he misses much more, so the Kripto document was presented, he said.
Araib, who plans to publish the final report on a different June, did not immediately respond to the request to comment.
Safety experts say that early reports are customary with little facts and limited analysis until the investigations continue.
January The preliminary report published states that both engines found feathers and blood stains from the duck.
The engines produced by the CFM International, co -owned by the GE and France Safran, were investigated in May and found no defects or data on birds and accidents, the report said.
Families who died in the accident were introduced to the engine’s findings, but investigators asked not to release July 19. Reports, saying that she seemed to blame the pilots without investigating other factors.
The report was detained, but Reuters and South Korean media received copies. Boeing and GE indicated questions about the accident Araib. The saffron did not immediately respond to the request to comment.
Jeju Air said earlier that he was cooperating with Araib and was waiting for the investigation.
Under global aviation rules for civil air investigations, the aim is to find out the causes of the accident without guilt or responsibility.
The Jeju Air Pilots Union said Aaibas “misleading the public”, believing that the left engine was not a problem, given that the bird’s remains were found in both.
The source, who participated in the briefing, said Reuters that investigators told family members that the left engine also suffered a collapsing “surge” by quoting Black Box.
The pilot union and representatives of lost families asked for evidence to support any conclusion.
Relatives say the investigation must also focus on the quay that contains navigation equipment, which, according to safety experts, probably contributed to great deaths.
Global aviation standards require any navigation equipment to be installed at the construction and landing paths, which easily provides an aircraft effect.
The South Korean Ministry of Transport has set seven domestic airports, including muana, with concrete or steel structures, not the materials that are distinguished and said they would improve them.
New structures are taking place, a ministry official told Reuters last week.
(Lisa Barrington and Hekyong Yang Notifications in Seoul and Dan Catchpole Seattle; Extra Hyunjoo Jin Report Seoul; Edited by Jamie Freed)