Boeing CEO acknowledges mistakes were made following mid-air panel blowout
171 planes in U.S., dozens in other countries grounded to allow for inspections
Boeing CEO Dave Calhoun publicly acknowledged that the company had made mistakes following last week's mid-airblowout on a full Alaska Airlines flight, saying it would work with regulators to make sure it "can never happen again."
The statements are the first public acknowledgement of errors by Boeingseveral days after the incident on one of its737 MAX 9 planes Friday whena panel blew out while the flight out of Portland, Ore.,was in the air.
"We're going to approach this number one acknowledging our mistake," Calhoun told employees, according to an excerpt released by Boeing. "We're going to approach it with 100 per centand complete transparency every step of the way."
He toldemployees the company will make sure "every next airplane that moves into the sky is in fact safe," andpraised the Alaska Airlines crew that made a swift emergency landing back in Portland.
Officials say there were no serious injuries among the 171 passengers and six crew members, though the interior of the plane suffered extensive damage.
Panel slid up, flew off,investigators say
Federal investigators in the U.S. say a door panel slid up before flying off an Alaska Airlines jetliner last week, and they are looking at whether four bolts that were supposed to help hold the panel in place might have been missing when the plane took off.
During Alaska Airlines flight 1282 on Friday night, a panel known as a door plug covering a spot left for an emergency door tore off the plane as it flew 4,800 metres above Oregon.
Roller guides at the top of one of the plugs broke for reasons the investigators don't fully understand yet allowing the entire panel to swing upward and lose contact with 12 "stop pads" that keep the panel attached to the plane'sdoor frame, National Transportation Safety Board (NTSB) officials said at a news briefing in Portland, Ore.
NTSB Chair Jennifer Homendy said the safety board was investigating whether four bolts that help prevent the panel from sliding up were missing when the plane took off from Portland or whether they blew off "during the violent, explosive decompression event."
The comments by the NTSB Mondaycame shortly after Alaska Airlines and United Airlines reported separately that they found loose parts in the door plugs of some other Boeing 737 Max 9 jets.
"Since we began preliminary inspections on Saturday, we have found instances that appear to relate to installation issues in the door plug for example, bolts that needed additional tightening," Chicago-based United said.
Alaska said that as it began examining its Max 9s, "Initial reports from our technicians indicate some loose hardware was visible on some aircraft."
The findings of investigators and the airlines are ratcheting up pressure on Boeing to address concerns that have grown since the terrifying fuselage blowout.
Boeing has called an online meeting for all employees Tuesday to discuss safety.
The U.S. Federal Aviation Administration (FAA) said on Tuesday afternoon that Boeing was revising its instructions for inspections and maintenance, which the FAA must still approve before checks can begin on the 171 grounded planes.
The FAA said it "will conduct a thorough review" and public safety will "determine the timeline" for returning the Max 9 to service.
Boeing said in a statement Tuesday, "We continue to be in close contact with our customers and the FAA on the required inspections. As part of the process, we are making updates basedon their feedback and requirements."
The company, which has had problems with various planes in recent years, pledged to "help address any and all findings" that airlines make during their inspections of Max 9 jets. Boeing has delivered more than 200 to customers around the world, but 171 of them were grounded by the Federal Aviation Administration on Saturday until the door plugs can be inspected and, if necessary, fixed.
Airlines in several other countries have also grounded 737 Max 9 planes. No Canadian airlines flythe Max 9.
The door plugs are inserted where emergency exit doors would be located on Max 9s with more than about 200 seats. Alaska and United have fewer seats in their Max 9s, so they replace heavy doors with the plugs.
The panels can be opened for maintenance work. The bolts prevent the mechanism from moving upward on rollers when the plane is in flight.
Panel lands in backyard
The lost door panel was found Sunday near Portland in the backyard of a school teacher's home. NTSB officials said it will be sent to the agency's lab in Washington, D.C., for detailed study that might help pinpoint why the plug broke loose.
Alaska and United have cancelled hundreds of flights since the weekend because of their grounded planes. Alaska has 65 Max 9s, and United has 79. The airlines waited until Monday before Boeing and the FAA completed instructions for how to inspect their planes.
The jet involved in Friday's blowout is brand-new, having been put in service in November. After a cabin-pressurization system warning light came on during three flights, the airline stopped flying it over the Pacific to Hawaii. Some aviation experts questioned why Alaska continued using the plane on overland routes until it figured out what was causing the pressurization warnings.
Homendy said Monday, however, that NTSB has seen no evidence to link the warnings with the blowout of the door plug.
The Max is the newest version of Boeing's 737, a twin-engine, single-aisle plane that debuted in the late 1960s and has been updated many times. The 737 has long been a workhorse for airlines on U.S. domestic routes.
Shares of Boeing fell eight per cent and Spirit AeroSystems, which installs the door plugs on Max jets, dropped 11 per cent on Monday.
With files from The Associated Press
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