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  1. #1051
    Member L'avatar di OneShot
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    Predefinito Re: 737 MAX 8 Ethiopian si schianta subito dopo il decollo da Addis Abeba

    "United says it will allow passengers to avoid 737 Max flights"

    https://edition.cnn.com/2019/09/04/b...ers/index.html

  2. #1052
    Senior Member L'avatar di indaco1
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    Predefinito Re: 737 MAX 8 Ethiopian si schianta subito dopo il decollo da Addis Abeba

    Piu' che OT e' un allargamento del discorso ma non sapevo dove postarlo, eventualmente cancelliamo...

    Tim Clark si e' molto lamentato pubblicamente della qualita' e affidabilita' del materiale che i produttori in generale stanno fornendo ultimamente, al di la delle questioni di sicurezza:

    https://simpleflying.com/emirates-cr...boeing-airbus/

    https://www.ft.com/content/1a2e312c-...4-b5ded7a7fe3f

  3. #1053

    Predefinito Re: 737 MAX 8 Ethiopian si schianta subito dopo il decollo da Addis Abeba

    Operazione trasparenza in casa Boeing.

    A former Boeing official who played a key role in the development of the 737 MAX has refused to provide documents sought by federal prosecutors investigating two fatal crashes of the jetliner, citing his Fifth Amendment right against self-incrimination, according to a person familiar with the matter.
    https://www.seattletimes.com/busines...nt-protection/

  4. #1054

    Predefinito Re: 737 MAX 8 Ethiopian si schianta subito dopo il decollo da Addis Abeba

    Nel frattempo...

    European aviation safety agency sets strict demands for Boeing 737 MAX return to flight
    https://www.seattletimes.com/busines...urn-to-flight/

    Europe’s aviation safety agency, which is conducting its own independent review of Boeing’s grounded 737 MAX, is not satisfied with a key detail of Boeing’s fix to the jet. It wants Boeing to do more to improve the integrity of the sensors that failed on the two fatal crashes in Indonesia and Ethiopia, killing 346 people.

    And it’s demanding that Boeing demonstrate in flight tests the stability of the MAX during extreme maneuvers, not only with Boeing’s newly updated flight-control system but also with that system switched off.

    Although Boeing has updated MCAS so that it now takes input from both Angle of Attack sensors on the MAX instead of only one, and won’t operate if they disagree, Ky (Patrick Ky, executive director of the European Union Aviation Safety Agency) indicated EASA finds this insufficient.

    And EASA wants stringent flight tests that prove the MAX’s safety with or without MCAS.

  5. #1055
    Junior Member
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    Predefinito Re: 737 MAX 8 Ethiopian si schianta subito dopo il decollo da Addis Abeba

    Se l’autorità europea mantiene la schiena dritta, Per me la cosa prende una pessima piega per Boeing, e il MAX potrebbe magari tornare a volare solo in America e forse America Latina. Con questi chiari di luna tra usa e Cina non credo proprio che in Asia si facciano rifilare il pacco da Boeing.
    Tutto sta a vedere se in usa iniziano a minacciare ritorsioni verso EU in qualche modo, magari iniziando a cercare qualche magagna sugli airbus, e si sa che chi cerca qualcosa forse lo trova, pure senza incidenti di mezzo. O magari si aumenta direttamente il livello di scontro sul piano commerciale in generale, tanto il pannocchia è già sul pezzo.

  6. #1056

    Predefinito Re: 737 MAX 8 Ethiopian si schianta subito dopo il decollo da Addis Abeba

    Fa benissimo l'EASA, il 737 MAX prima di tornare a volare deve dare tutte le garanzie di affidabilità e non mi pare che per quanto letto sopra ci siamo vicini
    FCO-PSA-FLO-GOA-BLQ-MXP-BGY-REG-CTA-MIR-TNR-NOS-TLE-AUH-DXB-DOH-CMB-BKK-NRT-KBP-BBU-BUD-PRG-BTS-ZRH-MUC-TXL-SXF-LBC-RIX-TLL-VNO-KRK-AMS-CDG-STN-LGW-LHR-LCY-MAD-LIS-OPO-ATH-RHO-PAS-HAV-SCU-LIM-CUZ-AQP-NZA-LPB-NAT-SSA-IOS-GIG

  7. #1057
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    Predefinito Re: 737 MAX 8 Ethiopian si schianta subito dopo il decollo da Addis Abeba

    EI-GFY decollato da CAI. È sopra il Mediterraneo ora direzione nord

  8. #1058

    Predefinito Re: 737 MAX 8 Ethiopian si schianta subito dopo il decollo da Addis Abeba

    Quote Originariamente inviato da rommix Visualizza il messaggio
    EI-GFY decollato da CAI. È sopra il Mediterraneo ora direzione nord
    Era fermo al Cairo da Marzo
    On ne voit bien qu’avec le cœur. L’essentiel est invisible pour les yeux (Antoine de Saint-Exupéry)

  9. #1059
    Senior Member L'avatar di bourne
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    Leno (BS)
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    Predefinito Re: 737 MAX 8 Ethiopian si schianta subito dopo il decollo da Addis Abeba

    Durante tutto il volo è sempre stato sotto i 6.000 metri di quota
    There are only 10 types of people in the world: those who understand binary and those who don't

  10. #1060
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    Predefinito Re: 737 MAX 8 Ethiopian si schianta subito dopo il decollo da Addis Abeba

    Atterrato a Malpensa

  11. #1061

    Predefinito Re: 737 MAX 8 Ethiopian si schianta subito dopo il decollo da Addis Abeba

    On ne voit bien qu’avec le cœur. L’essentiel est invisible pour les yeux (Antoine de Saint-Exupéry)

  12. #1062
    Member L'avatar di OneShot
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    Predefinito Re: 737 MAX 8 Ethiopian si schianta subito dopo il decollo da Addis Abeba

    Quindi si è fatto tutta la traversata con flaps 1 (che inibisce il MCAs?) mettendoci 1he 20 più di un volo normale?
    La foto è copyright Leonardo Barberi in persona!

  13. #1063

    Predefinito Re: 737 MAX 8 Ethiopian si schianta subito dopo il decollo da Addis Abeba

    Quote Originariamente inviato da OneShot Visualizza il messaggio
    Quindi si è fatto tutta la traversata con flaps 1 (che inibisce il MCAs?) mettendoci 1he 20 più di un volo normale?
    La foto è copyright Leonardo Barberi in persona!
    Scusa la domanda stupida: è stato questo a influire sulla durata o la velocità mas di 444 chilometri orari?

  14. #1064
    Senior Member L'avatar di alitaliaboy
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    Predefinito Re: 737 MAX 8 Ethiopian si schianta subito dopo il decollo da Addis Abeba

    Problemi anche sull’A320 sul centro di gravità. E Lufthansa deve bloccare l’ultima fila degli A320 Neo. Il problema principale è stato l’aggiunta di una fila in più e lo spostamento delle aft toilette nel Galley posteriore.

    As we all know, nowadays airlines do everything they can to squeeze as many seats as possible onto planes, especially when we’re talking about short haul configured aircraft of European airlines.

    They’ve been able to make these planes more “efficient” by reducing legroom, making the seats thinner, and eliminating as much galley and bathroom space as possible.

    Well, an airline is now facing a situation where they’re being forced to block a row of seats on a very efficient plane for a surprising reason.

    Lufthansa’s A320neo

    The A320neo is the most fuel efficient version of the A320, with the “neo” designation standing for “new engine option.” Lufthansa has quite a few of these planes in their fleet. Initially they had “only” 180 seats of these planes, but they’ve been able to squeeze 186 seats onto these planes. Woot, woot, well done, Lufthansa!



    A320neo Center Of Gravity Issues

    While the airline might be proud of how many seats they’ve squeezed onto the plane, Simple Flying is reporting that Lufthansa is now blocking the last row of seats on A320neos due to center of gravity concerns. Could a 150,000 pound plane really be thrown off by passengers sitting in the last row? Yes and no.

    We all know about the issues that the 737 MAX has had, and while not quite as serious, some issues have also been identified with the A320neo.

    The European Union Aviation Safety Agency (EASA) has discovered a problem with the center of gravity of the A320neo. Essentially there’s a very narrow set of circumstances under which the A320neo’s elevator and aileron computer may not correctly compensate for the situation the plane is facing.


    It seems that the most common situation here is when a plane is landing, and if it has to perform a go around. In these situations the elevator and aileron computer should compensate for the center of gravity being slightly off. But it has been discovered that with a center of gravity towards the rear of the aircraft, the computer may not respond correctly.

    Now, it’s worth knowing that this has never been encountered during operations, but rather was discovered during analysis and laboratory testing.

    Still, the EASA has issued an airworthiness directive limiting the aft CG, which is below the previous limit.

    Why Is This Specifically Impacting Lufthansa’s A320neos?

    Interestingly this issue only impacts Lufthansa A320neo aircraft with the new Space Flex cabins. These planes feature an extra row of seats, and the way they’re able to squeeze in those extra seats is by more efficiently using every part of the aircraft.

    For example, the bathrooms are at the very back of the plane behind the galley, using space that previously wasn’t used. Clearly this moves the center of gravity of the plane back a bit.

    Bottom Line

    Sometimes when you’re flying a turboprop or small regional jet they’ll ask you to move around for weight & balance, though you wouldn’t expect a row of seats would have to be blocked on an A320.

    It would appear that Lufthansa will keep this seat blocking in place for the foreseeable future, and not actually reconfigure any planes. It’s expected that a software fix will be available sometime next year that fixes this.

    Interesting stuff, eh?





    https://onemileatatime.com/lufthansa...yZiqCMlWbkqNJc

  15. #1065

    Predefinito Re: 737 MAX 8 Ethiopian si schianta subito dopo il decollo da Addis Abeba

    A quanto mi risulta i NEO di Lufthansa sono configurati a 180 e non a 186.


    Quote Originariamente inviato da alitaliaboy Visualizza il messaggio
    Problemi anche sull’A320 sul centro di gravità. E Lufthansa deve bloccare l’ultima fila degli A320 Neo. Il problema principale è stato l’aggiunta di una fila in più e lo spostamento delle aft toilette nel Galley posteriore.

    As we all know, nowadays airlines do everything they can to squeeze as many seats as possible onto planes, especially when we’re talking about short haul configured aircraft of European airlines.

    They’ve been able to make these planes more “efficient” by reducing legroom, making the seats thinner, and eliminating as much galley and bathroom space as possible.

    Well, an airline is now facing a situation where they’re being forced to block a row of seats on a very efficient plane for a surprising reason.

    Lufthansa’s A320neo

    The A320neo is the most fuel efficient version of the A320, with the “neo” designation standing for “new engine option.” Lufthansa has quite a few of these planes in their fleet. Initially they had “only” 180 seats of these planes, but they’ve been able to squeeze 186 seats onto these planes. Woot, woot, well done, Lufthansa!



    A320neo Center Of Gravity Issues

    While the airline might be proud of how many seats they’ve squeezed onto the plane, Simple Flying is reporting that Lufthansa is now blocking the last row of seats on A320neos due to center of gravity concerns. Could a 150,000 pound plane really be thrown off by passengers sitting in the last row? Yes and no.

    We all know about the issues that the 737 MAX has had, and while not quite as serious, some issues have also been identified with the A320neo.

    The European Union Aviation Safety Agency (EASA) has discovered a problem with the center of gravity of the A320neo. Essentially there’s a very narrow set of circumstances under which the A320neo’s elevator and aileron computer may not correctly compensate for the situation the plane is facing.


    It seems that the most common situation here is when a plane is landing, and if it has to perform a go around. In these situations the elevator and aileron computer should compensate for the center of gravity being slightly off. But it has been discovered that with a center of gravity towards the rear of the aircraft, the computer may not respond correctly.

    Now, it’s worth knowing that this has never been encountered during operations, but rather was discovered during analysis and laboratory testing.

    Still, the EASA has issued an airworthiness directive limiting the aft CG, which is below the previous limit.

    Why Is This Specifically Impacting Lufthansa’s A320neos?

    Interestingly this issue only impacts Lufthansa A320neo aircraft with the new Space Flex cabins. These planes feature an extra row of seats, and the way they’re able to squeeze in those extra seats is by more efficiently using every part of the aircraft.

    For example, the bathrooms are at the very back of the plane behind the galley, using space that previously wasn’t used. Clearly this moves the center of gravity of the plane back a bit.

    Bottom Line

    Sometimes when you’re flying a turboprop or small regional jet they’ll ask you to move around for weight & balance, though you wouldn’t expect a row of seats would have to be blocked on an A320.

    It would appear that Lufthansa will keep this seat blocking in place for the foreseeable future, and not actually reconfigure any planes. It’s expected that a software fix will be available sometime next year that fixes this.

    Interesting stuff, eh?





    https://onemileatatime.com/lufthansa...yZiqCMlWbkqNJc

  16. #1066

    Predefinito Re: 737 MAX 8 Ethiopian si schianta subito dopo il decollo da Addis Abeba

    FAA chief to meet with Boeing officials, test 737 MAX simulator
    David Shepardson
    WASHINGTON (Reuters) - New Federal Aviation Administration (FAA) chief Stephen Dickson plans to fly to Seattle this week to fly “newly configured” Boeing 737 MAX software in a simulator and will visit with Boeing (BA.N) officials, the agency said Monday.
    Boeing plans to revise the 737 MAX software to take input from both angle-of-attack sensors in the MCAS anti-stall system linked to two deadly crashes that led to a global grounding of the plane in March. But it is not clear when it will conduct a key certification test flight, a step needed before the FAA can return the plane to service. The FAA confirmed that Dickson, who took over as administrator in mid-August, has no firm timeline for the grounded 737 MAX to resume flights or when Boeing will turn over final documentation. The FAA said Dickson also plans to visit with the FAA aircraft certification team in Seattle. Separately, a spokeswoman for Representative Peter DeFazio, who chairs the House Transportation Committee, confirmed that Boeing had declined his invitation to testify at an upcoming House hearing. “Boeing is working diligently and transparently with committees in both the House (of Representatives) and the Senate to ensure that proper information is being shared and we will continue to do so,” the company said in an e-mailed statement. Boeing’s board is expected to consider changes proposed by a board committee later this week, people briefed on the matter said. Reuters reported in August that the committee review would find the company needs to reorganize its engineering reporting lines company-wide and ensure higher ranking officials, including its CEO, get faster feedback about potential safety concerns from lower levels of the company. The changes are intended to boost the transparency of engineering decisions and accelerate efforts to share safety information as widely and swiftly as possible across Boeing’s global businesses and factories, Reuters reported.
    Boeing has said it plans to conduct a certification test flight in the “September time frame” but Boeing Chief Executive Dennis Muilenburg did not give a specific date when asked last week. Federal prosecutors aided by the FBI, the Department of Transportation’s inspector general and several blue-ribbon panels are investigating the 737 MAX as well as how the FAA certifies new aircraft. Major U.S. airlines have canceled flights into December as a result of the MAX grounding, including American Airlines Group Inc (AAL.O) and United Airlines (UAL.O), while Southwest Airlines Co (LUV.N) has canceled flights into early January.

    https://www.reuters.com/article/us-e...-idUSKBN1W12TM

  17. #1067
    Socio 2015
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    Oct 2006
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    Londra.
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    16,242

    Predefinito Re: 737 MAX 8 Ethiopian si schianta subito dopo il decollo da Addis Abeba

    FAA chief says he won’t certify the Boeing 737 Max until he flies the plane himself


    • FAA Administrator Steve Dickson’s decision to fly the Max before giving it final approval for commercial service is a new development
    • Dickson’s comments come on the eve of his visit to Boeing facilities outside Seattle.
    • The FAA administrator will meet with Boeing executives and be briefed on software updates to the 737 Max flight control system.


    Federal Aviation Administrator Steve Dickson says he won’t allow the Boeing 737 Max jets to return to the skies for service until he personally flies the plane himself.
    “I’m the final signoff authority in the U.S., and I’m not going to sign off on the aircraft until I would fly it myself,” Dickson told NBC News during an interview in Las Vegas.

    NBC Correspondent Tom Costello pressed Dickson, a former pilot who is licensed to fly the 737, if he will actually pilot the plane on a short flight before officially approving the Max for commercial operation. “I will fly the Max,” said Dickson.

    Dickson’s comments come on the eve of his visit to Boeing facilities outside Seattle. While there, Dickson will meet with Boeing executives and be briefed on software updates to the 737 Max flight control system. He will also climb into a simulator and test out the changes Boeing engineers have made to the Max.
    Earlier this week, in his first interview since taking over the FAA, Dickson told CNBC, “I can guarantee you that the airplane will not be flying again until I’m satisfied that it’s the safest thing out there.”
    Dickson’s decision to fly the Max before giving it final approval for commercial service is a new development. The official process calls for Boeing to file for recertification after a test flight that includes one pilot from Boeing and one pilot from the FAA.
    During that recertification flight, the crew will put the plane through a checklist of maneuvers to see how the plane handles those situations. After the flight, flight engineers from Boeing and the FAA will review the results. If those results meet the targets Boeing and the FAA agreed to in advance, the company will then file for recertification.

    Because Dickson is not a test pilot, he will not be in the cockpit during the Max recertification flight. When Dickson would fly the plane has not yet been determined.
    “We will work to meet the administrator’s requests and we continue to support global regulators as we work to safely return the aircraft to service,” said Chaz Bickers, a spokesman for Boeing.

    https://www.cnbc.com/2019/09/18/faa-...e-himself.html

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