When Harvino mentioned a “flight-control problem,” he was wrong. A few months earlier, another Boeing-737 Max crashed in Indonesia, still a few minutes after take-off, killing the 189 people aboard the 610 Lion Air flight. had gone along for the ride. The problem exists for many American and European pilots, too. At that altitude, it was nearing the 737’s maximum engineered aerodynamic airspeed of approximately 340 knots. during the airplane’s testing and certification process. It includes a visceral sense of navigation, an operational understanding of weather and weather information, the ability to form mental maps of traffic flows, fluency in the nuance of radio communications and, especially, a deep appreciation for the interplay between energy, inertia and wings. For mysterious reasons, this man was not mentioned in subsequent Indonesian accounts. Appropriately, the controller acknowledged Suneja’s transmission without quibbling and responded, “No restriction.” He meant that Suneja was cleared to fly at whatever altitude he chose. Immediately, Boeing responded that it would have also improved the competitor of the Airbus A320, the Boeing 737, by increasing the power of its engines, while decreasing its consumption. The co-pilot’s stick shaker had not activated. They are big and fat and right behind the throttles. Their training histories and qualifications therefore remain unknown. The nose drop can be drastic, typically about 30 degrees in a classic 737. A race to the bottom comes to mind. This is another of Boeing’s bewildering failures — the implementation of an automated nose-down input meant to make for an authentic control feel but allowed to keep at it again and again while throwing the airplane wildly out of trim. But did they get exposed anywhere else? They had a stick shaker. What caused the Boeing 737 Max to crash? “Look,” he said, “we know as a fact that half of airline pilots graduated in the bottom half of their class.”. Boeing called the result the Max. His co-pilot was a 25-year-old named Ahmed Nur Mohammod Nur, who had graduated from the academy just a few months before and had started serving as a 737 co-pilot when he had merely 154 hours of flight time. “Boeing’s employees chose the path of profit over candor by concealing material information from the FAA concerning the operation of its 737 Max airplane and engaging in … Deregulation had transformed Indonesia into a complicated Wild East of flying, inhabited by consumers who were immune to prestige, just as Lion Air’s Kirana had predicted. On March 10, 2019, a Boeing 737 Max crashed on the ground 10 minutes after takeoff in Bishoftu, Ethiopia. Residents of Europe and the United States generally did not know or care, but many of the ordinary Indonesians who had grown to hate their airlines were in favor of the ban simply as a form of punishment. Suddenly it was the captain, Suneja, who was on the radio, and his transmissions made little sense. Mohammod said: “Stab trim cutout! Airplanes are living things. Because rescue vehicles could not cross the ditch, firefighters could not get their equipment close enough to suppress the flames effectively, and the fire burned for more than two hours. Having given up at typewriter sales, he was determined to succeed at something else. And if they don’t want to release the information, they won’t. The free-for-all soon raised questions about how to manage safety. 3. certification of the type and not be treated officially as a new airplane. Apparently, this caused such a lurch that back in the cabin some passengers started praying. As the airplane approaches that critical angle, the first event is a stall warning in the cockpit. Here’s what happened. The MCAS was fast and relentless. But panic was growing in the cockpit. Lion Air’s fleet grew by even larger multiples as the airline gobbled up an increasing share of the market, and Kirana turned out to be a master of financial dealings. A plane takes off and fly thanks to a depression that forms over their wings. Airplanes fly because their wings greet the oncoming air at a positive angle, known as an angle of attack. Both men were aware of the Lion Air tragedy. It is impossible to know if he was a better airman than the pilots in the front or simply had the advantage of an overview. The Lion Air 610 accident crew — Capt. The Boeing 787 project went over budget by $12-18 billion, with delays and unexpected costs as the culprits. Dave Carbaugh, the former Boeing test pilot, had the most charitable view of the matter. They had a stick shaker sounding off and some unreliable indications, but the still-unknown MCAS had not yet engaged because the wing flaps remained extended. Many of those repair stations in Miami are junk peddlers.” And the Lion Air mechanics? I was not the only one with questions. Roughly one minute after takeoff and 1,000 feet above the ground, they engaged the autopilot on the captain’s side. Each appears to comply with guidelines laid out in a document known as Annex 13 that is disseminated by the International Civil Aviation Organization, a United Nations agency. Accompanying the drastic expansion in traffic was a disproportionate rise in accidents. The twist is that Kirana could have built his airline on the Airbus 320, an airplane that is less challenging to fly, but instead chose the equivalent Boeing 737, which counts on pilots as the last resort if something mechanical or otherwise goes wrong. At the time, the industry remained regulated. And the U.N. and I.C.A.O. Boeing believed that in the worst case, a false positive would present as a mere runaway trim, a problem any pilot would know how to handle. A set of independent duplicate sensors drive the co-pilot’s (right side) display. A preliminary report about the Lion Air 737 MAX 8 Crash which took place in late October has been released. was forced to retreat from its initial defense of the airplane, Boeing had to accept a public onslaught. That changed over time. It can be thought of as a balance point, or the nose attitude at which an airplane naturally rides when no up-or-down elevator-control deflections are applied. But apparently Suneja did not understand. 25 of learning to fly a 737. In the maintenance log in Bali, the company technicians documented replacing the angle-of-attack vane and testing it. But we carried only freight. A few seconds later, he unnecessarily asked the controller for a block clearance to all altitudes 3,000 feet above and below his current altitude for traffic avoidance. Those two switches are still off? He may have made that choice because the airplane was flying at aerodynamic speeds in excess of 300 knots, which is not only fast for that altitude but also at least 50 knots faster than the maximum flap speed and enough to generate a loud overspeed clacker in the cockpit. “Emergency” is a riveting word, and it provided the urgency that Boeing had lacked. The first was the severity of the pitch-down trim, which ran twice as fast as a regular runaway — hence the praying in the cabin. Everything seemed fine during the takeoff roll, but as soon as he hauled back on his control column and the airplane lifted off, the angle-of-attack sensor went haywire, the stick shaker began to rattle the left-side controls and Suneja lost reliable indications of airspeed and altitude on his flight display. The controller, who had just heard Suneja say he did not know his altitude, asked him what altitude he wanted. The MCAS as it was designed and implemented was a big mistake. Kirana has become a major Airbus customer — but for other airlines he now controls. Normally two pilots train in a simulator at a time, with an instructor seated behind them — so, three in the box. He was speaking specifically about Malaysia’s investigation into the mysterious disappearance of Flight 370, the Malaysia Airlines Boeing 777 lost in 2014, a case to which he was assigned. Apparently he had taken over the desperate search through the checklists and handed the flying to Harvino. Eyewitnesses who saw a flash, that was probably the landing lights coming out of the bottom of the clouds. Lion Air 610 climbed to 5,000 feet and stayed there shakily for an additional six minutes. Because of the descent, a ground-proximity “DON’T SINK” warning sounded. In the case of the Ethiopian investigation, we have an airline and an investigative body that historically have not been able to isolate themselves from the country’s dysfunctional political life. On this leg, he would handle the radio communications. The A320 Neo is equipped with more powerful jets, which allow him a fuel economy of 15%. That is not meant as a blanket defense of Boeing. Ethiopian Airline crash was preceded by the Lion Air fatal flight of the Boeing 737 MAX in October, 2018. The choice to use the captain’s side was strange because the instrument failure was clearly on that side, but the autopilot gracefully agreed to help. There, 2,500 flight attendants live in dormitories and batches of pilot recruits sit through up to six months of initial ground school before moving on to four to five months of flight training in Cessna 172s, followed by guaranteed jobs as co-pilots for the Lion Air Group. 1 culprit is the angle-of-attack vane. But for foreign governments that had become the self-anointed guardians of their citizens worldwide, the exposure was similar to that of the airplane manufacturers, though less consequential: Inevitably, accidents would continue to occur in Indonesia, and foreigners would die, and it would be hard for their officials to duck accountability unless the officials had registered concern in advance. That was it. Eight days after the accident, Boeing issued a worldwide bulletin for 737 Max pilots in which it continued to avoid mention of the MCAS but emphasized longstanding procedures provided in the “Runaway Stabilizer Non Normal Checklist (NNC).” The company was willing to leave its communications to that. But instead the latest technology has been used. He was taken down by a de-icing failure over high terrain inbound to Los Angeles, and none of us were surprised. Trim refers to an aerodynamic condition related to pitch — the nose-up-or-down attitude of an airplane in flight. They just checked the fault messages and cleared them and called it a day. If an inattentive crew allows a runaway trim to drop the nose too far below the horizon and the crew reacts with full up elevator, the nose will rise as certification standards require, but it may remain below the horizon for a period sufficient to allow the airspeed to continue to increase and bust right through the maximum speed, at which point recovery becomes impossible if you don’t lay into the electric trim. The number was high because the defects were not fixed. On March 10, 2019, a Boeing 737 Max crashed on the ground 10 minutes after takeoff in Bishoftu, Ethiopia. Immediately after liftoff, the captain’s airspeed indication failed, airspeed-disagreement and altitude-disagreement warnings appeared on his flight display and his stick shaker began to rattle the controls in warning of an imminent stall. The Indonesian authorities lacked the political will to rein that in. Rather, it was an entirely new characteristic that caused regulatory concern. And so on their Sim Ride No. The pattern repeated and would have kept repeating to the limits of nose-down trim, an extreme imbalance never approached in regular flight. Speaking of the Lion Air mechanics, he said: “They’re full of shit. It began flying in December 2003. But the truth is that the MCAS is easy to counter — just flip the famous switches to kill it. As investigators scramble to determine what caused a Boeing 737-800 to crash early Wednesday, the plane’s maker is grappling with another catastrophe as it continues to reel from its 737 Max … There were many contributing factors, mostly among the budget carriers but affecting Garuda as well: an onrush of inexperienced pilots willing to work long hours for low pay; discouragement among mechanics, ramp workers and dispatchers; pressure to keep airplanes flying despite component failures that should have grounded them; the falsification of cargo and passenger manifests; dual maintenance and flight logs; and corruption permeating the entire system, including even air-traffic control. The system automatically applies double-speed impulses of nose-down trim, but only under circumstances so narrow that no regular airline pilot will ever experience its activation — unless a sensor fails. Since then, a judicial inquiry has been opened to determine Boeing’s responsibilities. The trim switches are off. The captain answered, “Stand by.” Over the next two minutes, while the co-pilot fought to maintain control of the airplane, the captain went wandering through the checklists trying to figure out what to do. It was the best move of the morning and seems to have been based on a rule of thumb that if you do something in a cockpit and are rewarded by some unwanted event, do not waste time wondering what the connection is — undo that something you just did. They suspected they found the problem in Bali. The flight was assigned a standard departure route over the Java Sea. Mohammod flipped the switches. But there was a big problem: The pilots had still not throttled back from takeoff thrust, and the airplane now in level flight was going extremely fast, at least 25 knots faster than the maximum operating speed of 340 knots, and was rapidly accelerating into realms beyond the flight-testing range. But then there was a change. Equally unfortunate was the acquiescence of Suneja and Harvino, who dutifully complied with every air-traffic control request. Investigators later criticized the co-pilot for poor teamwork, specifically for not taking control of the airplane, but short of clubbing the captain into submission, there wasn’t much he could do. Retrieved October 29, 2018. In other more positive ways, the 737 and A320 were closely matched: same payloads and performance, same operating costs, same potential for profit-making. But his efforts led to the smartest airplane ever built, a single-aisle medium-range “fly-by-wire” masterpiece called the A320 that entered the global market in 1988, led the way to all other Airbus models since and has been locked into a seesaw battle with Boeing’s relatively conventional 737s for the past 30 years. The surprise was that the investigator did not accept it. Michael Tewelde/Agence France-Press/Getty Images. No-frills newcomers who cared nothing for prestige rushed in to compete for the business of bargain-conscious passengers and undercut the flagship national airline, Garuda, in a booming domestic market that started growing at a rate second only to China’s. Aerodynamic stalls are central to the Boeing 737 saga, so let’s explore them briefly now. In the 737, it is a rattling “stick shaker” that vibrates the control columns and is meant as an urgent warning to lower the nose. But something slightly different occurred. (Former Adam Air employees could not be reached for comment.) Suneja answered, “Five thou.”. He leased a decrepit Boeing 737, and in June 2000, Lion Air started operations, offering low-cost flights on two of Indonesia’s most popular routes. On the corporate level, the company is the worst sort of player — a corrosive agent that spreads money around Washington, pushes exotic weapons on Congress, toys with nuclear annihilation, sells all sorts of lesser instruments of death to oppressive regimes around the world and dangerously distorts American society in the ways that President Dwight D. Eisenhower warned against in his prescient 1961 farewell address. Relatives of Yared Getachew, a 29-year-old pilot who was the captain of Ethiopian Airlines Flight 302, at the crash site in March. But when the industry was deregulated shortly afterward, Kirana could not be denied. Finally the ghost in the jump seat intervened. Goglia said: “They say they flushed the pitot-static in an 800-hour airplane? A widespread culture of corruption lay at the core, but that was beyond anyone’s ability to reform. Period.” I asked about China specifically. In broad daylight, these pilots couldn’t decipher a variant of a simple runaway trim, and they ended up flying too fast at low altitude, neglecting to throttle back and leading their passengers over an aerodynamic edge into oblivion. Dennis Jones, a retired N.T.S.B. The airplane rolled down the runway at 8:38 a.m. with a standard takeoff flap setting and Getachew at the controls. Those indications are driven by a combination of sensors on the surface of the airplane. That much can be discerned by a close study of the flight data that have been parsed out, as well as from glimpses into the cockpit provided by certain summaries of the audio recordings. On the coming run, it would be his turn to do the flying. The controller did not provide a holding point but asked about the nature of the problem. Bhavye Suneja and his co-pilot, First Officer Harvino — arrived at the airport before dawn to prepare for the flight. The Max’s stall characteristics, which indirectly bear on the accidents, have been widely reported as being an unusual tendency to pitch up when the airplane is flown at high angles of attack, in realms beyond the stick shaker where airline pilots never go. It buried itself into a 30-foot-deep crater in farmland about 32 miles southeast of the airport. He approached the Transportation Ministry to inquire about licensing the airline and was laughed off and advised to set up a condom factory instead. But for what it’s worth, if asked at the time, I would have agreed with the company. He told me that a senior official from Ethiopian Airlines asked him to come to his office for a private talk. To point fingers at important clients would risk alienating not only those airlines but others who have been conditioned to buy its airplanes, no matter how incompetent their pilots may be. They can fly the airplanes!” Also, in some owners’ view, the semiannual simulator training is wasteful because the simulators are costly to run and maintain, and while the pilots are playing around in them (while collecting their pay), they are not out producing revenue. When I mentioned this to Carbaugh, he said: “I think the information will never get released. What sent an expensive new Boeing into the ocean on that beautiful, bright morning in Indonesia? It should have been obvious to air-traffic control that the pilots were struggling, but maybe because they had not declared an emergency, the controller continued to treat them routinely, repeatedly instructing them to maintain their chosen altitude of 5,000 feet and issuing multiple new compass headings to steer. It is more fuel-efficient than the 737… The mood in the cockpit was calm. Under stress, his performance had become abysmal. Last week, American flew the first Boeing 737 MAX with paying passengers in almost two years. Furthermore, the airplane provides an alert when airspeed or altitude indications disagree. The logic of those conditions is clear, but not worth the digression here. I have been unable to speak to Kirana despite multiple attempts to reach him, so I do not know if he cares about these distinctions. As for Airbus, Boeing had guaranteed that no additional training would have been necessary, other than two hours of tablet training. He did not know their altitude, he told the controller, because all their altitude indicators were showing different values. No one complained. They had been briefed on the MCAS system and knew the basics: that it provided repetitive 10-second bursts of nose-down trim, that it could be held at bay through vigorous use of the control yoke thumb switches to counter-trim, that it would not activate if the flaps were down or the autopilot was on, that it could be deactivated by shutting off the electric trim through use of the now-famous cutout switches on the center pedestal and that afterward the airplane could be trimmed using the manual trim wheel. It made sense in an era when airplanes were vulnerable to weather and prone to failures and pilots intervened regularly to keep airplanes from crashing. That same day, the Indonesians followed suit, as did the rest of the world. While flying through an area of bad weather at 35,000 feet, the crew noticed discrepancies between the navigational systems; while fiddling with a solution, they switched off the autopilot unintentionally and drifted into a bank that turned into an uncontrolled spiral dive, during which the descent rate exceeded 50,000 feet per minute and the airplane approached the speed of sound before the captain pulled the wings off in flight. The 737 Max was grounded March 13, three days after the crash in Ethiopia, costing Boeing $9.2 billion and counting. The paradox is that the failures of the 737 Max were really the product of an incredible success: a decades-long transformation of the whole business of flying, in which airplanes became so automated and accidents so rare that a cheap air-travel boom was able to take root around the world. One day, he went back to Jakarta and, with the help of family money, started an airline. The Bali captain was enough of an airman to realize that he was dealing with an information failure only — not an actual stall. “I suspect that the pilot wrote what you see in the log, and he verbally told maintenance that, ‘Hey, the trim was running down, and we had to use the stabilizer cutout switches, and we flew the airplane back manually,’ ” he said. The second was that it lasted about only 10 seconds, then stopped for five seconds, then started again. A few seconds later, air-traffic control cleared the flight to 34,000 feet. It is a forlorn hope, but you might wish that investigators like those in Indonesia and Ethiopia would someday have the self-confidence to pursue full and transparent investigations and release all the raw data associated with the accidents. The airplane had just departed from Beirut. That’s why the responsibility of the aircraft manufacturer seems to be engaged. But if the Max was to avoid designation as an entirely new model, the control-force problem needed to be addressed. One of his headings steered the flight away from conflicting traffic, when instead it was the traffic that should have been steered away from the flight. The tuition is $60,000. He said: “They didn’t finish, whatever the log says. You need to get them to change the findings. Only recently and reluctantly have the Indonesians acknowledged the third pilot’s presence, though, as it happened, he played an important role. Angle-of-attack vanes are exposed to the winds and are vulnerable to impact, ice and wear. The request was unusual, and it went unexplained. There were two other conditions for MCAS activation: the wing flaps had to be up and the autopilot off. I spoke to a heavy-jet pilot with global experience who said that had he been flying that 737, he would have scratched for all the altitude he could get — probably 20,000 feet — and after the first few vectors would have ignored air-traffic control and “pointed the damned airplane toward Nevada.” He meant he would have pared down to the essentials and sought to buy time. That’s not what happened. The best pilots do not sit in cockpits so much as strap them on. Although the results of both investigations pointed out to one mutual link related to the faulty MCAS system, the rest of the factors contrasted. - CLICK HERE, The 12 world’s fastest private jets, almost mach 1, Why (almost) only business jets have their engines behind, Cheap private flights, present and future opportunities, Private jets avoid Covid-related problems of airliners, The cheapest and best-selling private jet in the world, ZeroAvia, private and regional hydrogen aircraft, Treating Covid on a jet or at home, avoiding hospitalization. Trim is routinely adjusted in flight. Australian and French investigators have been involved, too. Bernard Ziegler, the founding father of the Airbus fly-by-wire designs, once told me that the company ran tests and found that 90 percent of airline pilots believed that they could extract maximum performance from an airplane during emergency pull-ups away from the ground, but that only 10 percent actually could. Furthermore, when you have a maintenance log that shows the replacement of an angle-of-attack sensor two days before and then you have an associated stick shaker rattling away while the other stick shaker remains quiet, you do not need an idiot light to tell you what is going on. This was done for reasons of safety. It is hard to imagine what the controller was thinking. Since then, he had gained another 207 hours. When I mentioned this to Larry Rockliff, a former Canadian military and Airbus test pilot, he shrugged me off. The change was a result of an error somewhere in the bowels of Boeing. On previous models, the light had come as standard equipment. The record shows four attempts in rapid succession to engage the autopilot, all of which were refused because autopilots are not recovery devices and will not engage if they sense pressures on the control column — meaning that an airplane is being flown out of trim. You might think that the 737 would have grown increasingly disadvantaged given the New World qualities of the A320, but in my estimation pilots have managed to crash the 320 at about the same rate, largely because of confusion over automation. It is hard to believe that any pilot entering that cockpit could have been so sloppy. ^ "Lion Air Boeing 737 crash: Plane crashes, flight victims recovered". The onslaught has included congressional hearings, federal investigations, calls for the criminal prosecution of Boeing executives, revelations by whistle-blowers, attacks in the news media, the exploitation of personal tragedy and the construction of a whole new economic sector built around perceptions of the company’s liability. That is a slight simplification, but good enough. What we had in the two downed airplanes was a textbook failure of airmanship. The airplane was now so far out of trim that Getachew had to hold his control column halfway back (meaning half up-elevator) to keep the nose from dropping. Sounding resigned, if not fatigued, he said, “Yeah, but that’s the way it goes.”. It is unfortunate that those who die in cockpits tend to take their passengers with them. the progress of engines has nevertheless had an unexpected effect: the aircraft, during takeoff, tends to climb too vertically. From 2003 to 2007, the Indonesian accident rate as measured by fatal flights per million departures had grown to be 15 times as high as the global average. Recently he made it clear that he also resented Boeing as being presumptuous and typically condescending. I left Lion City struck that Boeing has not reacted with greater urgency to the larger problems now faced. One of its 737s — an airplane that had been around the block for 18 years and was leased from Wells Fargo — was written up by pilots for recurring defects 154 times over the final three months of 2006. Harvino answered, “Flight-control problem.” He did not mention which kind, but before they die, pilots are rarely so descriptive. What Really Brought Down the Boeing 737 Max? After three MCAS impulses, the co-pilot said that his control column had grown so heavy that he could hardly hold the nose up. The request was surprising. He did not appear to care about the complaints that came in. Conversely, the slower an airplane flies, the greater the angle of attack needs to be. It remains unclear exactly what went wrong at Boeing — who decided what, and why — but a small collective breakdown had obviously occurred, and the F.A.A. They are known as trim cutout switches. were allowed to listen to recordings Important leads, meanwhile, are not being pursued, entire angles are being overlooked and the release of information to the public has been unusually restricted. Understanding the Boeing 737 Max accident cause will hopefully explain some of this mystery. repeated the same information in the form of an “Emergency Airworthiness Directive,” a regulatory mandate to change the airplane’s flight manual. It was a used part that had been provided by a shop in Miramar, Fla., and shipped to Lion Air one year before. The replacement vane put onto this airplane in Bali was older than the airplane itself. Its disregard of safety ran the gamut and resulted in the dispatch of shabby airplanes in the hands of beleaguered pilots. He was an off-duty pilot and, according to one Indonesian pilot I spoke to, a 737 Max captain for a Lion Air subsidiary. 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