Pilot: what happens in an emergency like United 238 (Opinion)

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    What exactly does holocaust and unconfirmed mean? A catastrophic failure is an event that occurs as a result of pieces of aircraft traveling at high speed through a jet engine, destroying it in the process. In the United 328 situation, it appears that the loose fan blade in front of the engine may be the culprit based on preliminary findings.

    Conversely, I once experienced a benign engine failure on a B-767 at cruise altitude. Instead of relaxing the pieces, the engine leaves as a result of only one sensor, which accidentally detects a lack of fuel pressure. Other than the fact that we had to work on a leftover engine, a scenario that we practiced in every recurring training session, the whole situation was a non-event – until I interrupted to destroy my breakfast omelet Does not consider

    On another occasion, before takingoff at relatively low speeds, I experienced a catastrophic failure when a bearing inside one of the three engines of a B-727 disassembled and separated the individual spinning turbine blades. Decided, as it turns backwards. Of engine. When we realized that the airplane was not moving at a normal rate, we canceled the takeoff.

    An unrelated failure occurs when internal pieces break through the engine, potentially splattering on other parts of the airplane. This happened in April 2018 when a southwestern B-737 engine threw pieces off the torso, causing a cabin malfunction and passenger death. Manufacturers must certify their product through a rigorous testing process to prove that an internal failure is contained within the engine, so the scenario that occurred on Southwest 1380 and Combined 328 should not have happened. Engine cauling is the last line of defense in confining pieces.

    But what was happening in the cockpit of United 328? Given the engine’s external condition, and the fact that at least one fan blade appears to be missing, the airplane most likely was subjected to a clear blow – one that the crew and passengers felt. Once the cowling was completely separated from the engine, normal aerodynamic flow was interrupted, causing the airplane to buffet.

    Engine instrumentation on one of the cockpit screens may have indicated a rapid decrease in RPM parameters. Remember, the cockpit is far ahead for the crew to visually see the crew, so they will only be aware of the actual situation through the flight attendant report.

    An engine fail alert would illuminate on the display. After a brief moment to identify the problem, if the captain wasn’t already flying, he would have simply said, “I’ve got the airplane,” and then called for the Engine Fire / Critical Damage Checklist, which was called Electronic. Is selected as follows. Displayed on another cockpit screen.

    Copilot will read the checklist and complete the items indicated. Items include engine-generated electrical systems, hydraulic valves, and shutdown of engine-bleed air systems. While the checklist continues, either the captain or the copilot may have declared “mayday” with air traffic control.

    The fire that appears on the engine in the video may have triggered the electronic bell in the cockpit, assuming the heat activated the fire loop sensor. The B-777 has the ability to circulate two engines, one at a time, into the engine. That being said, airflow around the engine is the best source of an engine fire extinguisher, or at least to prevent it from spreading.

    Most complete with emergency checkers, general descent and landing checkers begin. Once advised by a pilot according to the circumstances, flight attendants begin their own checklist to prepare the cabin for possible ground clearance associated with slide deployment, which fortunately did not happen. When the action breaks, usually the captain will announce the PA to the passengers.

    Although airframe buffering may be disruptive and inaccessible to normal flight control inputs, it is a phenomenon that is continuously practiced in airline pilot simulators. Given the result, the cockpit crew and cabin crew deserve a round of applause from both.

    Unfortunately, the Pratt & Whitney PW4000 engine driving the airplane will require some serious investigation. This is not the first case of an unrelated engine failure with the engine that Japan and United Airlines both stopped using for now. The NTSB is currently investigating the latest incident, and Boeing recommends suspending 777s using the engine. In a statement released on Sunday, Pratt & Whitney said they had sent a team to work with investigators.
    But please do not condemn all B-777s. Many of them do not have PW4000 engines installed – and United is grounding those. After nine years of flying airplanes, I would not hesitate to go on one.


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