Tuesday, February 23, 2021

Preliminary results, Boeing 777 engine failed, 2 broken propellers, linked to “metal fatigue”.


Preliminary exam results – February 23, CNN reports on the progress of the aircraft. Boeing 777 Of the airline United Airlines Flight 328 headed from Colorado to Hawaii. But the right engine fire in midair And the engine casing fell onto a house in Bloomfield, Denver, on Saturday, Feb. 20, but fortunately, the pilot was able to safely land the plane at Denver Airport with no injuries.

Investigation of engine failure, which belong to Pratt and Whitney (Pratt & Whitney), an American aerospace manufacturer. Pw 4000 It may take more than 1 year, but the authorities have already seen a clearer picture about the accident.

The investigators said The engine failed for several minutes until the engine parts fell more than 1.6 kilometers below the accident. United Airlines to suspend all Boeing aircraft powered by the MW 4000 engine.

A preliminary examination based on information of National Transportation Safety Board (NTSB) indicates that engine damage corresponds to Metal fatigue (metal fatigue) or the fact that the metal is exposed to heavy loads over and over again The US federal regulators have to perform another engine inspection.

Either National Aviation Administration (FAA) and the NTSB are investigating the accident.

Details of the flight accident 328

Record air traffic sounds from 328 flight pilots transmitting. Mayday (Mayday) stated that “United 238 hard, Mayday, Mayday… out of Denver. The plane recently experienced an engine failure. Must turn immediately “

NTSB photo

The investigators said The PW 4000 engine had 22 propellers, of which one was found stuck inside the jet engine’s retaining ring. Another propeller was found on a football stadium in Bloomfield, Colorado, with one of the propellers thrown from the wheel hub of the propeller in the plane’s right engine, then may strike. With another propeller broken in the middle

Robert Samwalt The NTSB president said the damage was in line with The “metal fatigue” of the fuselage has been damaged by non-critical components designed to make the aircraft more aerodynamic.

Sam Walt said: The engine in question is removed from the aircraft for further inspection. The propellers will be examined on Tuesday. After being transported by a private jet to Pratt & Whitney’s laboratory. Researchers believe it can determine how long a propeller is damaged before it becomes unusable.

Debris from an airplane fell in a soccer field in Broomfield, Colorado Saturday.

Community members whose homes were damaged by the crashed plane parts will be compensated by United Airlines, which may take some time. Rocky Mountain Insurance Information Association The Rocky Mountain Insurance Information Association states that most standard insurance plans should cover “Objects that fall from the sky” as well.

Related news:

Suspended all Boeing 777s in the wake of the aftershock “Fire – Broken Pieces” in the air





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