December 4, 2022

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Amid problems with the 787 sketch, Boeing is seeking an exemption from compliance with the rule

Photo: AviationLine

For years, American manufacturer Boeing has been facing challenges over the design of its 787 Dreamliner aircraft, and to get around this once and for all, it is seeking exemptions from the US Federal Aviation Administration (FAA) on certain regulations. . The manufacturer claims that the problem can be solved with a new paint system, but it “Several legal provisions are delaying the completion of this project.”An essay report by Reuters🇧🇷

The issue is not new to Boeing and was formally reported in 2020 when the US Department of Transportation (DOT) issued a warning to operators of the model. At that time, it was reported as followsSome examples of the Model 787 are prone to paint adhesion failure due to ultraviolet (UV) damage.

Then the FAA document suggested a short-term solution “Using Duct Tape on Affected Areas”. After this, many Dreamliners were seen flying with taped wing surfaces to hide the scales. Another suggested solution is to repaint the wing surfaces and horizontal stabilizer with shorter time intervals than standard.

However, Boeing suggests another solution because it does not agree with the use of tape, which can give passengers a feeling of insecurity and on the other hand, it understands that repeated painting can wear off. Material on wings. The manufacturer, then, says that there will be a solution “Incorporating a black topcoat UV blocking layer between the primer and the white topcoat increases the total allowable thickness of the outer topcoat.”

And continues: “The thickness of the outer coating can affect the lightning protection of the fuel tank and since the black color has a higher UV absorption capacity compared to the existing paint scheme, this change should be evaluated for its impact on preventing lightning damage. fuel tank”🇧🇷 This is where the exemption request comes in. “Therefore, a waiver is required to allow timely incorporation of this fleet maintenance solution to reduce the burden on the air fleet.”🇧🇷

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Boeing’s order could be a sensitive one for the FAA, which must tip the scales to ensure passengers get on board safely. Opening an exception without examining the safety of the proposed solution may create future liabilities for the regulator. Perhaps that is why the problem has not been solved yet.