That is much like flying experimental planes over crowded cities to test their airworthiness.
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The decision to restore the jets' airworthiness certificate rests with the French and British governments.
The components have already been developed and are currently going through the airworthiness qualification and certification process.
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It has looked at the airworthiness of the Nimrod MR2 fleet since its introduction into service in 1979.
Three of the planes were flown while not in compliance with FAA rules known as Airworthiness Directives, or ADs.
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This is analogous to authorizing the Federal Aeronautics Administration to certify the design of airplanes- not just certifying their airworthiness.
The Air Force was asked to stand by for possible mercy flights, but its planes are old and of dubious airworthiness.
The Federal Aviation Administration's Airworthiness Directive for Boeing's 787-8 was posted online Thursday and goes into effect upon publication Friday in the Federal Register.
"The FAA's publication of the Airworthiness Directive is an important step forward in returning the 787 fleet to flight status, " Birtel said in an e-mail.
Its role is to ensure that military airworthiness regulations are met.
The passengers that perished in the fire "would have had improved survival prospects if the strengths of their seats had been to the latest airworthiness requirements".
The AAIB said the European Aviation Safety Agency (EASA) and the manufacturer are urgently reviewing the effectiveness and scope of an airworthiness directive previously issued for this helicopter type.
Arun Mishra, India's director general of civil aviation, said only two of the 17 repossessed aircraft have received airworthiness certificates, which allow them to be flown out of the country.
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The authority added that it had alerted the international aviation community of its airworthiness directive, so that other authorities could take parallel action to cover the fleets operating in their countries.
In January, the FAA issued an airworthiness directive ordering airlines to provide flight manuals that outline procedures for pilots to regain control of a 737 that goes into a sudden turn or roll.
He added that aviation regulators will have to put the 787 through another airworthiness certification process, which itself could become a complicated and lengthy process depending on the final cause of the problem.
Mr Ainsworth said the MoD had already implemented measures to improve safety and airworthiness of the Nimrod fleet, insisting the department had not been "idle" while Mr Haddon-Cave's review was being carried out.
The fear is that any such move could end up being a lengthy one, depending on how serious the problem is, and may also require the 787 to go through a fresh airworthiness certification process.
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When the FAA issues an airworthiness directive, it also alerts the international aviation community to the action so other civil aviation authorities can take parallel action to cover the fleets operating in their own countries.
Foremost among the recommendations: the safety board said all of the unlimited class aircraft like the P-51 Mustang should be made to demonstrate their airworthiness at racing speeds before participating in a public air race.
As a result of an in-flight, Boeing 787 battery incident earlier today in Japan, the FAA will issue an emergency airworthiness directive (AD) to address a potential battery fire risk in the 787 and require operators to temporarily cease operations.
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Given the tremendous investment in developing this aircraft which is so critical to their future business, the state-of-art upgrades to standard design which enhance both economy and reliability, and the intensive ongoing reviews to ensure complete airworthiness, the traveling public has every reason to have confidence that their flight security will be well protected.
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Not that Boeing is publicly jumping on any scapegoats to wholly blame for the worldwide grounding of its 787 Dreamliners after the Federal Aviation Agency ( FAA ) issued an emergency airworthiness direction (AD) in response to a battery fire that forced an All Nippon Airways plane to make an emergency landing in Japan on January 16.
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