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airworthy
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3.079 documents for airworthy
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We propose to supersede an existing airworthiness directive (AD) for MD Helicopters, Inc. (MDHI) Model MD900 helicopters. The existing AD requires a visual inspection, and if necessary, an eddy current inspection of the main rotor lower hub assembly (lower hub) for a crack. If a crack exists, the AD requires replacing the lower hub with an airworthy lower hub before further flight. Because that AD was immediately effective, we did not include in its requirements certain long-term actions that did not necessitate adoption prior to public comment. This proposed AD would require those long-term actions. This proposed AD would require the same inspections as the existing AD but would also require recurring inspections and replacing the lower hub with an airworthy lower hub. We are proposing...
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We propose to adopt a new airworthiness directive (AD) for all Eurocopter France (EC) Model SA-365N, SA-365N1, SA-366G1, AS-365N2, AS 365 N3, EC 155B, and EC155B1 helicopters. This proposed AD was prompted by the discovery of a cracked main rotor mast nut. This condition, if not corrected, could lead to complete failure of the mast nut, resulting in failure of the rotor mast and loss of control of the helicopter. This proposed AD would require replacing the main rotor mast nut with an airworthy main rotor mast nut. We are proposing this AD to prevent failure of the main rotor mast and subsequent loss of control of the helicopter.
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We are adopting a new airworthiness directive (AD) for Agusta S.p.A. (Agusta) Model AB412 helicopters with certain tail rotor blades (blades) installed. This AD requires, before further flight, removing and replacing each affected blade with an airworthy blade. This AD is prompted by incidents where a blade tip weight separated from a blade in flight on other model helicopters with common part-numbered blades. It has been determined that this unsafe condition may also exist on the specified Agusta model helicopters. The actions specified in this AD are intended to prevent loss of the blade tip weight, loss of a blade, and subsequent loss of control of the helicopter.
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News & analysis
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We propose to adopt a new airworthiness directive (AD) for Agusta S.p.A. (Agusta) Model AB139 and AW139 helicopters with a certain generator control unit (GCU). This proposed AD was prompted by laboratory tests which revealed a potential fault in the overvoltage protection on a certain part-numbered GCU. This proposed AD would require replacing each affected GCU with an airworthy GCU. In addition, any affected GCU is not approved for installation on any helicopter. We are proposing this AD to prevent failure of the overvoltage protection of the GCU, degraded performance of the electrical power generation and distribution systems, a fire, and subsequent loss of control of the helicopter.
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BLAGNAC, France - Among the hordes of spectators watching the world's largest passenger plane take flight was one holding a banner that read: "Fly Baby, Fly. And, fly it did. The question now is: Will it sell?
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LEWISTON -- Museum L-A will offer a rare chance to see the Lockheed "Super Star" reconstruction project with a behind-the- scenes tour on Saturday, Oct. 15. The tour begins at Museum L-A at 9 a.m. for a brief bus ride to the Lufthansa site at the Auburn- Lewiston Airport. The bus will return to Museum L-A around noontime. Lufthansa's nonprofit foundation purchased three rare Lockheed L- 1649A Starliner aircraft in a private sale in Auburn and is overseeing the restoration of one of them. The "Super Star" was the culmination of propeller driven transport aircraft. Lufthansa Technik began the challenging work in 2008 to restore a historic Lufthansa aircraft to airworthy condition.
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We propose to adopt a new airworthiness directive (AD) for Eurocopter Deutschland GmbH Model BO-105A, BO-105C, BO-105LS A-1, BO- 105LS A-3, and BO-105S helicopters. This proposed AD would require inspecting certain main rotor blades for debonding of the erosion protective shell. If the erosion protective shell is debonded, you would be required to replace the main rotor blade with an airworthy main rotor blade. This proposed AD is prompted by the results of an inspection on a BO-105 helicopter where debonding was discovered on a main rotor blade erosion protective shell, and it was determined that the debonding was due to incorrect installation of the erosion protective shell. Subsequently, an incident occurred where a BO-105 helicopter lost its main rotor blade erosion protective shell...
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Shanghai's environmental watchdog ordered two factories in its suburbs to halt production pending an investigation into the source of lead poisoning among children in a nearby village. The Shanghai Environmental Protection Bureau said in a notice on its website Friday that it was studying lead emissions from the two factories, one of which is a large lead-acid battery plant run by U.S.-based Johnson Controls. The Pudong district government, where the cases were found, issued a statement saying it believed the Johnson Controls factory was the main source of lead emissions in the area. Milwaukee, Wisconsin-based Johnson Controls said it was taking residents' concerns about lead exposure very seriously and cooperating with the authorities, but that it had no reason to believe its battery f...
