India’s civil aviation authority, the DGCA, is considering grounding all civil Hindustan Aeronautics Limited (HAL) Dhruv light twin helicopters until the airframe is modified around the intermediate gearbox (IGB) in the tailfin. In some helicopters, “Cracks were observed on the rib bottom of the IGB and the associated area of the fin torsion box assembly,” according to a recently proposed Airworthiness Directive.
The FAA issued an Airworthiness Directive today for the Eclipse 500 that, as of March 21, would limit its maximum operating altitude to 30,000 feet.
The FAA issued an emergency Airworthiness Directive (AD)-2011-01-53 on December 20 to owners and operators of the Piaggio Avanti twin turboprop. The AD supersedes AD 2011-01-51, issued December 18.
A proposed FAA Airworthiness Directive targets the Embraer Phenom 100’s angle-of-attack (AOA) system. The FAA believes the accumulation of moisture between the AOA vane base assembly and the stationary ring of the sensor’s body can freeze under certain conditions.
United Airlines says it expects “minimal disruption” today resulting from its grounding of its 96 Boeing 757s after a check of maintenance records showed that the airline did not fully comply with a 2004 FAA Airworthiness Directive. A United spokesman told AIN today that the groundings resulted in about 15 flight cancellations, mainly last night.
The FAA has issued a proposed Airworthiness Directive on Aviation Communication & Surveillance Systems (ACSS) Tcas units, which will require operators to upgrade their Tcas with new software to comply with an ACSS service bulletin that the company published following an issue found during flight test
The FAA issued an emergency Airworthiness Directive (AD)—2011-01-53—on December 20 to owners and operators of the Piaggio Avanti twin turboprop. The AD supersedes AD 2011-01-51, issued December 18.
The FAA has finalized a rule addressing more than 4,000 U.S.-registered aging commercial aircraft with a takeoff weight of 75,000 pounds or more, certified after 1957 and operated under FAR Parts 121 or 129.
Under new final rules issued by the FAA, all transport-category (Part 25) aircraft certified henceforth will have to meet requirements “to prevent catastrophic failure due to widespread fatigue damage throughout the operational life.” The rule also applies to existing Part 25 aircraft operated under Part 121 and 129 regulations with an mtow of more than 75,000 pounds.
The FAA has issued a final rule for an Airworthiness Directive for the Embraer Phenom 100 S/N 50000005 through 50000118, 50000120, 50000122 through 50000126, 50000128, and 50000131, certified in any category. The AD says it is prompted by failures of the flow control shutoff valve in the closed position.