Airworthiness Directive

July 25, 2012 - 1:53pm

The FAA is proposing to adopt a new airworthiness directive for all Eurocopter BK117C2 helicopters with certain generator control units (GCU) installed. The AD is prompted by reports of internal short circuits in certain GCUs.

July 18, 2012 - 3:20pm

Software company SkyBooks is now offering its version 4.7 aircraft operations management system in two product lines, for flight operations or maintenance management. Both versions are available as either analyst- or user-managed.

“Segmentation in two functional areas and bundling core offerings is a result of customer requests and new feature enhancements,” said CEO John Willis.

July 4, 2012 - 2:05pm

The FAA proposes an airworthiness directive for the Cessna 750 Citation X prompted by reports of direct current (DC) generator overvoltage events. The generator control unit (GCU) overvoltage protection circuit can become damaged and allow high voltage to pass through to the airplane systems and electrical components, which, if not corrected, could result in smoke in the cockpit and loss of avionics and electrical systems.

July 2, 2012 - 3:10am

The EASA and FAA have issued new emergency Airworthiness Directives (ADs) for the Eurocopter EC135 after detection of cracks on the lower hub-shaft flange of two more of the light twins. The ADs require repetitive preflight inspections.

June 27, 2012 - 6:00pm

The FAA is proposing an airworthiness directive for variants of the Bombardier Challenger 600 and 601. There have been several reported incidents of jamming/malfunctioning of the left-hand engine thrust control mechanism on the affected airplanes.

June 20, 2012 - 12:08pm

The FAA proposed an Airworthiness Directive for the Eurocopter SA365N, SA365N1, AS365N2, AS365N3, EC155B, EC155B1, SA365C, SA365C1, SA365C2 and SA366G1. It is prompted by reports of corrosion on the main gearbox (MGB) casing lower area between the two servo-control anchor-fitting attachment ribs. The proposed actions are to detect corrosion on the MGB casing, which could lead to a crack, failure of the MGB and subsequent loss of control. The FAA is accepting comments until August 17.

June 13, 2012 - 10:23am

The FAA is proposing an airworthiness directive for the Bell Helicopter 412, 412EP and 412CF. It is the result of a reported failure of a collective lever. The proposed actions are intended to detect a crack in the collective lever, which could lead to failure of the collective lever and subsequent loss of control of the helicopter. The FAA is taking comments on the proposed AD until July 23.

June 13, 2012 - 10:20am

The FAA has issued an airworthiness directive for all Honeywell ALF502L-2C; ALF502R-3; ALF502R-3A; ALF502R-5; LF507-1F; and LF507-1H turbofans. The AD was prompted by two reports of engines experiencing uncontained release of low-pressure (LP) turbine blades. The AD requires operational checks of the engine overspeed trip system to prevent LP turbine overspeed, which could lead to uncontained release of the LP turbine blades and damage to the airplane.

June 6, 2012 - 2:31pm

The Bell 427 is the subject of a new FAA airworthiness directive requiring replacement of certain tailboom attachment hardware and at certain intervals determining the torque of the attachment hardware. It was prompted by a review of the tailboom attachment installation that revealed the torque value of the bolts specified in the maintenance manual, and applied during manufacturing, was incorrect and exceeded the recommended torque range.

May 30, 2012 - 1:47pm

Avtrak has announced a new reporting feature for its GlobalNet maintenance tracking system designed to meet Mexican DGAC compliance requirements. Similar to most documentation in aviation, the GlobalNet system is in English; however, Mexico’s DGAC requires the format of an operator’s airworthiness directive and service bulletin reports to be in Spanish.

 
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