An FAA Airworthiness Directive targeting certain Gulfstream Astra SPX, 1125 Westwind Astra and Gulfstream 100s was prompted by sponge rubber padding found between wheel well fuel lines and electrical harnesses to provide separation. The padding is not approved and may cause corrosion of the fuel lines. Uncorrected, it could cause corrosion damage and/or chafing resulting in fuel leakage, which could result in a wheel-well fire.
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.
International business aviation marketing and services company Action Aviation signed an exclusive distribution agreement at EBACE with AirGlide for Aviation Shield, a new nano-technology coating that claims fuel-burn savings of around 4 percent through drag reduction. AirGlide said the nano-particles in its coating fill microscopic gaps and crevices in the aircraft’s skin surface, reducing drag by up to 40 percent.
The Cessna 560XL is the focus of an Airworthiness Directive prompted by reports of wheel inserts becoming loose and damaging brake assemblies. The AD requires an inspection of the torque lug and surrounding components (wheel base, side rim, lock ring) for damage such as corrosion, cracks, dents, bent areas, damaged or missing paint or primer, or wear on the metal.
HighTech Finishing recently expanded its facility, adding 15 new tanks to allow the company to offering plating on plastic. “Many aviation manufacturers are employing new methods to decrease aircraft weight, and using plastic can be one of the options,” explained v-p of marketing Rick Niefield.
The FAA is proposing an airworthiness directive for the Bombardier CL-600-2B19 (CRJ) air-driven generator (ADG).
U.S. and European civil aviation authorities have issued new airworthiness directives (ADs) for the inspection and possible repair or replacement of the Sikorsky S-92A’s main gearbox. The updated ADs build on 2009 directives and mandate action on a new gearbox design that was supposed to solve the problem, at least temporarily.
Bell 206L-3, Abilene, Texas, March 29, 2009–The NTSB determined the fatigue crack in the trailing edge of a main rotor blade was caused by interconnected porosity and resulting corrosion resulting from an undetected manufacturing defect. During a post-flight inspection following a flight in turbulence, the pilot noted the crack in the blade.
The latest main gearbox (MGB) problem for the Sikorsky S-92A: foot-mount cracking that could lead to the complete separation of the MGB and subsequent loss of helicopter control.
The FAA has issued an airworthiness directive (AD 2009-15-03) for Bombardier Global Express BD-700-1A10s and BD-700-1A11s. According to the AD, a bolt that connects the power control unit (PCU) to the elevator surface was found fractured in the assembly during a scheduled maintenance inspection.