Federal Aviation Administration May 9, 2005 – Federal Register Recent Federal Regulation Documents
Results 1 - 8 of 8
Airworthiness Directives; Raytheon Model HS.125 Series 700A Airplanes, Model BAe.125 Series 800A Airplanes, and Model Hawker 800 and Hawker 800XP Airplanes
The FAA is revising an earlier proposed airworthiness directive (AD) for certain Raytheon Model HS.125 series 700A airplanes, BAe.125 Series 800A airplanes, and Model Hawker 800 and Hawker 800XP airplanes. The original NPRM would have required an inspection to determine the current rating of the circuit breakers of certain cockpit ventilation and avionics cooling system blowers; and replacing the circuit breakers and modifying the blower wiring, as applicable. The original NPRM was prompted by a report indicating that a blower motor seized up and gave off smoke. This action revises the original NPRM by clarifying the compliance time and removing a reporting requirement. We are proposing this supplemental NPRM to prevent smoke and fumes in the cockpit in the event that a blower motor seizes and overheats due to excessive current draw.
Airworthiness Directives; McDonnell Douglas Model DC-9-14, DC-9-15, and DC-9-15F Airplanes; and McDonnell Douglas Model DC-9-20, DC-9-30, DC-9-40, and DC-9-50 Series Airplanes
The FAA proposes to adopt a new airworthiness directive (AD) for all transport category airplanes listed above. This proposed AD would require repetitive inspections for cracks of the main landing gear (MLG) shock strut cylinder, and related investigative and corrective actions if necessary. This proposed AD is prompted by two reports of a collapsed MLG and a report of cracks in two MLG cylinders. We are proposing this AD to detect and correct fatigue cracks in the shock strut cylinder of the MLG, which could result in a collapsed MLG during takeoff or landing, and possible reduced structural integrity of the airplane.
Airworthiness Directives; Boeing Model 737-100, -200, and -200C Series Airplanes
The FAA proposes to adopt a new airworthiness directive (AD) for certain Boeing Model 737-100, -200, and -200C series airplanes. This proposed AD would require a one-time detailed inspection for cracking of the lugs of the inboard attach fittings of the wing leading edge slat tracks at slat numbers 2 and 5; prior or concurrent actions for certain airplanes; repetitive high-frequency eddy current (HFEC) inspections for cracking of the lug surfaces of those inboard attach fittings if necessary; and replacement of the attach fittings with new, improved fittings. This proposed AD is prompted by reports of damage to the lugs of certain inboard attach fittings of the leading edge slat tracks. We are proposing this AD to prevent a lifted slat, which, if the airplane performs any non-normal maneuver during takeoff or landing at very high angles of attack, could lead to the loss of the slat and reduced control of the airplane.
Airworthiness Directives; Bombardier Model CL600-1A11 (CL-600), Model CL-600-2A12 (CL-601), and Model CL-600-2B16 (CL-601-3A, CL-601-3R, and CL-604) Series Airplanes
The FAA proposes to adopt a new airworthiness directive (AD) for certain Bombardier Model CL600-1A11 (CL-600), Model CL-600-2A12 (CL-601), and Model CL-600-2B16 (CL-601-3A, CL-601-3R, and CL-604) series airplanes. This proposed AD would require operators to assign serial numbers or part numbers to certain landing gear parts; and to establish the number of landings on the parts, if necessary. This proposed AD also would require operators to revise the Airworthiness Limitations section of the Instructions for Continued Airworthiness to reflect the new life limits of the landing gear parts. This proposed AD is prompted by reports that landing gear parts that have safe-life limits but do not have serial numbers or part numbers can be removed from one landing gear and re-installed on another, making tracking difficult. We are proposing this AD to prevent life-limited landing gear parts from being used beyond their safe-life limits, which could lead to collapse of the landing gear.
Airworthiness Directives; BAE Systems (Operations) Limited (Jetstream) Model 4101 Airplanes
The FAA proposes to adopt a new airworthiness directive (AD) for all BAE Systems (Operations) Limited (Jetstream) Model 4101 airplanes. This proposed AD would require repetitive detailed and specialized inspections to detect fatigue damage in the fuselage, replacement of certain bolt assemblies, and corrective actions if necessary. This proposed AD is prompted by a review of primary airframe fatigue test results and Maintenance Steering Group 3 (MSG-3) analysis. We are proposing this AD to detect and correct fatigue damage of the fuselage, door, engine nacelle, empennage, and wing structures, which could result in reduced structural integrity of the airplane.
Airworthiness Directives; Agusta S.p.A. Model A119 Helicopters
This amendment adopts a new airworthiness directive (AD) for Agusta S.p.A. (Agusta) Model A119 helicopters that requires visually inspecting each main transmission support fitting (fitting) attachment bolt (bolt) for a fracture, a crack, or looseness, and verifying the torque on each fitting bolt. This amendment is prompted by two incidents of fatigue failure of the bolts that secure the transmission rear support fittings to the helicopter. The actions specified by this AD are intended to detect a fracture, a crack, or looseness of a fitting bolt, and prevent fatigue failure of a fitting bolt and subsequent loss of control of the helicopter.
Airworthiness Directives; Agusta S.p.A. Model A109E Helicopters
This amendment adopts a new airworthiness directive (AD) for Agusta S.p.A. (Agusta) Model A109E helicopters that requires visually inspecting each main transmission support fitting (fitting) attachment bolt (bolt) for a fracture, a crack, or looseness, and verifying the torque on each fitting bolt. This amendment is prompted by two incidents of fatigue failure of the bolts that secure the transmission rear support fittings to the helicopter. The actions specified by this AD are intended to detect a fracture, a crack, or looseness of a fitting bolt, and prevent fatigue failure of a fitting bolt and subsequent loss of control of the helicopter.
Airworthiness Directives; Eurocopter France Model EC120 Helicopters
This amendment adopts a new airworthiness directive (AD) for Eurocopter France (Eurocopter) Model EC120 helicopters that requires inspecting the tail rotor drive shaft (drive shaft) damper half-clamps (half-clamps) to determine if they are centered on the friction ring, and if not correctly positioned, centering the half-clamps on the friction ring. This amendment is prompted by the discovery of half- clamps that were incorrectly positioned. The actions specified by this AD are intended to detect incorrect positioning of the drive shaft half-clamps, and to prevent interference of the half-clamps with the drive shaft, which could result in scoring on the drive shaft, failure of the drive shaft, and subsequent loss of control of the helicopter.
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