Federal Aviation Administration February 1, 2005 – Federal Register Recent Federal Regulation Documents
Results 1 - 8 of 8
Airworthiness Directives; Aerospatiale Model ATR42-200, -300, and -320 Series Airplanes
The FAA proposes to adopt a new airworthiness directive (AD) for certain Aerospatiale Model ATR42-200, -300, and -320 series airplanes. This proposed AD would require doing repetitive inspections of the upper arms of the MLG side braces for missing or inadequately bonded identification plates; replacing the upper arm if necessary; and replacing the side brace assembly with a modified part. This proposed AD is prompted by an operator who reported experiencing an unlock warning for the MLG on the right side of the airplane. We are proposing this AD to prevent cracking of the upper arms of the side braces of the MLG, which could result in failure of the MLG during landing and possible damage to the airplane and injury to the flightcrew and passengers.
Airworthiness Directives; Bombardier Model DHC-8-102, -103, -106, -201, -202, -301, -311, and -315 Airplanes
The FAA proposes to adopt a new airworthiness directive (AD) for certain Bombardier Model DHC-8-102, -103, -106, -201, -202, -301, - 311, and -315 airplanes. The subject of this proposed AD is the pilot's static system. This proposed AD would require revising the airplane flight manual to include applicable procedures to follow when the flightcrew receives abnormal indications of airspeed, altitude, or vertical airspeed. This proposed AD would also require modifying the static system. This proposed AD is prompted by a report of a leak in the static pressure system, which could result in loss of the static systems and consequent erroneous data displayed on the pilot's flight instruments. We are proposing this AD to advise the flightcrew of applicable procedures in the event of abnormal indications of airspeed, altitude, or vertical airspeed; and to prevent leaks in the static system, which could result in the loss of critical flight information that could result in reduced controllability of the airplane or controlled flight into terrain.
Airworthiness Directives; Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-135 and -145 Series Airplanes
The FAA proposes to adopt a new airworthiness directive (AD) for certain EMBRAER Model EMB-135 and -145 series airplanes. This proposed AD would require repetitive detailed inspections for surface bruising of the main landing gear (MLG) trailing arms and integrity of the MLG pivot axle sealant, and corrective actions if necessary. This proposed AD would also provide for optional terminating action for the repetitive inspections. This proposed AD is prompted by a report of a fractured axle of the trailing arm of the MLG due to corrosion of the axle. We are proposing this AD to prevent a broken trailing arm and consequent failure of the MLG, which could lead to loss of control and damage to the airplane during take-off or landing.
Airworthiness Directives; Airbus Model A330, A340-200, and A340-300 Series Airplanes
The FAA proposes to adopt a new airworthiness directive (AD) for all Airbus Model A330, A340-200, and A340-300 series airplanes. This proposed AD would require inspecting to determine the part number and serial number of the left- and right-hand elevator assemblies, performing related investigative and corrective actions if necessary, and re-protecting the elevator assembly. This proposed AD is prompted by reports that areas on the top skin panel of the right-hand elevator have disbonded due to moisture penetration. We are proposing this AD to prevent disbonding of the elevator assembly, which could reduce the structural integrity of the elevator and result in reduced controllability of the airplane.
Airworthiness Directives; Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-120 Series Airplanes
This document revises an earlier proposed airworthiness directive (AD), applicable to certain EMBRAER Model EMB-120 series airplanes that would have required initial and repetitive calibration testing of potentiometers to detect noisy signals and replacement of only those with noisy signals. This new action revises the proposed AD by reducing the compliance time for the repetitive calibration testing of the potentiometers and adding the requirement for reporting results of the calibration tests of the potentiometers and the readouts of the flight data recorder (FDR) to the airplane manufacturer. The actions specified by this new proposed AD are intended to prevent the potentiometers that provide information on the positions of the primary flight controls to the FDR from transmitting noisy signals or becoming improperly calibrated, resulting in the transmission of incomplete or inaccurate data to the FDR. This lack of reliable data could hamper discovery of the unsafe condition that caused an accident or incident and prevent the FAA from developing and mandating actions to prevent additional accidents or incidents caused by that same unsafe condition. This action is intended to address the identified unsafe condition.
Airworthiness Directives; Boeing Model 747 Airplanes
The FAA proposes to supersede an existing airworthiness directive (AD) that applies to certain Boeing Model 747-100, -200, - 300, and 747SP series airplanes. The existing AD currently requires certain inspections to find missing or alloy-steel taperlock fasteners (bolts) in the diagonal brace underwing fittings, and corrective actions if necessary. For airplanes with missing or alloy-steel fasteners, the existing AD also mandates replacement of certain fasteners with new fasteners, which constitutes terminating action for certain inspections. This proposed AD would expand the applicability to include additional airplane models and would require a new inspection to determine fastener material and to find missing or broken fasteners, and related investigative/corrective actions if necessary. This proposed AD is prompted by reports indicating that cracked fasteners made of A286 material were found on airplanes that had only fasteners made of A286 material installed in the area common to the diagonal brace underwing fittings. We are proposing this AD to prevent loss of the underwing fitting load path due to missing or damaged alloy-steel or A286 taperlock fasteners, which could result in separation of the engine and strut from the airplane.
Airworthiness Directives; Saab Model SAAB 2000 Series Airplanes
The FAA proposes to adopt a new airworthiness directive (AD) for certain Saab Model SAAB 2000 series airplanes. This proposed AD would require a one-time inspection to detect a broken terminal stud on a main relay of the electrical power generator, and corrective action if necessary. This proposed AD is prompted by disconnection of an electrical power generator during an inspection flight, which was caused by a broken terminal stud on the main relay. We are proposing this AD to prevent a broken terminal stud on the main relay of an electrical power generator, which could reduce the redundancy of electrical power systems, result in increased pilot workload, and contribute to reduced controllability of the airplane.
Performance-Based Operations Aviation Rulemaking Committee
This document announces a public meeting in which the Federal Aviation Administration (FAA) and members of the Performance-Based Operations Aviation Rulemaking Committee (PARC) will discuss the activities of the PARC since the Federal Aviation Administrator chartered the group in February 2004.
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