Federal Aviation Administration March 5, 2015 – Federal Register Recent Federal Regulation Documents

Meeting; RTCA Program Management Committee
Document Number: 2015-05108
Type: Notice
Date: 2015-03-05
Agency: Federal Aviation Administration, Department of Transportation
The FAA is issuing this notice to advise the public of a meeting of RTCA Program Management Committee.
Special Conditions: Bombardier Aerospace, Models BD-500-1A10 and BD-500-1A11; Electronic Flight Control System: Lateral-Directional and Longitudinal Stability and Low-Energy Awareness
Document Number: 2015-05048
Type: Proposed Rule
Date: 2015-03-05
Agency: Federal Aviation Administration, Department of Transportation
This action proposes special conditions for the Bombardier Aerospace Models BD-500-1A10 and BD-500-1A11 series airplanes. These airplanes will have a novel or unusual design feature when compared to the state of technology envisioned in the airworthiness standards for transport category airplanes. This design feature is a fly-by-wire electronic flight control system that provides an electronic interface between the pilot's flight controls and the flight control surfaces for both normal and failure states. The system generates the actual surface commands that provide for stability augmentation and control about all three airplane axes. The applicable airworthiness regulations do not contain adequate or appropriate safety standards for this design feature. These proposed special conditions contain the additional safety standards that the Administrator considers necessary to establish a level of safety equivalent to that established by the existing airworthiness standards.
Special Conditions: Bombardier Aerospace, Models BD-500-1A10 and BD-500-1A11 Series Airplanes; Alternate Fuel Tank Structural Lightning Protection Requirements
Document Number: 2015-05047
Type: Rule
Date: 2015-03-05
Agency: Federal Aviation Administration, Department of Transportation
These special conditions are issued for the Bombardier Aerospace Models BD-500-1A10 and BD-500-1A11 series airplanes. These airplanes will have a novel or unusual design feature when compared to the state of technology envisioned in the airworthiness standards for transport category airplanes. This design feature is a nitrogen generation system (NGS) for all fuel tanks that actively reduces flammability exposure within the fuel tanks significantly below that required by the fuel tank flammability regulations. Among other benefits, the NGS significantly reduces the potential for fuel vapor ignition caused by lightning strikes. The applicable airworthiness regulations do not contain adequate or appropriate safety standards for this design feature. These special conditions contain the additional safety standards that the Administrator considers necessary to establish a level of safety equivalent to that established by the existing airworthiness standards.
Airworthiness Directives; Airbus Airplanes
Document Number: 2015-04504
Type: Proposed Rule
Date: 2015-03-05
Agency: Federal Aviation Administration, Department of Transportation
We propose to adopt a new airworthiness directive (AD) for all Airbus Model A318, A319, A320, and A321 series airplanes. This proposed AD was prompted by a determination that, in specific flight conditions, the allowable load limits on the vertical tail plane could be reached and possibly exceeded. Exceeding allowable load could result in detachment of the vertical tail plane. This proposed AD would require modification of the pin programming flight warning computer (FWC) to activate the stop rudder input warning (SRIW) logic; and an inspection to determine the part numbers of the FWC and the flight augmentation computer (FAC), and replacement of the FWC and FAC if necessary. We are proposing this AD to prevent detachment of the vertical tail plane and consequent loss of control of the airplane.
Airworthiness Directives; Airbus Airplanes
Document Number: 2015-02923
Type: Proposed Rule
Date: 2015-03-05
Agency: Federal Aviation Administration, Department of Transportation
We propose to adopt a new airworthiness directive (AD) for all Airbus Model A318, A319, and A320 series airplanes. This proposed AD was prompted by a cracked upper cardan in the main landing gear (MLG). This proposed AD would require revising the maintenance or inspection program, as applicable, to reduce the life limits for the MLG upper cardan for certain installations. We are proposing this AD to prevent failure of the upper cardan in the MLG, which could result in MLG collapse and subsequent damage to the airplane and injury to occupants.