Federal Aviation Administration August 13, 2014 – Federal Register Recent Federal Regulation Documents

Airworthiness Directives; ATR-GIE Avions de Transport Régional Airplanes
Document Number: 2014-19158
Type: Proposed Rule
Date: 2014-08-13
Agency: Federal Aviation Administration, Department of Transportation
We propose to adopt a new airworthiness directive (AD) for certain ATRGIE Avions de Transport R[eacute]gional Model ATR42-500 airplanes, and Model ATR72-212A airplanes. This proposed AD was prompted by a report that during an inspection of an airplane on the production line, interference was detected between the electrical harness and a bonding lead due to an incorrect installation of the affected bonding lead. This proposed AD would require a detailed inspection for damage or incorrect routing of the bonding lead routing above the 120VU shelf, and if any damage or incorrect routing is found, modifying the bonding lead routing. We are proposing this AD to detect and correct installation of the bonding lead, which could cause arcing and chafing, and could possibly result in an uncontrolled fire.
Airworthiness Directives; Airbus Airplanes
Document Number: 2014-19157
Type: Proposed Rule
Date: 2014-08-13
Agency: Federal Aviation Administration, Department of Transportation
We propose to supersede Airworthiness Directive (AD) 2011-13- 11 and AD 2013-16-09, for all Airbus Model A318, A319, A320, and A321 series airplanes. AD 2011-13-11 currently requires an amendment of the airplane flight manual (AFM), repetitive checks of specific centralized fault display system (CFDS) messages, an inspection of the opening sequence of the main landing gear (MLG) door actuator for discrepancies if certain messages are found, and corrective actions if necessary. AD 2013-16-09 currently requires an inspection to determine airplane configuration and part numbers of the landing gear control interface unit and MLG door actuators; and, for affected airplanes, repetitive inspections of the opening sequence of the MLG door actuator, and replacement of the MLG door actuator if necessary; and provides optional terminating action for the repetitive inspections. Since we issued AD 2011-13-11 and AD 2013-16-09, we have determined that the interval of the MLG door opening sequence inspection must be reduced. This proposed AD would reduce the interval of the MLG door opening sequence inspection. This proposed AD would also require replacing or modifying certain MLG door actuators. We are proposing this AD to detect and correct deterioration of the damping ring and associated retaining ring of the MLG door actuator, which can sufficiently increase the friction inside the actuator to restrict opening of the MLG door by gravity, during operation of the landing gear alternate (free-fall) extension system. This condition could prevent the full extension and/or down-locking of the MLG, possibly resulting in MLG collapse during landing and consequent damage to the airplane and injury to occupants.
Airworthiness Directives; Bombardier, Inc. Airplanes
Document Number: 2014-19156
Type: Proposed Rule
Date: 2014-08-13
Agency: Federal Aviation Administration, Department of Transportation
We propose to adopt a new airworthiness directive (AD) for certain Bombardier Inc. Model DHC-8-400 series airplanes. This proposed AD was prompted by a report that during production, an incorrect clevis was used, resulting in improper installation onto the alternate release cable of the main landing gear (MLG). This proposed AD would require a detailed visual inspection of the emergency release clevis of the MLG to determine if an incorrect clevis has been installed, and if necessary, replacing the clevis with a correct clevis and clevis pin. We are proposing this AD to detect and correct improper installation of the clevis, which could cause loss of the alternate release system and prevent the MLG from extending and retracting, and could consequently affect the airplane's continued safe flight and landing.
Airworthiness Directives; Airbus Airplanes
Document Number: 2014-19155
Type: Proposed Rule
Date: 2014-08-13
Agency: Federal Aviation Administration, Department of Transportation
We propose to adopt a new airworthiness directive (AD) for certain Airbus Model A330-300 and A340-200 and -300 series airplanes. This proposed AD was prompted by a report of substantial inner skin disbonding damage found on a rudder. This proposed AD would require performing an inspection for damage of certain rudders, and repair if necessary. We are proposing this AD to detect and correct damage of the rudder, which could result in reduced structural integrity of the rudder.
Airworthiness Directives; Bombardier, Inc. Airplanes
Document Number: 2014-19153
Type: Proposed Rule
Date: 2014-08-13
Agency: Federal Aviation Administration, Department of Transportation
We propose to adopt a new airworthiness directive (AD) for certain Bombardier, Inc. Model DHC-8-400 series airplanes. This proposed AD was prompted by reports of corrosion in the low-rate discharge tubes of the fire protection system leading to the forward baggage compartment, and perforation of one or more tubes. This proposed AD would require repetitive checks for leakage of the discharge tubes of the fire protection system. This proposed AD also mandates eventual replacement of all existing aluminum tube assemblies with new, improved corrosion- resistant stainless steel tube assemblies. We are proposing this AD to prevent perforation of the low-rate discharge tubes, which could result in insufficient fire extinguishing agent reaching the forward baggage compartment in the event of a fire, which could result in damage to the airplane and injury to the occupants.