Notice of Intent To Designate as Abandoned Normal Category Type Certificate: Silvercraft S.co.p.a., Type Certificate No. H2EU
This notice announces the FAA's intent to designate Silvercraft S.co.p.a. (Silvercraft) Type Certificate (TC) H2EU, issued in the normal category, as abandoned. The FAA has been unable to locate Silvercraft, the TC holder, concerning the continued airworthiness of the aircraft certificated under its TC. The Federal Aviation Regulations (regulations) require that TC holders report certain failures, malfunctions, and defects to the FAA. The regulations also require, upon request, that TC holders submit design changes to the FAA that are necessary to correct any unsafe condition in their products. The FAA is responsible for surveillance of Silvercraft's ability to perform continued operational safety management and oversight of the helicopter on its TC. This action is intended to ensure that Silvercraft Model SH-4 helicopters are under a TC that has active continued operational safety management and oversight by a TC holder that can be subject to periodic safety audits by the FAA.
Sixth Meeting: Special Committee (229) 406 MHz Emergency Locator Transmitters (ELTs)
The FAA is issuing this notice to advise the public of the sixth Special Committee 229 meeting.
Airworthiness Directives; Airbus Airplanes
We are superseding Airworthiness Directive (AD) 2011-19-04, for all Airbus Model A318, A319, A320, and A321 series airplanes. AD 2011-19-04 required repetitive inspections for cracking of the left- hand and right-hand inboard and outboard elevator servo-control rod eye-ends, and corrective actions if necessary. This new AD requires an inspection to determine if certain elevator servo-control parts are installed, and replacement if necessary. This AD was prompted by a determination that certain elevator servo-control parts that do not conform to the approved type design have been installed and may have the potential of cracks in the rod eye-end. We are issuing this AD to detect and correct rod eye-end cracking, which could result in uncontrolled elevator surface and consequent reduced control of the airplane.
Airworthiness Directives; The Boeing Company Airplanes
We are superseding Airworthiness Directive (AD) 2012-24-10 for certain The Boeing Company Model 747-400 and -400F series airplanes. AD 2012-24-10 required installing new software, replacing the duct assembly with a new duct assembly, making wiring changes, and routing certain wire bundles. This new AD retains the requirements of AD 2012- 24-10 and requires installing a new or serviceable pressure switch bracket and altitude pressure switch. This new AD also adds an airplane to the applicability. This AD was prompted by reports of intermittent or blank displays of a certain integrated display unit (IDU) that were due to an intermittent false electrical ground that was not addressed by the software installation or wiring changes required by AD 2012-24- 10. We are issuing this AD to prevent IDU malfunctions, which could affect the ability of the flightcrew to read primary displays for airplane attitude, altitude, or airspeed, and consequently reduce the ability of the flightcrew to maintain control of the airplane.
Airworthiness Directives; Airbus Airplanes
We are revising an earlier proposed airworthiness directive (AD) for all Airbus Model A318, A319, A320, and A321 series airplanes. The NPRM proposed to supersede Airworthiness Directives (AD) 2011-13-11 and AD 2013-16-09. 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. The NPRM was prompted by a determination that the interval of the MLG door opening sequence inspection must be reduced. The NPRM proposed to reduce the interval of the MLG door opening sequence inspection, and also to replace or modify certain MLG door actuators. This action revises the NPRM by adding a flushing procedure to be performed when installing a new MLG door actuator. We are proposing this supplemental NPRM (SNPRM) 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. Since these actions impose an additional burden over those proposed in the NPRM, we are reopening the comment period to allow the public the chance to comment on these proposed changes.