Federal Aviation Administration May 31, 2017 – Federal Register Recent Federal Regulation Documents

These special conditions are issued for non-rechargeable lithium battery installations on The Boeing Company (Boeing) Model 777- 300ER series airplanes. Non-rechargeable lithium batteries are a novel or unusual design feature when compared to the state of technology envisioned in the airworthiness standards for transport category airplanes. 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.

These special conditions are issued for non-rechargeable lithium battery installations on the Embraer S.A. (Embraer) Model ERJ 170-200 LR airplane. Non-rechargeable lithium batteries are a novel or unusual design feature when compared to the state of technology envisioned in the airworthiness standards for transport category airplanes. 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.

These special conditions are issued for non-rechargeable lithium battery installations on the Embraer S.A. (Embraer) Model ERJ 190-300 airplane. Non-rechargeable lithium batteries are a novel or unusual design feature when compared to the state of technology envisioned in the airworthiness standards for transport category airplanes. 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.

The FAA is correcting the special condition published on November 9, 2016 which became effective on December 9, 2016 for the BHTI Model 525 helicopter. This helicopter has a novel or unusual design feature associated with the electronic CAS. The applicable airworthiness regulations do not contain adequate or appropriate safety standards for this design feature. The 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.

We propose to adopt a new airworthiness directive (AD) for all Dassault Aviation Model FALCON 2000EX airplanes. This proposed AD was prompted by a quality review of delivered airplanes, which identified a manufacturing deficiency of some engine air inlet anti-ice ``piccolo'' tubes. This proposed AD would require inspecting each anti-ice ``piccolo'' tube assembly of certain engine air inlets for discrepancies, and doing corrective actions if necessary. We are proposing this AD to address the unsafe condition on these products.

We propose to supersede Airworthiness Directive (AD) 2015-23- 12, for all ATRGIE Avions de Transport R[eacute]gional Model ATR42 and ATR72 airplanes. AD 2015-23-12 currently requires identifying the serial number and part number of the main landing gear (MLG) rear hinge pins, and replacing pins or the MLG if necessary. Since we issued AD 2015-23-12, we have received a new report of a certain cracked MLG hinge pin on a Model ATR42 airplane. We have determined that certain additional MLG hinge pins must be replaced, and certain compliance times must be reduced. This proposed AD would require identifying the serial number and part number of the MLG rear hinge pins, and replacing pins if necessary. We are proposing this AD to address the unsafe condition on these products.

We propose to adopt a new airworthiness directive (AD) for all Bombardier, Inc., Model CL-600-2B19 (Regional Jet Series 100 & 440), CL-600-2C10 (Regional Jet Series 700, 701, & 702), Model CL-600-2D15 (Regional Jet Series 705), and Model CL-600-2D24 (Regional Jet Series 900) airplanes. This proposed AD was prompted by development of a modification to prevent uncommanded rudder movement during flight. This proposed AD would require modifying the wiring harness of the yaw damper control system. We are proposing this AD to address the unsafe condition on these products.