Federal Aviation Administration March 14, 2016 – Federal Register Recent Federal Regulation Documents

We propose to adopt a new airworthiness directive (AD) for certain Gulfstream Aerospace Corporation Model GV and GV-SP airplanes. This proposed AD was prompted by a new revision to the airworthiness limitations of the maintenance planning document based on fatigue and damage tolerance testing, and updated analysis. This proposed AD would require revising the maintenance or inspection program to update inspection requirements and life limits that address fatigue cracking of principal structural elements (PSEs). We are proposing this AD to ensure fatigue cracking of PSEs is detected and corrected; such fatigue cracking could result in reduced structural integrity of the PSEs and critical components.

The FAA is withdrawing a notice of proposed rulemaking (NPRM). The NPRM proposed a new airworthiness directive (AD) for Sikorsky Model S-92A helicopters. The proposed action would have required revising the Limitations section of the Rotorcraft Flight Manual (RFM) to clarify that the Model S-92A helicopter was certificated as a transport category rotorcraft in both Categories A and B with different operating limitations for each category and must be operated accordingly. Since we issued the NPRM, we have determined that operating the helicopter in Category B with 10 or more passenger seats is not an unsafe condition but an inconsistency with 14 CFR 29.1(c). Accordingly, we withdraw the proposed rule.

The FAA proposes to amend its airworthiness standards for normal, utility, acrobatic, and commuter category airplanes by removing current prescriptive design requirements and replacing them with performance-based airworthiness standards. The proposed standards would also replace the current weight and propulsion divisions in small airplane regulations with performance- and risk-based divisions for airplanes with a maximum seating capacity of 19 passengers or less and a maximum takeoff weight of 19,000 pounds or less. The proposed airworthiness standards are based on, and would maintain, the level of safety of the current small airplane regulations. Finally, the FAA proposes to adopt additional airworthiness standards to address certification for flight in icing conditions, enhanced stall characteristics, and minimum control speed to prevent departure from controlled flight for multiengine airplanes. This notice of proposed rulemaking addresses the Congressional mandate set forth in the Small Airplane Revitalization Act of 2013.