Federal Aviation Administration November 27, 2013 – Federal Register Recent Federal Regulation Documents

We are adopting a new airworthiness directive (AD) for The Boeing Company Model 747-8 and 747-8F series airplanes and Model 787-8 airplanes powered by GEnx engines. This AD requires revising the airplane flight manual to advise the flight crew of potential ice crystal icing (ICI) conditions at high altitudes, and to prohibit operation in moderate and severe ICI conditions. This AD also requires inspecting the engine after any ICI event is detected by the flight crew. This AD was prompted by reports of engine damage and thrust loss events as a result of flying in high altitude ICI conditions. We are issuing this AD to ensure that the flight crews have operating instructions to avoid flight into ICI conditions that can lead to engine damage and thrust loss events; unrecoverable thrust loss on multiple engines can lead to a forced landing.

This action makes a minor correction to the longitude coordinate in the boundary of restricted area R-7201, Farallon De Medinilla Island, Mariana Islands, Guam. This change is due to the National Oceanic and Atmospheric Administration's (NOAA) adoption of a revised datum which resulted in a minor shift in the charted location of Farallon De Medinilla Island. This action adjusts the longitude coordinate of the restricted area to ensure that it is charted in the proper position over the Island.

We propose to supersede airworthiness directive (AD) 2009-18- 18, which applies to certain ATRGIE Avions de Transport R[eacute]gional Model ATR42 and ATR72 airplanes. AD 2009-18-18 requires repetitive inspections for damage and absence of repair of the cockpit forward side windows, and replacement if necessary. Since we issued that AD, we received reports of a cockpit forward right-hand side blow out during flight. This proposed AD would require repetitive detailed inspections of the cockpit forward side window for damage and discrepancies; replacement if necessary. Replacing both cockpit forward side windows with approved windows would terminate the repetitive detailed inspections. This proposed AD would also expand the applicability of AD 2009-18-18. The actions required by AD 2009-18-18 are not required by this AD. We are proposing this AD to detect and correct air/water leakage of the cockpit forward side window, which could lead to rapid cabin decompression, resulting in loss of control of the airplane.

These special conditions are issued for the Boeing Model 777- 200, -300, and -300ER series airplanes. These airplanes, as modified by ARINC Aerospace Company, will have novel or unusual design features associated with Class 3 Electronic Flight Bags (EFB) and wireless local area data networks (LAN) associated with the EFB architecture and existing airplane network systems. 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.

In accordance with the Paperwork Reduction Act of 1995, FAA invites public comments about our intention to request the Office of Management and Budget (OMB) approval to renew an information collection.