Federal Aviation Administration April 15, 2013 – Federal Register Recent Federal Regulation Documents

Airworthiness Directives; The Boeing Company Airplanes
Document Number: 2013-08768
Type: Proposed Rule
Date: 2013-04-15
Agency: Federal Aviation Administration, Department of Transportation
We propose to supersede an existing airworthiness directive (AD) that applies to certain The Boeing Company Model 757 series airplanes equipped with Rolls-Royce RB211 engines. The existing AD currently requires modification of the nacelle strut and wing structure; for certain airplanes, repetitive detailed inspections of certain aft bulkhead fasteners for loose or missing fasteners, and corrective action if necessary. For certain other airplanes, the existing AD requires a one-time detailed inspection of the middle gusset of the inboard side load fitting for proper alignment, and realignment if necessary; a one-time eddy current inspection of certain fastener holes for cracking, and repair if necessary; a detailed inspection of certain fasteners for loose or missing fasteners; and replacement with new fasteners if necessary. Since we issued that AD, a compliance time error was discovered, which could allow an airplane to exceed the acceptable compliance time for addressing the unsafe condition. This proposed AD would specify a maximum compliance time limit. We are proposing this AD to prevent fatigue cracking in primary strut structure and consequent reduced structural integrity of the strut.
Airworthiness Directives; Eurocopter Deutschland GmbH Helicopters
Document Number: 2013-08760
Type: Proposed Rule
Date: 2013-04-15
Agency: Federal Aviation Administration, Department of Transportation
We propose to adopt a new airworthiness directive (AD) for Eurocopter Deutschland GmbH (Eurocopter) Model EC135 P1, EC135 P2, EC135 P2+, EC135 T1, EC135 T2, EC135 T2+, and MBB-BK 117 C-2 helicopters with a certain external mounted hoist system (hoist) with boom support assembly (boom) installed. This proposed AD would require inspecting the boom for a crack and, if a crack exists, replacing the boom with an airworthy boom. This proposed AD is prompted by cracks found on the boom during a pre-flight check of a hoist on an MBB-BK 117 C-2 helicopter. The proposed actions are intended to detect a crack and prevent failure of the boom, loss of the boom and attached loads, and subsequent loss of helicopter control.
Airworthiness Directives; Eurocopter France Helicopters
Document Number: 2013-08758
Type: Proposed Rule
Date: 2013-04-15
Agency: Federal Aviation Administration, Department of Transportation
We propose to adopt a new airworthiness directive (AD) for Eurocopter France (Eurocopter) Model EC120B and EC130B4 helicopters with certain emergency flotation gear (float) installed. This proposed AD would require inspecting the float for chafing of the fabric covering and adding protectors to the float installation to prevent contact between the float and the protruding sections of the installation. This proposed AD is prompted by a report of a float that would not inflate during overhaul because one of the float compartments was punctured due to chafing. The proposed actions are intended to prevent failure of float and subsequent loss of control of the helicopter during an emergency water landing.
Modification of Area Navigation (RNAV) Route T-266; AK
Document Number: 2013-08599
Type: Rule
Date: 2013-04-15
Agency: Federal Aviation Administration, Department of Transportation
This action modifies low-altitude RNAV route T-266 in the state of Alaska by removing two non-directional beacons (NDB) as the navigation signal source for segments of the route and replacing them with RNAV waypoints. This action enhances the safety and efficiency of the National Airspace System (NAS).
Establishment of Area Navigation (RNAV) Routes; OR
Document Number: 2013-08591
Type: Rule
Date: 2013-04-15
Agency: Federal Aviation Administration, Department of Transportation
This action establishes two new low-altitude RNAV routes, designated T-302 and T-304, in the state of Oregon. The routes replace segments of an existing VHF Omnidirectional Range (VOR) Federal airway that will be removed due to the planned decommissioning of the Portland, OR, VOR/DME in 2013. This action advances the implementation of RNAV in the National Airspace System (NAS) and provides continued en route navigation guidance in the affected airspace.
Airworthiness Directives; Airbus Airplanes
Document Number: 2013-08570
Type: Rule
Date: 2013-04-15
Agency: Federal Aviation Administration, Department of Transportation
We are superseding an existing airworthiness directive (AD) for certain Airbus Model A319, A320, and A321 series airplanes. That AD currently requires installing spacer assemblies at the attachment points of the YZ-latches of the cargo loading system (CLS) in the forward and aft cargo compartments, as applicable. This new AD also requires modifying the attachment points of fixed YZ-latches of the CLS lower deck cargo holds on those airplanes on which one or both lower deck cargo holds have not been modified, which terminates the existing requirements. This AD was prompted by results from tests that have shown that the attachment points of the YZ-latches of the cargo loading system (CLS) fail under maximum loads and reports that installation has been applied only on one of the lower deck cargo holds, instead of on both forward and aft cargo holds, and that some airplanes could have installed the affected YZ-latches through the instructions of the cargo conversion manual. We are issuing this AD to prevent failure of the attachment points of the YZ-latches, which could result in unrestrained cargo causing damage to the fire protection system, hydraulic system, electrical wiring, or other equipment located in the forward and aft cargo compartments. This damage could adversely affect the continued safe flight of the airplane.
Airworthiness Directives; BRP-Powertrain GmbH & Co KG Rotax Reciprocating Engines
Document Number: 2013-08460
Type: Rule
Date: 2013-04-15
Agency: Federal Aviation Administration, Department of Transportation
We are adopting a new airworthiness directive (AD) for certain BRP-Powertrain GmbH & Co KG Rotax 912 F2; 912 F3; 912 F4; 912 S2; 912 S3; 912 S4; 914 F2; 914 F3; and 914 F4 reciprocating engines. This AD requires a one-time visual inspection for excessive oil deposits or carbon deposits on the No. 2 and No. 3 spark plug center and grounding electrodes, and if found, replacement of the cylinder head before further flight. This AD was prompted by a report of certain No. 2 and No. 3 cylinder heads not manufactured to proper specification. We are issuing this AD to prevent excessive oil consumption, which could result in an in-flight engine shutdown, forced landing, and damage to the airplane.
Airworthiness Directives; International Aero Engines AG Turbofan Engines
Document Number: 2013-08448
Type: Rule
Date: 2013-04-15
Agency: Federal Aviation Administration, Department of Transportation
We are adopting a new airworthiness directive (AD) for certain International Aero Engines AG (IAE), V2525-D5 and V2528-D5 turbofan engines, with a certain No. 4 bearing internal scavenge tube and a certain No. 4 bearing external scavenge tube installed. This AD was prompted by a report of an engine under-cowl fire and commanded in- flight shutdown. This AD would require replacement of certain part number (P/N) No. 4 bearing internal scavenge tubes, and alignment checks of certain P/N No. 4 bearing external scavenge tubes. We are issuing this AD to prevent engine fire and damage to the airplane.
Airworthiness Directives; Rolls-Royce plc Turbofan Engines
Document Number: 2013-08445
Type: Rule
Date: 2013-04-15
Agency: Federal Aviation Administration, Department of Transportation
We are adopting a new airworthiness directive (AD) for certain Rolls-Royce plc (RR) RB211-Trent 970-84, RB211-Trent 970B-84, RB211- Trent 972-84, RB211-Trent 972B-84, RB211-Trent 977-84, RB211-Trent 977B-84, and RB211-Trent 980-84 turbofan engines. This AD requires inspection of the intermediate pressure compressor rear stub shaft (IPC RSS) piston ring. This AD was prompted by the failure of an oil pump drive shear neck due to a piston ring seal that was not seated properly in the IPC RSS groove. We are issuing this AD to prevent failure of the oil pump drive shear neck, which could result in loss of oil pressure in one or more engines and reduced control of the airplane.
Airworthiness Directives; The Boeing Company Airplanes
Document Number: 2013-08346
Type: Rule
Date: 2013-04-15
Agency: Federal Aviation Administration, Department of Transportation
We are superseding an existing airworthiness directive (AD) for certain The Boeing Company Model 777-200, -200LR, -300, and -300ER series airplanes. That AD currently requires inspecting for scribe lines in the skin along lap joints, butt joints, certain external doublers, and the large cargo door hinges, and doing related investigative and corrective actions if necessary. This new AD adds an inspection for scribe lines where external decals have been applied or removed across lap joints, large cargo door hinges, and external doublers, and related investigative and corrective actions if necessary. This AD was prompted by a determination that scribe lines could occur where external decals are installed or removed across lap joints, large cargo door hinges, or external doublers. We are issuing this AD to detect and correct scribe lines, which can develop into fatigue cracks in the skin. Undetected fatigue cracks can grow and cause sudden decompression of the airplane.
Airworthiness Directives; The Boeing Company Airplanes
Document Number: 2013-08193
Type: Rule
Date: 2013-04-15
Agency: Federal Aviation Administration, Department of Transportation
We are adopting a new airworthiness directive (AD) for all The Boeing Company Model 737-600, -700, -700C, -800, -900, and -900ER series airplanes. This AD was prompted by reports of an incorrect procedure used to apply the wear and corrosion protective surface coating to attach pins of the horizontal stabilizer rear spar. This AD requires inspecting to determine the part number of the attach pins of the horizontal stabilizer rear spar, and replacing certain attach pins with new, improved attach pins. We are issuing this AD to prevent premature failure of the attach pins, which could cause reduced structural integrity of the horizontal stabilizer to fuselage attachment, resulting in loss of control of the airplane.
Airworthiness Directives; The Boeing Company Airplanes
Document Number: 2013-08192
Type: Rule
Date: 2013-04-15
Agency: Federal Aviation Administration, Department of Transportation
We are adopting a new airworthiness directive (AD) for certain The Boeing Company Model 737-700, -700C, -800, and -900ER series airplanes, Model 747-400F series airplanes, and Model 767-200 and -300 series airplanes. This AD was prompted by reports indicating that certain crew oxygen mask stowage box units were possibly delivered with a burr in the inlet fitting. The burr might break loose during test or operation, and might pose an ignition source or cause an inlet valve to jam. This final rule adds a step to identify and label certain crew oxygen mask stowage box units that have already been inspected and reworked by the supplier, and allows operators to install new or serviceable crew oxygen mask stowage box units, and requires a general visual inspection for affected serial numbers of the crew oxygen mask stowage box units, and replacement or re-identification as necessary. We are issuing this AD to prevent an ignition source, which could result in an oxygen-fed fire; or an inlet valve jam in a crew oxygen mask stowage box unit, which could result in restricted flow of oxygen.
Airworthiness Directives; The Boeing Company Airplanes
Document Number: 2013-08191
Type: Rule
Date: 2013-04-15
Agency: Federal Aviation Administration, Department of Transportation
We are adopting a new airworthiness directive (AD) for certain The Boeing Company Model 757 airplanes. This AD was prompted by reports that inspections of the wing center section revealed defective, misapplied, or missing secondary fuel vapor barriers on the center fuel tank. This AD requires inspecting for discrepancies and insufficient coverage of the secondary fuel barrier, determining the thickness of the secondary fuel barrier, and corrective actions if necessary. We are issuing this AD to detect and correct defective surfaces and insufficient thickness of the secondary fuel barrier, which could allow fuel leaks or fumes into the pressurized cabin, and allow fuel or fuel vapors to come in contact with an ignition source, which could result in a fire or an explosion.
Airworthiness Directives; Diamond Aircraft Industries GmbH Airplanes
Document Number: 2013-07500
Type: Rule
Date: 2013-04-15
Agency: Federal Aviation Administration, Department of Transportation
We are adopting a new airworthiness directive (AD) for Diamond Aircraft Industries GmbH Models DA 42, DA 42 M-NG, and DA 42NG airplanes. This AD results from mandatory continuing airworthiness information (MCAI) issued by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as overextension of the main landing gear (MLG) shock absorber that could lead to the MLG jamming in the gear bay and result in damage to the aircraft or occupant injury. We are issuing this AD to require actions to address the unsafe condition on these products.