Federal Aviation Administration 2011 – Federal Register Recent Federal Regulation Documents
Results 1,501 - 1,550 of 1,600
Standard Instrument Approach Procedures, and Takeoff Minimums and Obstacle Departure Procedures; Miscellaneous Amendments
This establishes, amends, suspends, or revokes Standard Instrument Approach Procedures (SIAPs) and associated Takeoff Minimums and Obstacle Departure Procedures for operations at certain airports. These regulatory actions are needed because of the adoption of new or revised criteria, or because of changes occurring in the National Airspace System, such as the commissioning of new navigational facilities, adding new obstacles, or changing air traffic requirements. These changes are designed to provide safe and efficient use of the navigable airspace and to promote safe flight operations under instrument flight rules at the affected airports.
Notice of Opportunity for Public Comment on Surplus Property Release at Brunswick-Golden Isles Airport, Brunswick, GA
Under the provisions of Title 49, U.S.C. Section 47153(c), notice is being given that the FAA is considering a request from the Glynn county Airport Commission to waive the requirement that a 16.84- acre parcel of surplus property, located on Glynn County Airport owned and operated land adjacent to, but separated by a public roadway, Brunswick-Golden Isles Airport, be used for aeronautical purposes.
Airworthiness Directives; PIAGGIO AERO INDUSTRIES S.p.A Model PIAGGIO P-180 Airplanes
We are adopting a new airworthiness directive (AD) for the products listed above. This emergency AD was sent previously to all known U.S. owners and operators of these airplanes. This AD supersedes Emergency AD 2011-01-51, requires an immediate functional test of the fuselage drain holes, and requires sending a report of the results to the FAA. This AD also allows, with noted exceptions, for the return/ position of the airplane to a home base, hangar, maintenance facility, etc. This AD was prompted by reports of water accumulation in the belly of the fuselage that froze and caused the flight controls to jam. We are issuing this AD to prevent water or fluid from accumulating in the belly of the fuselage and freezing when the aircraft reaches and holds altitudes where the temperature is below the freezing point. This condition could cause the flight controls to jam with consequent loss of control.
Fifty-Third Meeting: RTCA Special Committee 186: Automatic Dependent Surveillance-Broadcast (ADS-B)
The FAA is issuing this notice to advise the public of a meeting of RTCA Special Committee 186: Automatic Dependent SurveillanceBroadcast (ADS-B).
Fourth Meeting: RTCA Special Committee 224: Airport Security Access Control Systems
The FAA is issuing this notice to advise the public of a meeting of RTCA Special Committee 224: Airport Security Access Control Systems.
Second Meeting RTCA NextGen Advisory Committee (NAC)
The FAA is issuing this notice to advise the public of a meeting of RTCA NextGen Advisory Committee (NAC).
Airworthiness Directives; The Boeing Company Model 737-100, -200, -200C, -300, -400, and -500 Series Airplanes
We propose to adopt a new airworthiness directive (AD) for certain Model 737-100, -200, -200C, -300, -400, and -500 series airplanes. This proposed AD would result in all airplanes having new relays with a ground fault interrupter (GFI) feature. This proposed AD would require, depending on airplane configuration, doing certain wiring changes, replacing the fuel pump power control relays for the main, center and auxiliary tanks, as applicable, with new relays having a GFI feature, performing certain bonding resistance measurements, and modifying relay module assemblies. The proposed AD also would require revising the maintenance program to incorporate Airworthiness Limitations (AWLs) 28-AWL-23 (for Model 737-100, 737-200, and 737-200C series airplanes), and 28-AWL-22 (for Model 737-300, 737-400, and 737- 500 series airplanes). This proposed AD results from fuel system reviews conducted by the manufacturer. We are proposing this AD to prevent damage to the fuel pumps caused by electrical arcing that could introduce an ignition source in the fuel tank, which, in combination with flammable fuel vapors, could result in a fuel tank explosion and consequent loss of the airplane.
Airworthiness Directives; REIMS AVIATION S.A. Model F406 Airplanes
We propose to adopt a new airworthiness directive (AD) for the products listed above that would supersede an existing AD. This proposed AD results from mandatory continuing airworthiness information (MCAI) originated 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:
Crew Resource Management Training for Crewmembers in Part 135 Operations
This final rule requires all certificate holders conducting operations under part 135 to include in their training programs crew resource management training for crewmembers, including pilots and flight attendants. This final rule is needed to ensure that crewmembers in part 135 operations receive training in the use of crew resource management principles, as appropriate for their operation. This final rule responds to National Transportation Safety Board recommendations, addresses a recommendation from the Part 125/135 Aviation Rulemaking Committee, and codifies current FAA guidance. The intended effect of this final rule is to reduce the frequency and severity of errors that are crew based, which will reduce the frequency of accidents and incidents within the scope of part 135 operations.
Petition for Exemption; Summary of Petition Received
This notice contains a summary of a petition seeking relief from specified requirements of 14 CFR. The purpose of this notice is to improve the public's awareness of, and participation in, this aspect of FAA's regulatory activities. Neither publication of this notice nor the inclusion or omission of information in the summary is intended to affect the legal status of the petition or its final disposition.
Petition for Exemption; Summary of Petition Received
This notice contains a summary of a petition seeking relief from specified requirements of 14 CFR. The purpose of this notice is to improve the public's awareness of, and participation in, this aspect of FAA's regulatory activities. Neither publication of this notice nor the inclusion or omission of information in the summary is intended to affect the legal status of the petition or its final disposition.
Airworthiness Directives; The Boeing Company Model 777-200 and -300 Series Airplanes Equipped with Rolls-Royce RB211 Trent 800 Engines
We propose to adopt a new airworthiness directive (AD) for certain Model 777-200 and -300 series airplanes. This proposed AD would require repetitive inspections of all thrust reverser (T/R) structure and sealant for degradation, and related investigative and corrective actions if necessary. This proposed AD results from reports of thrust reverser events related to thermal damage of the thrust reverser inner wall. We are proposing this AD to detect and correct a degraded T/R inner wall panel, which could lead to failure of a T/R and adjacent components and their consequent separation from the airplane, which could result in a rejected takeoff (RTO) and cause asymmetric thrust and consequent loss of control of the airplane during reverse thrust operation. If a T/R inner wall overheats, separated components could cause structural damage to the airplane, damage to other airplanes, or possible injury to people on the ground.
Airworthiness Directives; The Boeing Company Model 777-200 and -300 Series Airplanes Equipped With Pratt and Whitney Engines
We propose to adopt a new airworthiness directive (AD) for certain Model 777-200 and -300 series airplanes. This proposed AD would require repetitive inspections for hydraulic fluid contamination of the interior of the strut disconnect assembly; repetitive inspections for discrepancies of the interior of the strut disconnect assembly, if necessary; repetitive inspections of the exterior of the strut disconnect assembly for cracks, if necessary; and corrective action if necessary. This proposed AD also provides an optional terminating action for the inspections. This proposed AD results from reports of system disconnect boxes that have been contaminated with hydraulic fluid and, in one incident, led to subsequent cracking of titanium parts in the system disconnect assembly. We are proposing this AD to detect and correct hydraulic fluid contamination, which can cause cracking of titanium parts in the system disconnect assembly, resulting in compromise of the engine firewall. A cracked firewall can allow fire in the engine area to enter the strut and can lead to an uncontained engine strut fire if flammable fluid is present. Cracking of the disconnect box may also reduce the effectiveness of the fire extinguishing system in the engine compartment and could contribute to an uncontained engine fire. In addition, a cracked disconnect box can leak flammable fluids into the engine core, which can initiate an engine fire, and lead to one or both fire conditions discussed above.
Airworthiness Directives; Saab AB, Saab Aerosystems Model SAAB 340A (SAAB/SF340A) and SAAB 340B Airplanes Modified in Accordance With Supplemental Type Certificate (STC) ST00224WI-D, ST00146WI-D, or SA984GL-D
We are revising an earlier proposed airworthiness directive (AD) for certain Saab AB, Saab Aerosystems Model SAAB 340A (SAAB/ SF340A) and SAAB 340B airplanes. The first supplemental NPRM would have required inspecting the fuselage surface for corrosion and cracking behind the external adapter plate of the antennae installation, and repair if necessary. The first supplemental NPRM resulted from a report of a crack found behind the external adapter plate of the antennae during inspection. Similar cracking was found on two additional airplanes, and extensive corrosion was found on one airplane. This action revises the first supplemental NPRM by correcting an STC number, which would expand the applicability of the first supplemental NPRM. We are proposing this second supplemental NPRM to detect and correct corrosion and cracking behind the external adapter plate of the antennae of certain damage- tolerant structure, which could result in reduced structural integrity and consequent rapid depressurization of the airplane.
Proposed Establishment of Class E Airspace; Kahului, HI
This action proposes to establish Class E airspace at Kahului Airport, Kahului, HI. Controlled airspace is necessary to accommodate aircraft using the Instrument Landing System (ILS) standard instrument approach procedures at Kahului Airport, Kahului, HI. The FAA is proposing this action to enhance the safety and management of aircraft operations at the airport.
Proposed Amendment of Class E Airspace; Taylor, AZ
This action proposes to modify Class E airspace at Taylor Airport, Taylor, AZ. Controlled airspace is necessary to accommodate aircraft using the CAMBO One Departure Area Navigation (RNAV) out of Taylor Airport. The FAA is proposing this action to enhance the safety and management of aircraft operations at Taylor Airport, Taylor, AZ.
Proposed Amendment of Class E Airspace; West Yellowstone, MT
This action proposes to modify Class E airspace at Yellowstone Airport, West Yellowstone, MT, to accommodate aircraft using the Instrument Landing System (ILS) Localizer (LOC) standard instrument approach procedures at Yellowstone Airport, West Yellowstone, MT. The FAA is proposing this action to enhance the safety and management of aircraft operations at Yellowstone Airport.
Public Notice for Waiver of Aeronautical Land-Use Assurance Viroqua Municipal Airport; Viroqua, WI
The Federal Aviation Administration (FAA) is considering a proposal to authorize the release of 0.93 acres of the airport property at the Viroqua Municipal Airport, Viroqua, WI. The Wisconsin Department of Transportation (WisDOT) is seeking airport property for right of way along U.S. Highway 14/61. The FAA issued a categorical exclusion on December 23, 2010. The acreage being released is not needed for aeronautical use as currently identified on the Airport Layout Plan. The acreage comprising this parcel was originally acquired with local funds by the City of Viroqua. The airport will receive the appraised fair market value of $495,909 for the land. Approval does not constitute a commitment by the FAA to financially assist in the disposal of the subject airport property nor a determination of eligibility for grant-in-aid funding from the FAA. The disposition of proceeds from the disposal of the airport property will be in accordance with FAA's Policy and Procedures Concerning the Use of Airport Revenue, published in the Federal Register on February 16, 1999. In accordance with section 47107(h) of title 49, United States Code, this notice is required to be published in the Federal Register 30 days before modifying the land-use assurance that requires the property to be used for an aeronautical purpose.
Establishment of Class E Airspace; Port Clarence, AK
This action changes the effective date for the establishment of Class E airspace at Port Clarence Coast Guard Station (CGS) Airport, Port Clarence, AK. The charting of this airspace has been delayed; therefore the effective date of the establishment of the Class E airspace area also must be delayed. A minor correction to a geographic coordinate also will be made.
Airworthiness Directives; The Boeing Company Model 777 Airplanes
We propose to adopt a new airworthiness directive (AD) for the products listed above. This proposed AD would require revising the maintenance program to update inspection requirements to detect fatigue cracking of principal structural elements (PSEs). This proposed AD was prompted by a new revision to the airworthiness limitations of the maintenance planning document. We are proposing this AD to ensure that fatigue cracking of various PSEs is detected and corrected; such fatigue cracking could adversely affect the structural integrity of these airplanes.
Airworthiness Directives; The Boeing Company Model 757 Airplanes
The FAA proposes to supersede an existing airworthiness directive (AD) that applies to certain Model 757 airplanes. The existing AD currently requires inspecting certain power feeder wire bundles for damage, inspecting the support clamps for these wire bundles to determine whether the clamps are properly installed, and performing corrective actions if necessary. This proposed AD would require additional inspections for certain airplanes. This proposed AD results from a report that a power feeder wire bundle chafed against the number six auxiliary slat track, causing electrical wires in the bundle to arc, which damaged both the auxiliary slat track and power feeder wires. We are proposing this AD to prevent arcing that could be a possible ignition source for leaked flammable fluids, which could result in a fire. Arcing could also result in a loss of power from the generator connected to the power feeder wire bundle, and consequent loss of systems, which could reduce controllability of the airplane.
Airworthiness Directives; The Boeing Company Model 777-200, -200LR, -300, and -300ER Series Airplanes
We propose to adopt a new airworthiness directive (AD) for the products listed above. This proposed AD would require installing foreign object debris (FOD) rubber shields over the primary and secondary external power connectors for certain airplanes, and wrapping fire-resistant silicone tape around the hydraulic tube for certain other airplanes. This proposed AD was prompted by a report of a fire in the main equipment center due to failure of an external power connector, which caused high-temperature arcing and subsequent splatter of molten copper on an adjacent hydraulic tube, creating a hole in the tube and spraying hydraulic fluid into the power connector, resulting in a fire. In addition there were several reports of overheating or arcing of external power connectors, and one report of a fire due to arcing caused by FOD. We are proposing this AD to prevent FOD from entering the primary and secondary external power connectors, which could result in overheating or arcing and consequent fire in the main equipment center.
Safe, Efficient Use and Preservation of the Navigable Airspace; Correction
The FAA is correcting the regulation addressing the effective date of FAA determinations issued under 14 CFR part 77. The FAA amended this regulation by final rule published on July 21, 2010. The purpose of the final rule was to update the regulations governing objects that may affect the navigable airspace, to incorporate case law and legislative action, and to simplify the rule language. In one section of the regulations, we inadvertently state that the effective date of all determinations is 40 days from the date of issuance. However, only FAA determinations subject to the discretionary review process are effective 40 days from the date of issuance. All other FAA determinations are effective upon issuance. This document corrects that error.
Airworthiness Directives; The Boeing Company Model 737-600, -700, -700C, -800, -900, and -900ER Series Airplanes
We propose to adopt a new airworthiness directive (AD) for certain Model 737-600, -700, -700C, -800, -900, and -900ER series airplanes. This proposed AD would require inspecting to determine the clearance and any wire bundle damage between wire bundle W443 and the left forward rudder quadrant, followed by adjusting the minimum clearance between the wire bundle and the left forward rudder quadrant, and repairing any wire bundle damage. This proposed AD results from reports of contact between wire bundle W443 and the left forward rudder quadrant. We are proposing this AD to detect and correct contact between the wire bundle and the left forward rudder quadrant. Damage to the wire bundle could result in uncommanded stabilizer trim and autopilot disconnects due to shorted wires from contact between the wire bundle and the left forward rudder quadrant, potentially affecting the capability of the flight crew during high work load and consequently reducing control of the airplane. Restricted free movement of the rudder quadrant at full right rudder travel would reduce controllability of the airplane.
Revocation and Establishment of Compulsory Reporting Points; Alaska
This action removes and establishes high altitude Alaskan compulsory reporting points in the vicinity of the United States (U.S.) and Canadian border. Specifically, the FAA is removing BORAN and establishing the TOVAD reporting point.
Amendment of Jet Route J-93; CA
This action amends Jet Route J-93 in California between the Julian VHF Omnidrectional Radio Range Tactical Air Navigation Aid (VORTAC), and the ASUTA intersection on the United States/Mexican border. The FAA is realigning the jet route due to the relocation of the Penasco VOR, located in Mexico. This action ensures the efficient use of our National Airspace System.
Amendment of VOR Federal Airways V-2 and V-21; Hawaii
This action amends two VHF Omnidirectional Range (VOR) Federal airway legal descriptions in the State of Hawaii. The FAA is taking this action to remove exclusions to restricted airspace areas that have been removed from the National Airspace System (NAS).
Airworthiness Directives; Eurocopter France (Eurocopter) Model SA-365N, SA-365N1, AS-365N2, AS 365 N3, and SA-366G1 Helicopters
We propose to adopt a new airworthiness directive (AD) for the specified Eurocopter model helicopters. This proposed AD would require an initial and recurring inspections of the inner angles and flanges of the 9-degree frame on the right-hand (RH) and left-hand (LH) sides for a crack. If a crack is found, this proposed AD would require, before further flight, repairing the frame. This proposed AD is prompted by the discovery of a crack in the 9-degree frame of a Eurocopter Model AS-365N2 helicopter. These cracks could also develop on the other specified model helicopters because they contain the same 9-degree frame. The actions specified by this proposed AD are intended to detect a crack in the 9-degree frame to prevent loss of structural integrity and subsequent loss of control of the helicopter.
Establishment of Class E Airspace; Lucin, UT
This action makes a minor correction to a final rule published in the Federal Register July 8, 2010, that establishes Class E en route domestic airspace for the Lucin VORTAC, Lucin, UT.
Notice of Passenger Facility Charge (PFC) Approvals and Disapprovals
The FAA publishes a monthly notice, as appropriate, of PFC approvals and disapprovals under the provisions of the Aviation Safety and Capacity Expansion Act of 1990 (Title IX of the Omnibus Budget Reconciliation Act of 1990) (Pub. L. 101-508) and Part 158 of the Federal Aviation Regulations (14 CFR Part 158). This notice is published pursuant to paragraph d of Sec. 158.29.
Amendment of Class E Airspace; Kwajalein Island, Marshall Islands, RMI
This action corrects a final rule; technical amendment published in the Federal Register. In that rule, errors were made in the airspace description. This action corrects those errors.
Eighty-Fourth Meeting: RTCA Special Committee 159: Global Positioning System (GPS)
The FAA is issuing this notice to advise the public of a meeting of RTCA Special Committee 159: Global Positioning System (GPS).
Proposed Amendment of Class E Airspace; Pueblo, CO
This action proposes to amend Class E airspace at Pueblo Memorial Airport, Pueblo, CO. Additional controlled airspace is necessary to facilitate vectoring of Instrument Flight Rules (IFR) traffic from en route airspace to Pueblo Memorial Airport. The FAA is proposing this action to enhance the safety and management of aircraft operations at the airport.
Receipt of Noise Compatibility Program and Request for Review for San Diego International Airport, San Diego, CA
The Federal Aviation Administration (FAA) announces that it is reviewing a proposed noise compatibility program that was submitted for San Diego International Airport under the provisions of 49 U.S.C. 47501 et seq. (the Aviation Safety and Noise Abatement Act, hereinafter referred to as ``the Act'') and 14 CFR part 150 by the San Diego County Regional Airport Authority, San Diego County, California. This program was submitted subsequent to a determination by FAA that associated noise exposure maps submitted under 14 CFR Part 150 for San Diego International Airport were in compliance with applicable requirements, effective November 10, 2009, 74 FR 66400-66401. The proposed noise compatibility program will be approved or disapproved on or before July 3, 2011.
Airworthiness Directives; Rolls-Royce plc RB211-Trent 800 Series Turbofan Engines
We propose to adopt a new airworthiness directive (AD) for the products listed above. This proposed 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:
Airworthiness Directives; MD Helicopters, Inc. (MDHI) Model MD900 Helicopters
This document proposes superseding an existing airworthiness directive (AD) for MDHI Model MD900 helicopters. That AD currently requires turning on both Vertical Stabilizer Control System (VSCS) switches and turning off the autopilot (AP/SAS) switch; pulling certain AP/SAS circuit breakers; installing a placard near the AP/SAS master switch; installing an airspeed limitation placard on the instrument panel; and making changes to the Rotorcraft Flight Manual (RFM). This action would retain those requirements and would provide an option of replacing each affected tube adapter with a newly-designed tube adapter, which would provide terminating action for the unsafe condition. This proposal is prompted by the manufacturer introducing an improved, newly-designed tube adapter. The actions specified by this AD are intended to prevent loss of yaw control and subsequent loss of control of the helicopter.
Petition for Exemption; Summary of Petition Received
This notice contains a summary of a petition seeking relief from specified requirements of 14 CFR. The purpose of this notice is to improve the public's awareness of, and participation in, this aspect of FAA's regulatory activities. Neither publication of this notice nor the inclusion or omission of information in the summary is intended to affect the legal status of the petition or its final disposition.
Agency Information Collection Activities: Requests for Comments; Clearance of Renewed Approval of Information Collection(s): Flight Engineers and Flight Navigators.
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. The Federal Register Notice with a 60-day comment period soliciting comments on the following collection of information was published on September 22, 2010, vol. 75, no. 183, page 57828-57829. Information collected is used to determine certification eligibility of Flight Engineers and Flight Navigators.
Airworthiness Directives; Airbus Model A330-300, A340-200, and A340-300 Series Airplanes
We propose to adopt a new airworthiness directive (AD) for the products listed above. This proposed AD results from mandatory continuing airworthiness information (MCAI) originated 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:
Airworthiness Directives; BAE SYSTEMS (OPERATIONS) LIMITED Model BAe 146 Airplanes, and Model Avro 146-RJ Airplanes
We propose to adopt a new airworthiness directive (AD) for the products listed above that would supersede an existing AD. This proposed AD results from mandatory continuing airworthiness information (MCAI) originated 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:
Airworthiness Directives; Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model ERJ 170 and ERJ 190 Airplanes
We propose to adopt a new airworthiness directive (AD) for the products listed above. This proposed AD results from mandatory continuing airworthiness information (MCAI) originated 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:
Airworthiness Directives; M7 Aerospace LP (Type Certificate Previously Held by Fairchild Aircraft Incorporated) Models SA26-AT, SA26-T, SA226-AT, SA226-T, SA226-T(B), SA226-TC, SA227-AC (C-26A), SA227-AT, SA227-BC (C-26A), SA227-CC, SA227-DC (C-26B), and SA227-TT Airplanes
We are adopting a new airworthiness directive (AD) for the products listed above. This AD requires repetitively inspecting the cockpit heated windshields for damage and replacing damaged windshields. This AD was prompted by reports from the windshield manufacturer of inner glass ply fracture. We are issuing this AD to detect and correct damage to the cockpit heated windshield, which could result in failure of the windshield with consequent rapid cabin decompression and loss of control of the airplane.
Procedures for Protests and Contracts Dispute
This action would update, simplify, and streamline the current regulations governing the procedures for bid protests brought against the FAA and contract disputes brought against or by the FAA. It would also add a voluntary dispute avoidance and early resolution process. This action is necessary to ensure the regulations reflect the changes that have evolved since 1999 when they were first implemented. The intended effect of this action is to streamline and further improve the protest and dispute process.
Airworthiness Directives; The Boeing Company Model 757 Airplanes
The FAA is adopting a new airworthiness directive (AD) for Model 757-200, -200PF, -200CB, and -300 series airplanes. This AD requires an inspection of the two spring arms in the spin brake assemblies in the nose wheel well to determine if the spring arms are made of aluminum or composite material, and repetitive related investigative/corrective actions if necessary. This AD also provides options for terminating the repetitive actions. This AD results from reports of cracked and broken aluminum springs. We are issuing this AD to detect and correct cracked or broken springs. A cracked or broken spring could separate from the airplane and result in potential hazard to persons or property on the ground, or ingestion into the engine with engine damage and potential shutdown, or damage to the airplane.
Modification of Class E Airspace; Show Low, AZ
This action will amend Class E airspace at Show Low, AZ, to accommodate aircraft using a new Area Navigation (RNAV) Global Positioning System (GPS) Standard Instrument Approach Procedures at Show Low Regional Airport. This will improve the safety and management of Instrument Flight Rules (IFR) operations at the airport.
Establishment of Class E Airspace; Panguitch, UT
This action will establish Class E airspace at Panguitch, UT, to accommodate aircraft using a new Area Navigation (RNAV) Global Positioning System (GPS) Standard Instrument Approach Procedures at Panguitch Municipal Airport. This will improve the safety and management of Instrument Flight Rules (IFR) operations at the airport.
Airworthiness Directives; Short Brothers PLC Model SD3 Airplanes
We are superseding an existing airworthiness directive (AD) that applies to the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) issued by an airworthiness authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as
Airworthiness Directives; The Boeing Company Model MD-11 and MD-11F Airplanes
We are adopting a new airworthiness directive (AD) for the products listed above. This AD requires a one-time inspection to detect damage of the wire assemblies of the tail tank fuel system, a wiring change, and corrective actions if necessary. This AD also requires, for certain airplanes, a general visual inspection for correct installation of the self-adhering high-temperature electrical insulation tape; installation of a wire assembly support bracket and routing wire assembly; changing wire supports; and installation of a wire protection bracket. This AD was prompted by fuel system reviews conducted by the manufacturer. We are issuing this AD to detect and correct a potential of ignition sources inside fuel tanks, which, in combination with flammable vapors, could result in a fuel tank fire or explosion, and consequent loss of the airplane.
Airworthiness Directives; The Boeing Company Model DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83), DC-9-87 (MD-87), and MD-88 Airplanes
We are adopting a new airworthiness directive (AD) for the products listed above. This AD requires installing fuel level float and pressure switch in-line fuses on the wing forward spars and forward and aft auxiliary fuel tanks, depending on the airplane configuration. This AD was prompted by fuel system reviews conducted by the manufacturer. We are issuing this AD to prevent the potential of ignition sources inside fuel tanks, which, in combination with flammable fuel vapors, could result in fuel tank explosions and consequent loss of the airplane.
Airworthiness Directives; Pilatus Aircraft Ltd. Models PC-6, PC-6-H1, PC-6-H2, PC-6/350, PC-6/350-H1, PC-6/350-H2, PC-6/A, PC-6/A-H1, PC-6/A-H2, PC-6/B-H2, PC-6/B1-H2, PC-6/B2-H2, PC-6/B2-H4, PC-6/C-H2, and PC-6/C1-H2 Airplanes
We are revising an existing airworthiness directive (AD) for the products listed above. 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:
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