Federal Aviation Administration 2010 – Federal Register Recent Federal Regulation Documents
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Airworthiness Directives; McDonnell Douglas Corporation Model DC-10-10, DC-10-10F, and MD-10-10F Airplanes
We propose to adopt a new airworthiness directive (AD) for certain Model DC-10-10, DC-10-10F, and MD-10-10F airplanes. This proposed AD would require repetitive inspections for cracking on the lower cap of the rear spar of the left and right wings between stations Xors=417 and the outboard edge of the lower cap splice of the wing rear spar at station Xors=400; temporary and permanent repairs if necessary; and repetitive inspections of repaired areas and corrective actions if necessary. This proposed AD results from reports of three instances of fuel leaks in the lower cap splice of the wing rear spar at station Xors=409. We are proposing this AD to detect and correct cracking on the lower cap of the rear spar of the left and right wings between stations Xors=417 and the outboard edge of the lower cap splice of the wing rear spar at station Xors=400, which could result in fuel leaks or cracking of the lower wing skin and structure, causing possible inability of the structure to sustain the limit load adversely affecting the structural integrity of the airplane.
Airworthiness Directives; The Boeing Company Model 777-200, -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 an auto shutoff feature for the center override/jettison fuel pumps, and installing power control circuitry for the center override/jettison and main jettison fuel pumps. This proposed AD would also require installing new software in the electrical load management system (ELMS) electronics units in certain power management panels; installing airplane information management system 2 (AIMS-2) software in the AIMS-2 hardware; and making certain wiring changes. This proposed AD was prompted by results from fuel system reviews conducted by the manufacturer. We are proposing this AD to prevent the potential of ignition sources inside fuel tanks, which, in combination with flammable fuel vapors, could result in a fuel tank explosion and consequent loss of the airplane.
Airworthiness Directives; Dassault-Aviation Model FALCON 7X 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; Airbus Model A330-200 and -300 Series Airplanes, and Model A340-200 and -300 Series Airplanes
We propose to rescind airworthiness directive (AD) 2009-18-19. This proposed AD results from mandatory continuing airworthiness information (MCAI) issued by EASA, to rescind EASA AD 2010-0083. The MCAI specifies the following:
Airworthiness Directives; APEX Aircraft Model CAP 10 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; Piper Aircraft, Inc. (Type Certificate Previously Held by The New Piper Aircraft, Inc.) Models PA-46-310P, PA-46-350P, and PA-46R-350T Airplanes
We propose to supersede an existing airworthiness directive (AD) that applies to certain Piper Aircraft, Inc. Models PA-46-310P and PA-46-350P airplanes that are equipped with a Lewis or Transicoil turbine inlet temperature (T.I.T.) gauge and associated probe. The existing AD currently requires calibrating the T.I.T. system; replacing any T.I.T. system that fails the calibration test; repetitively replacing the T.I.T. probe on certain Model PA-46-350P airplanes; and inserting a copy of the AD into the pilot's operating handbook (POH) for certain airplanes. Since we issued that AD, the manufacturer has revised related service information and added an airplane model to the list of affected airplanes. This proposed AD would retain the actions required by AD 99-15-04 R1, add certain Model PA-46R-350T airplanes to the Applicability section, expand the applicability to include other T.I.T. systems, and incorporate new service information. We are proposing this AD to prevent improper engine operation caused by improperly calibrated T.I.T. indicators or defective T.I.T. probes, which could result in engine damage/failure with consequent loss of control of the airplane.
Airworthiness Directives; Air Tractor, Inc. Models AT-802 and AT-802A Airplanes
We are revising an existing airworthiness directive (AD) for Air Tractor, Inc. (Air Tractor) Models AT-802 and AT-802A airplanes. That AD currently requires you to repetitively inspect (using the eddy current method) the two outboard fastener holes in both of the wing main spar lower caps at the center splice joint for cracks and repair or replace any cracked spar, and changes the safe life for certain serial (SN) ranges. This AD retains the actions of AD 2010-17-18 and reduces the applicability from all serial numbers beginning with SN- 0001 as required by the previous AD to SN-0001 through SN-0269. This AD was prompted by our evaluation of a comment from David Ligon, Air Tractor, and our determination that we should reduce the applicability from that already required by the previous AD. We are issuing this AD to detect and correct cracks in the wing main spar lower cap at the center splice joint, which could result in failure of the spar cap and lead to wing separation and loss of control of the airplane.
IFR Altitudes; Miscellaneous Amendments
This amendment adopts miscellaneous amendments to the required IFR (instrument flight rules) altitudes and changeover points for certain Federal airways, jet routes, or direct routes for which a minimum or maximum en route authorized IFR altitude is prescribed. This regulatory action is needed because of changes occurring in the National Airspace System. These changes are designed to provide for the safe and efficient use of the navigable airspace under instrument conditions in the affected areas.
Agency Information Collection Activities: Requests for Comments; Clearance of Renewed Approval of Information Collection(s): Mitsubishi MU-2B Series Airplane Special Training, Experience, and Operating Procedures
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 for 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 23, 2010, vol. 75, no. 184, page 58015. This collection of information request is for Mitsubishi MU-2B Series Airplane Special Training, Experience, and Operating Requirements Special Federal Aviation Regulation. The pilot training requires a logbook endorsement and documentation of a training-course completion record.
Airworthiness Directives; Various Aviation Communication & Surveillance Systems (ACSS) Traffic Alert and Collision Avoidance System (TCAS) Units
We propose to adopt a new airworthiness directive (AD) for various aircraft equipped with certain ACSS TCAS units. This proposed AD would require upgrading software. This proposed AD results from reports of anomalies with TCAS units during a flight test over a high density airport. The TCAS units dropped several reduced surveillance aircraft tracks because of interference limiting. We are proposing this AD to prevent TCAS units from dropping tracks, which could compromise separation of air traffic and lead to subsequent mid-air collisions.
Airworthiness Directives; The Boeing Company Model 777-200, -200LR, -300, and -300ER Series Airplanes
We propose to adopt a new airworthiness directive (AD) for certain Model 777-200, -200LR, -300, and -300ER series airplanes. This proposed AD would require, for certain airplanes, replacing certain boost pump relays with ground fault interrupter (GFI) relays. For certain other airplanes, this proposed AD would require installing new panels in the main equipment center, making certain wiring changes, installing new GFI relays in the new panels, and installing new electrical load management system (ELMS) software. For certain other airplanes, this proposed AD would require doing certain bond resistance measurements, and corrective actions if necessary. This proposed AD results from fuel system reviews conducted by the manufacturer. We are proposing this AD to prevent the potential of ignition sources inside fuel tanks, which, in combination with flammable fuel vapors, could result in a fuel tank explosion and consequent loss of the airplane.
Proposed Establishment of Class E Airspace; Colebrook, NH
This action proposes to establish Class E Airspace at Colebrook, NH, to accommodate a new Area Navigation (RNAV) Global Positioning System (GPS) special Standard Instrument Approach Procedure (SIAP) serving the Upper Connecticut Valley Hospital Heliport. This action would enhance the safety and airspace management of Instrument Flight Rules (IFR) operations within the National Airspace System.
Agency Information Collection Activities: Requests for Comments; Clearance of Renewed Approval of Information Collection(s): Performance and Handling Requirements for Rotorcraft
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 23, 2010, vol. 75, no. 184, page 58014. The FAA requires that certain performance information be provided in the Rotorcraft Flight Manual in order to show compliance to the regulatory requirements. The flight manual, by regulation, must be furnished with each aircraft.
Agency Information Collection Activities: Requests for Comments; Clearance of Renewed Approval of Information Collection(s): Criteria for Internet Communications of Aviation Weather, NOTAM, and Aeronautical Data
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 23, 2010, vol. 75, no. 184, page 58015. An Advisory Circular (AC) establishes criteria for Qualified Internet Communications Providers (ICP), who provide access to aviation weather, Notices to Airmen (NOTAM), and aeronautical data via the Public Internet. The information collected is used to determine the provider's eligibility.
Proposed Establishment of Class E Airspace; Wolfeboro, NH
This action proposes to establish Class E Airspace at Wolfeboro, NH, to accommodate a new Area Navigation (RNAV) Global Positioning System (GPS) special Standard Instrument Approach Procedure (SIAP) serving Huggins Hospital Heliport. This action would enhance the safety and airspace management of Instrument Flight Rules (IFR) operations within the National Airspace System.
Modification of Class E Airspace; Rawlins, WY
This action will amend existing Class E airspace at Rawlins, WY. The decommissioning of the Sinclair Non-Directional Radio Beacon (NDB) at Rawlins Municipal Airport/Harvey Field, has made this action necessary. This will improve the safety and management of Instrument Flight Rules (IFR) operations at the airport.
Notice of Decision To Issue Buy American Waivers for Foreign Object Debris (FOD) Detection Equipment
On August 5, 2010, the FAA published a notice in the Federal Register advising manufacturers of Foreign Object Debris (FOD) detection equipment that it was considering issuing waivers to Buy American requirements of 49 USC 50101 to foreign manufacturers of FOD detection equipment (Federal Register/Vol. 75, No. 150/Thursday, August 5, 2010/Notices, page 47344) The FAA has determined that two manufacturers with products containing 60% or more U.S. content and U.S. final assembly are able to produce sufficient and reasonable amounts of FOD detection equipment meeting the requirements of FAA Advisory Circular 150/5220-24. Subsequently, the FAA will issue Buy American Waivers based on the 60% U.S. content and U.S. final assembly. The FAA will not issue any Buy American Waivers based on insufficient quantity to foreign manufacturers.
Proposed Amendment of Class E Airspace; Point Lookout, MO
This action proposes to amend Class E airspace at Point Lookout, MO. Additional controlled airspace is necessary to accommodate new Standard Instrument Approach Procedures (SIAP) at M. Graham Clark- Taney Field Airport. The FAA is taking this action to enhance the safety and management of Instrument Flight Rules (IFR) operations at the airport. This action also changes the airport name.
Amendment of Class E Airspace; Columbus, OH
This action amends Class E airspace for the Columbus, OH, area, to accommodate Area Navigation (RNAV) Standard Instrument Approach Procedures (SIAP) at Port Columbus International Airport, Columbus, OH. The FAA is taking this action to enhance the safety and management of Instrument Flight Rule (IFR) operations at the airport.
Establishment of Class E Airspace; Benton, IL
This action establishes Class E airspace at Benton, IL, to accommodate new Area Navigation (RNAV) Standard Instrument Approach Procedures (SIAP) at Benton Municipal Airport, Benton, IL. The FAA is taking this action to enhance the safety and management of Instrument Flight Rule (IFR) operations at the airport.
Establishment of Class E Airspace; Central City, NE
This action establishes Class E airspace at Central City, NE, to accommodate new Area Navigation (RNAV) Standard Instrument Approach Procedures (SIAP) at Central City MunicipalLarry Reineke Field Airport, Central City, NE. The FAA is taking this action to enhance the safety and management of Instrument Flight Rule (IFR) operations at the airport.
Revocation of Class E Airspace; Lone Star, TX
This action removes Class E airspace at Lone Star, TX. Abandonment of the former Lone Star Steel Company Airport and cancellation of all Standard Instrument Approach Procedures (SIAP) has eliminated the need for controlled airspace in the Lone Star, TX, area. The FAA is taking this action to ensure the efficient use of airspace within the National Airspace System.
Amendment of Class E Airspace; Mansfield, OH
This action amends Class E airspace at Mansfield, OH, to accommodate new Area Navigation (RNAV) Standard Instrument Approach Procedures (SIAP) at Mansfield Lahm Regional Airport, Mansfield, OH. The FAA is taking this action to enhance the safety and management of Instrument Flight Rule (IFR) operations at the airport.
Amendment of Class E Airspace; Farmington, MO
This action amends Class E airspace at Farmington, MO, to accommodate new Area Navigation (RNAV) Standard Instrument Approach Procedures (SIAP) at Farmington Regional Airport, Farmington, MO. The FAA is taking this action to enhance the safety and management of Instrument Flight Rule (IFR) operations at the airport.
Amendment of Class E Airspace; Johnson, KS
This action amends Class E airspace at Johnson, KS, to accommodate new Area Navigation (RNAV) Standard Instrument Approach Procedures (SIAP) at Stanton County Municipal Airport, Johnson, KS. Minor adjustments to geographic coordinates would also be made. The FAA is taking this action to enhance the safety and management of Instrument Flight Rule (IFR) operations at the airport.
Proposed Establishment of Class E Airspace; Lancaster, NH
This action proposes to establish Class E Airspace at Lancaster, NH to accommodate a new Area Navigation (RNAV) Global Positioning System (GPS) special Standard Instrument Approach Procedure (SIAP) serving the Weeks Medical Center Heliport. This action would enhance the safety and airspace management of Instrument Flight Rules (IFR) operations within the National Airspace System.
Amendment of Class E Airspace; Taos, NM
This action amends Class E airspace for Taos, NM. Decommissioning of the Ski non-directional beacon (NDB) at Taos Regional Airport, Taos, NM, has made this action necessary to enhance the safety and management of Instrument Flight Rule (IFR) operations at the airport.
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 the 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 737-200, -300, -400, and -500 Series Airplanes
We are adopting a new airworthiness directive (AD) for certain Model 737-200, -300, -400, and -500 series airplanes. This AD requires repetitive inspections for cracking of certain fuselage frames and stub beams, and corrective actions if necessary. This AD also provides for an optional repair, which would terminate the repetitive inspections. For airplanes on which a certain repair is done, this AD also requires repetitive inspections for cracking of certain fuselage frames and stub beams, and corrective actions if necessary. This AD results from reports of the detection of fatigue cracks at certain frame sections, in addition to stub beam cracking, caused by high flight cycle stresses from both pressurization and maneuver loads. We are issuing this AD to detect and correct fatigue cracking of certain fuselage frames and stub beams and possible severed frames, which could result in reduced structural integrity of the frames. This reduced structural integrity can increase loading in the fuselage skin, which will accelerate skin crack growth and could result in rapid decompression of the fuselage.
Airworthiness Directives; Bombardier, Inc. Model DHC-8-300 Series Airplanes
We are adopting a new airworthiness directive (AD) for the products listed above. This 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; The Boeing Company Model 747-200C, -200F, -400, -400D, and -400F Series Airplanes
The FAA is superseding an existing airworthiness directive (AD), which applies to certain Model 747-200C, -200F, -400, -400D, and -400F series airplanes. That AD currently requires repetitive inspections for cracks in the overlapping (upper) skin of the upper fastener row of the lap joints of the fuselage skin in sections 41, 42, and 46; and related investigative and corrective actions, if necessary. This new AD expands the inspection area in the existing AD, and adds a modification of certain lap joints and certain post-repair inspections of the lap joints. Accomplishing the modification would end the repetitive inspections required by the existing AD for the length of lap joint that is modified. This AD results from a structural review of affected skin lap joints for widespread fatigue damage. We are issuing this AD to prevent fatigue cracking in certain lap joints, which could result in rapid depressurization of the airplane.
Airworthiness Directives; Airbus Model A321-211, -212, -231, and -232 Airplanes
We are adopting a new airworthiness directive (AD) for the products listed above. This 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; The Boeing Company Model 747 Airplanes
We are adopting a new airworthiness directive (AD) for the products listed above. This AD requires repetitive inspections for cracking in the body skin around the aft corners of the nose wheel well; for certain airplanes, repetitive inspections for cracking in the skin splice plate at the aft corners of the nose wheel well; and related investigative and corrective actions if necessary. This AD also requires repetitive post-modification inspections for cracking in the body skin and the skin splice plate; for certain airplanes, an inspection for steel cross-shaped doublers on the larger aluminum doublers; and corrective action if necessary. This AD also requires repetitive surface high frequency eddy current (HFEC) inspections of a certain bulkhead outer chord, skin splice plate, and outer chord radius filler for cracking; repetitive detailed inspections for cracking of the bulkhead frame web and body skin; and corrective actions if necessary. This AD provides for optional terminating action for certain repetitive inspections. This AD was prompted by reports of cracking of the fuselage skin and adjacent internal skin splice plate at the left and right nose wheel well aft corners, and the outer chord of the body station (BS) 400 bulkhead. We are issuing this AD to detect and correct cracking of the fuselage skin or splice plate, which, together with cracking of the bulkhead outer chord, could result in large skin cracks and subsequent in-flight rapid decompression of the airplane.
Airworthiness Directives; The Boeing Company Model 767 Airplanes
We are adopting a new airworthiness directive (AD) for the products listed above. This AD requires a detailed inspection of the entryway door movable ceiling panel for pin migration at either end of the hinge assembly and damage to the pin; a detailed inspection for correct crimp at both ends and damage to hinge stock; a detailed inspection of the ceiling area for any visible cosmetic and/or tie-rod chafing that could be caused by a migrated hinge pin; a detailed inspection for wire damage and/or breakage; and other specified and corrective actions if necessary. This AD results from reports of fault messages caused by improperly crimped hinge pins coming into contact with wires and causing damage. We are issuing this AD to detect and correct improperly crimped hinge pins, which could damage tie rods and wire bundles, causing shorts in many systems, including the spar fuel shut-off valve, oxygen mask deployment, and burned wires, which could be an ignition source in a hidden area of the airplane.
Airworthiness Directives; Sikorsky Aircraft Corporation (Sikorsky) Model S76A, B, and C Helicopters
This amendment supersedes an existing emergency airworthiness directive (EAD) for the specified Sikorsky model helicopters. The EAD requires inspecting the LITEF Attitude Heading and Reference System (AHRS) unit of the navigation system to determine if it is at a Mod Status ``18.'' If either AHRS unit is at Mod Status ``18,'' the EAD requires installing placards on the instrument panel to prohibit single pilot instrument flight rule (IFR) and single pilot night flight and reducing airspeeds to 120 knots indicated airspeed (KIAS) if both autopilots uncouple during instrument meteorological conditions (IMC) or night flight. The EAD also requires inserting minimum crew and airspeed limitations into the Limitations section of the applicable Rotorcraft Flight Manual (RFM) to limit the minimum flight crew to 2 pilots for night flight and IFR flight and to reduce airspeed to 120 KIAS if both autopilots uncouple during IMC or night flight. This amendment contains the same requirements but draws the appropriate distinctions between IFR and IMC as used in the intended operating limitations. Also, unlike the EAD, this AD states the airspeed must be reduced to 120 KIAS if both autopilots uncouple during IMC or night flight. Further, we are removing the limitation contained in the Active Temporary Revisions relating to pilots keeping their hands and feet near the flight controls. This AD was prompted by the need to supersede the EAD to state the distinction between IFR and IMC as used in the operating limitations and to reduce the airspeed to 120 KIAS if both autopilots uncouple during IMC or night flight. The actions specified by this AD are intended to implement operating limitations based on an anomaly in the AHRS related to the 26 volt AC inverter that could result in a decoupling of both autopilots and to prevent loss of control of the helicopter during IMC and during night flight.
Airworthiness Directives; Piper Aircraft, Inc. Model PA-28-161 Airplanes
We are adopting a new airworthiness directive (AD) for the products listed above that are equipped with Thielert Aircraft Engine GmbH (TAE) Engine Model TAE-125-01 installed per Supplemental Type Certificate (STC) No. SA03303AT. This AD requires installing a full authority digital engine control (FADEC) backup battery, replacing the supplement pilot's operating handbook and FAA approved airplane flight manual, and revising the limitations section of the supplement airplane maintenance manual. This AD was prompted by an incident where an airplane experienced an in-flight engine shutdown caused by a momentary loss of electrical power to the FADEC. We are issuing this AD to prevent interruption of electrical power to the FADEC, which could result in an uncommanded engine shutdown. This failure could lead to a loss of engine power.
Airworthiness Directives; The Boeing Company Model 737-600, -700, -700C, -800, and -900 Series Airplanes
We are adopting a new airworthiness directive (AD) for certain Model 737-600, -700, -700C, -800, and -900 series airplanes. This AD requires inspections for scribe lines in the fuselage skin at lap joints, the splice strap at certain butt joints, the skin or doubler at certain approved repair doublers, and the skin at decal locations; and related investigative and corrective actions if necessary. This AD results from reports of scribe line damage found adjacent to the skin lap joints, decals, and wing-to-body fairings. 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.
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.
Establishment of Class E Airspace; Port Clarence, AK
This action corrects errors in the legal description and airport coordinates for Port Clarence Coast Guard Station (CGS) Airport, Port Clarence, AK, contained in a final rule that was published in the Federal Register.
Fifteenth Meeting: EUROCAE WG-72: RTCA Special Committee 216: Aeronautical Systems Security (Joint Meeting)
The FAA is issuing this notice to advise the public of a meeting of EUROCAE WG-72: RTCA Special Committee 216: Aeronautical Systems Security (Joint Meeting).
Third 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.
Ninth Meeting-RTCA Special Committee 220: Automatic Flight Guidance and Control
The FAA is issuing this notice to advise the public of a meeting of RTCA Special Committee 220: Automatic Flight Guidance and Control.
Special Conditions: Gulfstream Model GVI Airplane; High Incidence Protection
This action proposes special conditions for the Gulfstream GVI airplane. This airplane will have novel or unusual design features when compared to the state of technology envisioned in the airworthiness standards for transport category airplanes associated with the use of high incidence protection. The applicable airworthiness regulations do not contain adequate or appropriate safety standards for these design features. These proposed 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.
Interpretation of Rest Requirements
This action proposes to interpret the application of 14 CFR 135.263 and the rest requirements of Sec. 135.267(d) to situations in which a flight crewmember's flight time exceeds the permissible limits due to circumstances beyond his or her control. As discussed below, the FAA issued several interpretations addressing this issue in the 1990s. However, because the proposed interpretation relies heavily on a seminal FAA interpretation issued in 2000, the proposed interpretation would supersede any previous contrary interpretations of Sec. Sec. 135.263 and 135.267(d).
Airworthiness Directives; McDonnell Douglas Corporation 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 propose to adopt a new airworthiness directive (AD) for all 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. This proposed AD would require repetitive inspections for cracking of the left and right upper center skin panels of the horizontal stabilizer, and corrective action if necessary. This proposed AD was prompted by a report of a crack found in the upper skin panel at the aft inboard corner of a right horizontal stabilizer. We are proposing this AD to detect and correct cracks in the horizontal stabilizer upper center skin panel. Uncorrected cracks might ultimately lead to the loss of overall structural integrity of the horizontal stabilizer.
Airworthiness Directives; The Boeing Company Model 777-200, -200LR, -300, and -300ER Series Airplanes
We are revising an earlier proposed airworthiness directive (AD) for certain Model 777-200, -200LR, -300, and -300ER series airplanes. The original NPRM would have required doing an inspection to identify the part number of the motor operated valve (MOV) actuators of the main and center fuel tanks; replacing certain MOV actuators with new MOV actuators; and measuring the electrical resistance of the bond from the adapter plate to the airplane structure, and doing corrective actions if necessary. The original NPRM also would have required revising the Airworthiness Limitations section of the Instructions for Continued Airworthiness. The original NPRM resulted from fuel system reviews conducted by the manufacturer. This action revises the original NPRM by adding airplanes to the applicability. This action also revises the original NPRM by removing the requirement for revising the Airworthiness Limitations section of the Instructions for Continued Airworthiness. We are proposing this supplemental NPRM to prevent electrical current from flowing through an MOV actuator into a fuel tank, which could create a potential ignition source inside the fuel tank. This condition, in combination with flammable fuel vapors, could result in a fuel tank explosion and consequent loss of the airplane.
Airworthiness Directives; McDonnell Douglas Corporation Model MD-90-30 Airplanes
We propose to adopt a new airworthiness directive (AD) for all Model MD-90-30 airplanes. This proposed AD would require repetitive inspections for cracking of the left and right upper center skin panels of the horizontal stabilizer, and corrective action if necessary. This proposed AD was prompted by a report of a crack found in the upper skin panel at the aft inboard corner of a right horizontal stabilizer. We are proposing this AD to detect and correct cracks in the horizontal stabilizer upper center skin panel. Uncorrected cracks might ultimately lead to the loss of overall structural integrity of the horizontal stabilizer.
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.
Standard Instrument Approach Procedures, and Takeoff Minimums and Obstacle Departure Procedures; Miscellaneous Amendments
This rule 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.
Airworthiness Directives; General Electric Company GE90-76B; GE90-77B; GE90-85B; GE90-90B; and GE90-94B Turbofan Engines
We propose to adopt a new airworthiness directive (AD) for the products listed above. This proposed AD would require initial and repetitive fluorescent penetrant inspections (FPIs) and eddy current inspections (ECIs) of the high-pressure compressor rotor (HPCR) 8-10 stage spool, part numbers (P/Ns) 1844M90G01 and 1844M90G02, for cracks between the 9-10 stages, at each piece-part exposure. This proposed AD was prompted by cracks discovered on one HPCR 8-10 spool between the 9- 10 stages in the weld joint. We are proposing this AD to prevent failure of the HPCR 8-10 stage spool, uncontained engine failure, and damage to the airplane.
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