Department of Transportation July 2014 – Federal Register Recent Federal Regulation Documents
Results 51 - 100 of 262
Special Conditions: Airbus Model A350-900 Series Airplane; Electronic Flight-Control System: Lateral-Directional and Longitudinal Stability, and Low-Energy Awareness
These special conditions are issued for Airbus Model A350-900 series airplanes. These airplanes will have a novel or unusual design feature associated with lateral- directional and longitudinal stability, and low-energy awareness. 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.
Special Conditions: Airbus A350-900 Airplane; Crashworthiness, Emergency Landing Conditions
These special conditions are issued for Airbus Model A350-900 airplanes. These airplanes have a novel or unusual design feature associated with crashworthiness of carbon-fiber-reinforced plastic used in the construction of the fuselage. 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.
Airworthiness Directives; Bombardier, Inc. Airplanes
We propose to supersede Airworthiness Directive (AD) 2013-16- 08 for certain Bombardier, Inc. Model CL-600-2C10 (Regional Jet Series 700, 701, & 702) airplanes, Model CL-600-2D15 (Regional Jet Series 705) airplanes, and Model CL-600-2D24 (Regional Jet Series 900) airplanes. Since we issued AD 2013-16-08, we have determined that a certain part was incorrectly identified in a certain section of that AD. This proposed AD would continue to require inspection of the MLG retraction actuator components; corrective actions if necessary; and, for certain retraction actuators, installation of a new jam nut. We are proposing this AD to prevent disconnection of the MLG retraction actuator, which could result in extension of the MLG without damping, and consequent structural damage and collapse of the MLG during landing.
Reports, Forms, and Recordkeeping Requirements Agency Information Collection Activity Under OMB Review
In compliance with the Paperwork Reduction Act of 1995 (44 U.S.C. 3501 et seq.), this notice announces that the Information Collection Request (ICR) abstracted below is being forwarded to the Office of Management and Budget (OMB) for review and comment. A Federal Register Notice with a 60-day comment period was published on April 21, 2014 (76 FR 7897-7898).
Interpretation of the Special Rule for Model Aircraft
The FAA is extending the comment period on its Interpretation of the Special Rule for Model Aircraft that was published on June 25, 2014.
Special Conditions: Learjet Inc., Model LJ-200-1A10 Airplane; Composite Fuselage In-Flight Fire/Flammability Resistance
These special conditions are issued for the Learjet Inc. Model LJ-200-1A10 airplane. This airplane will have a novel or unusual design feature when compared to the state of technology envisioned in the airworthiness standards for transport category airplanes. The fuselage of the Model LJ-200-1A10 will be made of composite materials rather than conventional aluminum, which may affect fire propagation during an in-flight fire. 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.
Special Conditions: Bombardier Aerospace, Models BD-500-1A10 and BD-500-1A11 Series Airplanes; Alternate Fuel Tank Structural Lightning Protection Requirements
This action proposes special conditions for the Bombardier Aerospace Models BD-500-1A10 and BD-500-1A11 series airplanes. These airplanes will have a novel or unusual design feature that will incorporate a nitrogen generation system (NGS) for all fuel tanks that actively reduce flammability exposure within the fuel tanks significantly below that required by the fuel tank flammability regulations. Among other benefits, the NGS significantly reduces the potential for fuel vapor ignition caused by lightning strikes. The applicable airworthiness regulations do not contain adequate or appropriate safety standards for this design feature. 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.
Notice of Final Federal Agency Actions on Grand Parkway (State Highway 99), Segments H and I-1, in Texas
This notice announces actions taken by the FHWA and other Federal agencies that are final within the meaning of 23 U.S.C. 139(l)(1). The actions relate to a proposed highway project, Grand Parkway (State Highway 99) Segments H and I-1, from US 59 (N)/I-69 to I-10 (E) in Montgomery, Harris, Liberty, and Chambers Counties, Texas. Those actions grant licenses, permits, and approvals for the project.
Enhancements to the Motor Carrier Safety Measurement System (SMS) Web Site
FMCSA announces enhancements to the display of information on the public Safety Measurement System (SMS) Web site and responds to comments received in response to FMCSA's Federal Register Notice, ``Proposed Enhancements to the Motor Carrier Safety Measurement System (SMS) Public Web site'' published on November 5, 2013 The changes to the design of the SMS public Web site do not alter the SMS methodology or affect a carrier's safety rating, which is subject to 49 CFR part 385, Safety Fitness Procedures. The enhancements are a continuation of the Agency's efforts, first announced in April 2010, to provide the motor carrier industry and other safety stakeholders with more comprehensive, informative, and regularly updated safety performance data. This notice explains the Agency's modifications to the public SMS display, including four additional changes not originally proposed that resulted from comments received. The enhancements will be implemented when SMS data is updated in August 2014. The SMS display preview Web site will remain available until the SMS display changes described in this notice become operational.
Airworthiness Directives; Rolls-Royce plc Turbofan Engines
We propose to supersede airworthiness directive (AD) 98-07-07, which applies to all Rolls-Royce plc (RR) RB211-535E4 and RB211-535E4-B turbofan engines. AD 98-07-07 requires removing certain part number (P/ N) low-pressure (LP) fuel filter-to-high-pressure (HP) fuel pump tube assemblies and installing flexible LP fuel filter-to-HP fuel pump tube assemblies. Since we issued AD 98-07-07, we received additional reports of fuel leaks that have resulted in a number of engine in-flight shutdowns. This proposed AD would expand the applicability of AD 98-07- 07 to include the RB211-535E4-C-37 turbofan engine. We are proposing this AD to prevent loss of fuel supply to the engine, which could lead to an in-flight shutdown of one or more engines, loss of thrust control, and damage to the airplane.
Tire Identification and Recordkeeping
The tire identification number (TIN), which must appear on virtually all new and retreaded motor vehicle tires sold in the United States, plays an important role in identifying which tires are subject to recall and remedy campaigns for safety defects and noncompliances. This document proposes two amendments to the TIN. First, because NHTSA is running out of two-symbol codes to identify new tire plants, NHTSA is proposing to expand the first portion of the TIN, known as the manufacturer identifier, from two symbols to three for manufacturers of new tires. This amendment would substantially increase the number of unique combinations of characters that can be used to identify individual manufacturers of new tires. Second, NHTSA is proposing to standardize the length of the tire identification number to eliminate confusion that could arise from the variable length of tire identification numbers. This NPRM would standardize the length of the TIN at 13 symbols for new tires and 7 symbols for retreaded tires, making it easier to identify a TIN from which a symbol is missing.
Environmental Impact Statement for the California High-Speed Rail System Palmdale to Burbank Section, CA
FRA is issuing this notice to advise other Federal, state, and local agencies and the public that FRA and the California High-Speed Rail Authority (Authority) are amending the existing 2007 Notice of Intent for the Palmdale to Los Angeles Section and will jointly prepare an Environmental Impact Report (EIR) and Environmental Impact Statement (EIS) for the Palmdale to Burbank Section of the California High-Speed Rail (HSR) System in compliance with the California Environmental Quality Act (CEQA) and the National Environmental Policy Act of 1969 (NEPA). FRA is publishing this notice to solicit additional public and agency input into the development of the scope of the EIS and to advise the public that outreach activities conducted by the FRA and the Authority and their representatives will be considered in the preparation of the EIR/EIS. Federal cooperating agencies for the EIS are the Surface Transportation Board (STB), the U.S. Army Corps of Engineers (USACE), and the Bureau of Land Management (BLM). In March 2007, FRA and the Authority respectively issued a Notice of Preparation and a Notice of Intent for the preparation of an EIR/EIS for the Palmdale to Los Angeles Section of the Authority's proposed California HSR System. Because the Palmdale to Los Angeles Section of the HSR System will be implemented in two parts consistent with Authority's Business Plan that prioritizes an Initial Operating Section (IOS) with a southern temporary terminus in the San Fernando Valley, the FRA and Authority have determined that there are two sections of the HSR System between Palmdale and Los Angeles and they will be better evaluated in two separate EIR/EISs: Palmdale to Burbank and Burbank to Los Angeles. Each of these sections has logical termini and independent utility, as discussed further below. This notice provides information regarding the Project EIR/EIS for the Palmdale to Burbank Section of the California HSR System (proposed action). The Burbank to Los Angeles Section of the California HSR System is the subject of a separate Notice of Intent, which is being published concurrently with this notice. The preparation of the Palmdale to Burbank Section EIR/EIS will involve a robust public outreach process; the development of preliminary engineering designs; and the assessment of potential environmental effects associated with the construction, operation, and maintenance of the HSR System.
Environmental Impact Statement for the California High-Speed Rail System Burbank to Los Angeles Section, CA
FRA is issuing this notice to advise other Federal, state, and local agencies and the public that FRA and the California High-Speed Rail Authority (Authority) are amending the existing 2007 Notice of Intent for the Palmdale to Los Angeles Section and will jointly prepare an Environmental Impact Report (EIR) and Environmental Impact Statement (EIS) for the Burbank to Los Angeles Section of the California High- Speed Rail (HSR) System in compliance with the California Environmental Quality Act (CEQA) and the National Environmental Policy Act of 1969 (NEPA). FRA is publishing this notice to solicit additional public and agency input into the development of the scope of the EIS and to advise the public that outreach activities conducted by the FRA and the Authority and their representatives will be considered in the preparation of the EIR/EIS. Federal cooperating agencies for the EIS are the Surface Transportation Board (STB), the U.S. Army Corps of Engineers (USACE), and the Bureau of Land Management (BLM). In March 2007, FRA and the Authority respectively issued a Notice of Preparation and a Notice of Intent for the preparation of an EIR/EIS for the Palmdale to Los Angeles Section of the Authority's proposed California HSR System. Because the Palmdale to Los Angeles Section of the HSR System will be implemented in two parts consistent with Authority's Business Plan that prioritizes an Initial Operating Section (IOS) with a southern temporary terminus in the San Fernando Valley, the FRA and Authority have determined that there are two sections of the HSR System between Palmdale and Los Angeles and they will be better evaluated in two separate EIR/EISs: Palmdale to Burbank and Burbank to Los Angeles. Each of these sections has logical termini and independent utility, as discussed further below. This notice provides information regarding the Project EIR/EIS for the Burbank to Los Angeles Section of the California HSR System (proposed action). The Palmdale to Burbank Section of the California HSR System is the subject of a separate Notice of Intent, which is being published concurrently with this notice. The preparation of the Burbank to Los Angeles Section EIR/EIS will involve a robust public outreach process; the development of preliminary engineering designs; and the assessment of potential environmental effects associated with the construction, operation, and maintenance of the HSR System.
Revised Notice of Intent
FHWA is issuing this revised notice of intent to advise the public of modifications to the environmental review process for the US 219 Project in Garrett County, Maryland, and Somerset County, Pennsylvania. These modifications include a change in the lead Federal agency from the FHWA Pennsylvania Division Office to the FHWA DelMar Division Office and the intent of FHWA to utilize the environmental review provisions afforded under Section 6002 of the Safe, Accountable, Flexible, Efficient Transportation Equity Act: A Legacy for Users (SAFETEA-LU) and under Section 1319 of the Moving Ahead for the Progress in the 21st Century Act (MAP-21). This notice revises the NOI that was published in the Federal Register on October 17, 2003.
Proposed Amendment of Class E Airspace; Lakeport, CA
This action proposes to amend Class E airspace at Lakeport, CA. Controlled airspace is necessary to accommodate Area Navigation (RNAV) Global Positioning System (GPS) standard instrument approach procedures at Lampson Field. The FAA is proposing this action to enhance the safety and management of aircraft 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 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; Pacific Aerospace Limited Airplanes
We propose to adopt a new airworthiness directive (AD) for Pacific Aerospace Limited Model 750XL airplanes. 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 failure of the fin forward pickup due to possible fatigue cracks. We are issuing this proposed AD to require actions to address the unsafe condition on these products.
Airworthiness Directives; Sikorsky Aircraft Corporation (Sikorsky) Model Helicopters
We propose to adopt a new airworthiness directive (AD) for certain Sikorsky Model S-92A helicopters. This proposed AD would require installing a main gearbox (MGB) failed pump sensor and vacuum switch wiring, installing an MGB oil auto bypass system, activating Aircraft Management System (AMS) 7.1 software to show a new visual warning, and installing updated enhanced ground proximity warning system (EGPWS) software that includes an aural annunciation of a complete oil pressure loss condition. This proposed AD would also require inserting a Rotorcraft Flight Manual (RFM) Supplement into the applicable RFM. This proposed AD is prompted by investigation results of in-service oil leakage incidents. The proposed actions are intended to alert and prevent MGB oil loss, which could lead to failure of the MGB and subsequent loss of control of the helicopter.
Airworthiness Directives; Bombardier, Inc. Airplanes
We are revising an earlier proposed airworthiness directive (AD) for certain Bombardier, Inc. Model BD-700-1A11 airplanes. The NPRM proposed to require replacement of certain oxygen mask lanyards. The NPRM was prompted by a report that certain lanyards for the passenger oxygen masks are longer than the specified length, possibly leading to inactive oxygen masks in an emergency. This action revises the NPRM by proposing to require revised service information with corrected instructions. We are proposing this AD to detect and correct lanyards of incorrect length, which might not activate the flow of oxygen in an emergency, resulting in injury to passengers. Since these actions impose an additional burden over that proposed in the NPRM, we are reopening the comment period to allow the public the chance to comment on these proposed changes.
Airworthiness Directives; the Boeing Company Airplanes
We propose to supersede Airworthiness Directive (AD) 2002-07- 08, which applies to certain The Boeing Company Model 737 airplanes. AD 2002-07-08 currently requires repetitive inspections for cracking of the lower skin at the lower row of fasteners in the lap joints of the fuselage; repair of any cracking found; modification of the fuselage lap joints at certain locations, which terminates the repetitive inspections of the modified areas; and replacement of a certain preventive modification with an improved modification. Since we issued AD 2002-07-08, we have determined that adjacent stringers and window frames have cracked in locations outside the inspection areas addressed by AD 2002-07-08. This proposed AD would add repetitive inspections for cracking at certain window corner fastener holes, a preventive modification, post-repair/alteration and butt joint repetitive inspections, and repair if necessary. We are proposing this AD to detect and correct fatigue cracking of the fuselage lap joints, which could result in reduced structural integrity and sudden decompression of the airplane.
Airworthiness Directives; Airbus Airplanes
We propose to adopt a new airworthiness directive (AD) for all Airbus Model A319 series airplanes, Model A320-211, -212, -214, -231, - 232, and -233 airplanes, and A321 series airplanes. This proposed AD was prompted by reports that 67during a full scale fatigue test, several broken frames in certain areas of the cargo compartment have been found, especially on the cargo floor support fittings and open tack holes on the left-hand side. This proposed AD would require a rototest inspection of the open tack holes and rivet holes at the cargo floor support fittings of the fuselage, modification of the fuselage, including doing all applicable related investigative actions, and repair if necessary. We are proposing this AD to detect and correct cracking in the open tack holes and rivet holes at the cargo floor support fittings of the fuselage, which could affect the structural integrity of the airplane.
Requested Administrative Waiver of the Coastwise Trade Laws: Vessel Jennie; Invitation for Public Comments
As authorized by 46 U.S.C. 12121, the Secretary of Transportation, as represented by the Maritime Administration (MARAD), is authorized to grant waivers of the U.S.-build requirement of the coastwise laws under certain circumstances. A request for such a waiver has been received by MARAD. The vessel, and a brief description of the proposed service, is listed below.
Requested Administrative Waiver of the Coastwise Trade Laws: Vessel Gemini Girl; Invitation for Public Comments
As authorized by 46 U.S.C. 12121, the Secretary of Transportation, as represented by the Maritime Administration (MARAD), is authorized to grant waivers of the U.S.-build requirement of the coastwise laws under certain circumstances. A request for such a waiver has been received by MARAD. The vessel, and a brief description of the proposed service, is listed below.
Notice of Public Webinar on Implementation of Gas Pipeline Distribution Integrity Management Programs
Gas distribution pipeline operators were required to have prepared and implemented distribution integrity management programs (DIMP) by August 2, 2011. Federal and state regulators have been inspecting those programs and their implementation since that date. This webinar will be an opportunity for the regulators to share their experience with implementation topics with the public and the regulated community. The webinar will also include discussion of analyses of the 2013 submissions of data concerning mechanical fitting failures in gas distribution pipelines.
Airworthiness Directives; Pratt & Whitney Canada Corporation Turboprop Engines
We are adopting a new airworthiness directive (AD) for certain serial number Pratt & Whitney Canada Corporation (P&WC) model PW150A turboprop engines. This AD requires rerouting of the igniter cables and installation of new support brackets. This AD was prompted by reports of damage to a high-pressure fuel line, which could result in a high- pressure fuel leak into the engine nacelle. We are issuing this AD to prevent high-pressure fuel leaks, which could cause engine fire and damage to the engine and the airplane.
Airworthiness Directives; M7 Aerospace LLC Airplanes
We are adopting a new airworthiness directive (AD) for M7 Aerospace LLC Models SA227-AT, SA227-AC, SA227-BC, SA227-CC, and SA227- DC airplanes equipped with a bayonet shear pin main cabin door latching mechanism. This AD was prompted by fatigue cracks found in the internal door surround doubler, the fuselage external skin, and the door corner fittings at the fuselage upper forward corner of the main cabin door cutout. This AD requires repetitively inspecting the four corners of the main cabin door cutout for cracks, making necessary repairs, and reporting inspection results to M7 Aerospace LLC. We are issuing this AD to correct the unsafe condition on these products.
Airworthiness Directives; GROB-WERKE GMBH & CO KG Gliders
We are adopting a new airworthiness directive (AD) for GROB- WERKE GMBH & CO KG Models G102 STANDARD ASTIR III, G102 CLUB ASTIR III, and G102 CLUB ASTIR IIIb gliders and BURKHART GROB LUFTUND RAUMFAHRT GmbH & CO KG Models G103 TWIN II, G103A TWIN II ACRO, G103C TWIN III ACRO, and G 103 C Twin III SL gliders. 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 plastic control cable pulleys developing cracks due to aging. We are issuing this AD to require actions to address the unsafe condition on these products.
Airworthiness Directives; Airbus Airplanes
We are adopting a new airworthiness directive (AD) for all Airbus Model A318-111 and -112 airplanes; Model A319-111, -112, -113, - 114, and -115 airplanes; Model A320-111, -211, -212, and -214 airplanes; and Model A321-111, -112, -211, -212, and -213 airplanes. This AD was prompted by reports of broken aft engine mount retainers. This AD requires inspecting the aft engine mount retainers for surface finish, and for cracks and failure, and replacement if necessary. We are issuing this AD to prevent failure of retainer brackets of the aft engine mount and consequent loss of the locking feature of the nuts of the inner and outer pins; loss of the pins will result in the aft mount engine link no longer being secured to the aft engine mount.
Airworthiness Directives; Airbus Airplanes
We are adopting a new airworthiness directive (AD) for certain Airbus Model A320-111, -211, -212, and -231 airplanes. This AD was prompted by reports of broken struts of the center wing box (CWB). This AD requires a detailed inspection of the CWB struts for cracking, and repair if necessary. We are issuing this AD to detect and correct cracked or broken struts, which could result in strut failure and consequent reduced structural integrity of the airplane.
Airworthiness Directives; Airbus Airplanes
We are adopting a new airworthiness directive (AD) for certain Airbus Model A310 series airplanes. This AD was prompted by a report of an electrical arc and a hydraulic haze in the wheel bay of the left- hand main landing gear (MLG), possibly resulting from chafing between a hydraulic high pressure hose and electrical wiring of the green electrical motor pump (EMP). This AD requires modification of the electrical routing and replacement of the union elbows. We are issuing this AD to prevent chafing of hydraulic pressure hoses and electrical wiring of the green EMPs, which, in combination with a system failure, could cause an uncontrolled and undetected fire in the MLG bay.
Airworthiness Directives; Diamond Aircraft Industries GmbH Airplanes
We are superseding Airworthiness Directive (AD) 2013-24-14 for Diamond Aircraft Industries GmbH Models DA40 and DA40F 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 the fatigue strength found in the aft main spar not ensuring unlimited lifetime structural integrity. We are issuing this AD to require actions to address the unsafe condition on these products.
Notice of Intent To Release Airport Property From Quitclaim Deed; Venice Municipal Airport, Venice, FL
The FAA hereby provides notice of intent to release approximately 48 acres of airport property at Venice Municipal Airport, Venice, FL, from the conditions, reservations, and restrictions as contained in a Quitclaim Deed agreement between the FAA and the City of Venice, FL, dated June 10, 1947. The release of property will allow the City of Venice to dispose of the property for other than aeronautical purposes. The property is located at 2350 Scenic Drive along the Intracoastal Waterway Canal. The parcel is currently designated as non- aeronatutical land use. The property will be released of its federal obligations for municipal land use. The fair market value of this parcel has been determined to be $475,000.
Notice of Intent To Release Airport Property From Quitclaim Deed; Venice Municipal Airport, Venice, FL
The FAA hereby provides notice of intent to release approximately 1.166 acres of airport property at Venice Municipal Airport, Venice, FL, from the conditions, reservations, and restrictions as contained in a Quitclaim Deed agreement between the FAA and the City of Venice, FL, dated June 10, 1947. The release of property will allow the City of Venice to dispose of the property for other than aeronautical purposes. The property is located at 1600 Harbor Drive South. The parcel is currently designated as non- aeronautical land use. The property will be released of its federal obligations for commercial land use. The fair market value of this parcel has been determined to be $2,200,000.
Environmental Impact Statement; Salt Lake County, Utah
FHWA is issuing this notice to advise the public that an Environmental Impact Statement (EIS) will be prepared for proposed transportation improvements in Salt Lake County, Utah.
Agency Information Collection Activities: Requests for Comments; Clearance of Renewed Approval of Information Collection: 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 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 May 2, 2014, vol. 79, no. 85, page 25171-25172. 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.
Proposed Agency Information Collection Activities; Comment Request
In compliance with the Paperwork Reduction Act of 1995, this notice announces that the Information Collection Requests (ICRs) abstracted below are being forwarded to the Office of Management and Budget (OMB) for review and comment. The ICRs describes the nature of the information collections and their expected burdens. The Federal Register notice with a 60-day comment period soliciting comments on the following collections of information was published on May 7, 2014 (79 FR 26299).
Changing the Collective Risk Limits for Launches and Reentries and Clarifying the Risk Limit Used To Establish Hazard Areas for Ships and Aircraft
The FAA proposes to amend the collective risk limits for commercial launches and reentries. Under this proposal, the FAA would separate its expected-number-of-casualties (Ec) limits for launches and reentries. For commercial launches, the FAA proposes to aggregate the Ec posed by the following hazards: Impacting inert and explosive debris, toxic release, and far field blast overpressure. The FAA proposes to limit the aggregate Ec for these three hazards to 1 x 10-\4\. For commercial reentries, the FAA proposes to aggregate the Ec posed by debris and toxic release, and set that Ec under an aggregate limit of 1 x 10-\4\. Under the FAA's proposal, the aggregate Ec limit for both launch and reentry would be expressed using only one significant digit. The FAA also proposes to clarify the regulatory requirements concerning hazard areas for ships and aircraft. The proposed rule would require a launch operator to establish a hazard area where the probability of impact does not exceed: 0.000001 (1 x 10-\6\) for an aircraft; and 0.00001 (1 x 10-\5\) for a water-borne- vessel.
Airworthiness Directives; Airbus Airplanes
We propose to adopt a new airworthiness directive (AD) for certain Airbus Model A320-211, -212, -214, -231, -232, and -233 airplanes. This proposed AD was prompted by a report of cracking at the splice plate of a frame butt joint crossing area found during full- scale fatigue testing. This proposed AD would require repetitive inspections for cracking of both sides of the splice plate of that frame butt joint crossing area, and corrective action if necessary. This proposed AD would also provide for an optional modification, which would terminate the repetitive inspections. We are proposing this AD to detect and correct fatigue cracking of the splice plate of the frame 47 butt joint crossing area, which could result in reduced structural integrity of the airplane.
Airworthiness Directives; Airbus Airplanes
We propose to adopt a new airworthiness directive (AD) for all Airbus Model A318, A319, A320, and A321 series airplanes. This proposed AD was prompted by a determination that more restrictive airworthiness limitations are necessary. This proposed AD would require revising the maintenance or inspection program as applicable. We are proposing this AD to prevent a safety-significant latent failure (which is not annunciated) which, in combination with one or more other specific failures or events, would result in a hazardous or catastrophic failure condition.
Airworthiness Directives; The Boeing Company Airplanes
We propose to adopt a new airworthiness directive (AD) for all The Boeing Company Model MD-90-30 airplanes. This proposed AD was prompted by reports of cracks emanating from the aft-most barrel nut holes of the left and right upper rear spar caps of the horizontal stabilizer. This proposed AD would require repetitive high frequency eddy current (ETHF) inspections for cracks in the areas around the two aft-most barrel nut holes of the upper rear spar caps, and corrective action if necessary; and repetitive ETHF inspections for cracks in the areas around the two aft-most barrel nut holes of any repaired or replaced upper rear spar cap, and corrective actions if necessary. We are proposing this AD to detect and correct such cracks, which could propagate until the upper rear spar cap severs, and result in failure of the horizontal stabilizer upper center or aft skin panel and adversely affect the structural integrity of the airplane.
Airworthiness Directives; The Boeing Company Airplanes
We propose to adopt a new airworthiness directive (AD) for all 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. This proposed AD was prompted by reports of cracks emanating from the aft-most barrel nut holes of the left and right upper rear spar caps of the horizontal stabilizer. This proposed AD would require repetitive high frequency eddy current (ETHF) inspections for cracks in the areas around the two aft-most barrel nut holes of the upper rear spar caps, and corrective actions if necessary; and repetitive ETHF inspections for cracks in the areas around the two aft-most barrel nut holes of any repaired or replaced upper rear spar cap, and corrective actions if necessary. We are proposing this AD to detect and correct cracks in the horizontal stabilizer, which could propagate until an upper rear spar cap severs, and result in failure of the horizontal stabilizer upper center or aft skin panel and adversely affect the structural integrity of the airplane.
Establishment of Class E Airspace; Phoenix, AZ
This action establishes Class E airspace at the Phoenix VHF Omni-Directional Radio Range Tactical Air Navigation Aid (VORTAC), Phoenix, AZ, to facilitate vectoring of Instrument Flight Rules (IFR) aircraft under control of Albuquerque Air Route Traffic Control Center (ARTCC). This improves the safety and management of IFR operations within the National Airspace System.
Establishment of Class E Airspace; Truth or Consequences, NM
This action establishes Class E airspace at the Truth or Consequences VHF Omni-Directional Radio Range Tactical Air Navigation Aid (VORTAC), Truth or Consequences, NM, to facilitate vectoring of Instrument Flight Rules (IFR) aircraft under control of Albuquerque Air Route Traffic Control Center (ARTCC). This improves the safety and management of IFR operations within the National Airspace System.
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