Department of Transportation 2012 – Federal Register Recent Federal Regulation Documents
Results 551 - 600 of 2,753
Airworthiness Directives; The Boeing Company Airplanes
We propose to supersede an existing airworthiness directive (AD) that applies to all The Boeing Company Model 727 airplanes. The existing AD currently requires repetitive inspections of the in-tank fuel boost pump wiring to detect chafing of the wire insulation, evidence of electrical arcing, or arc-through of the conduit wall, and applicable corrective action; and installation of sleeving over the in- tank fuel boost pump wires. The existing AD also requires repetitive inspections for damage of a certain electrical wire and sleeve, and arcing damage of the conduit and signs of fuel leakage into the conduit; applicable investigative and corrective actions; and repetitive engine fuel suction feed operational tests. Since we issued that AD, we received a report of damage found to the sleeve, jacket, and insulation on an electrical wire during a repetitive inspection. This proposed AD would require replacement of the wire bundles for the wing and center fuel boost pumps with new, improved wire bundles, installation of convoluted liners, and related investigative and corrective actions if necessary. This proposed AD would also require replacement of the fuel quantity indicating system (FQIS) wires with new, improved wires; a low-frequency eddy current inspection for cracking; and repair if necessary. This proposed AD would also require revising the maintenance program to incorporate changes to the airworthiness limitations section. We are proposing this AD to detect and correct chafing of the fuel boost pump electrical wiring and leakage of fuel into the conduit, and to prevent electrical arcing between the wiring and the surrounding conduit, which could result in arc-through of the conduit, and consequent fire or explosion of the fuel tank.
Notice of Final Federal Agency Actions on Proposed Highway in Illinois
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, Willow Road (FAP 305) between Illinois Route 43 (Waukegan Road) and Interstate 94 (Edens Expressway) in Cook County, Illinois. Those actions grant licenses, permits, and approvals for the project.
Voluntary Licensing of Amateur Rocket Operations; Correction; Delay of Effective Date
This action delays the effective date for a direct final rule that was published on August 22, 2012. In that rule, the FAA amends the scope of its regulations to allow launch operators that conduct certain amateur rocket launches an opportunity to voluntarily apply for a commercial space transportation license or experimental permit. The FAA has received several adverse comments to this rule, and delays the effective date to allow time for adequate analysis and a final determination. This document also corrects the regulatory identification number on the original publication.
Notice of Final Federal Agency Actions on Proposed Highway in California
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 the proposed State Route 11 and Otay Mesa East Land Port of Entry in the City and County of San Diego, State of California. These actions grant licenses, permits, and approvals for the project.
Qualification of Drivers; Exemption Applications; Diabetes Mellitus
FMCSA announces its decision to exempt 17 individuals from its rule prohibiting persons with insulin-treated diabetes mellitus (ITDM) from operating commercial motor vehicles (CMVs) in interstate commerce. The exemptions will enable these individuals to operate CMVs in interstate commerce.
Airworthiness Directives; The Boeing Company Airplanes
We propose to supersede two existing airworthiness directives (AD) that apply to certain The Boeing Company Model 737-100, -200, - 200C, -300, -400, and -500 series airplanes. The existing AD, for certain Model 737-100, -200, and -200C series airplanes currently requires repetitive inspections of the aft end of each inboard flap track of the wing outboard flap, and corrective actions, if necessary. The existing AD, for certain Model 737-100, -200, -200C, -300, -400, and -500 series airplanes requires repetitive inspections for cracks in the upper flange of the inboard track at the rear spar attachments of each outboard flap, and corrective action, if necessary. That AD also requires, for certain airplanes, repetitive inspections for discrepancies of the rear spar attachments and cracks in the upper flange of the inboard track at the rear spar attachment of each outboard flap, and eventual rework of the flap track assembly and rear spar attachments, including replacement of the flap track with a new track, if necessary. Since we issued those ADs, we have received reports that the work sequence and procedures used during track installation could also cause loose or cracked tracks. This proposed AD would require an inspection for damage and stop-drill repairs along the flap track; an inspection for damage, cracking, and stop-drill repairs along the track webs; and an inspection for damage of the flap track web and flanges, and corrective actions if necessary. This proposed AD would also require, for certain airplanes, an inspection for signs of movement between the tapered shim and anti-fret strip, installation of the anti-fret strip, and corrosion of the tapered shim and anti-fret strip; an inspection for signs of movement, cracks and corrosion where the track is attached to the wing rear spar; an inspection for cracking of the outboard edge of the track; an inspection for cracking of the inner edge of the track; and related investigative and corrective actions if necessary. This proposed AD would also require repetitive overhauls of the flap track and repetitive post-overhaul inspections and corrective actions if necessary; an inspection to determine the part number of the flap track assembly, and replacement of affected parts if necessary; and would also add airplanes to the applicability. We are proposing this AD to detect and correct cracking and damage in the flap track, which could cause loss of the outboard trailing edge flap and consequent reduced controllability of the airplane.
Airworthiness Directives; DASSAULT AVIATION Airplanes
We propose to adopt a new airworthiness directive (AD) for certain DASSAULT AVIATION Model FALCON 2000, FALCON 2000EX, MYSTERE- FALCON 900 and FALCON 900EX airplanes; and all Model MYSTERE-FALCON 50 airplanes. This proposed AD was prompted by reports that collapse of the main landing gear (MLG) could cause wing tank structure failure, which could result in fuel spillage and consequent fire hazard. This proposed AD would require modification of the wing fuel tanks in the area of the wheel well. We are proposing this AD to prevent fuel spillage in the event of a MLG collapse, and consequent fire hazard.
Airworthiness Directives; The Boeing Company Airplanes
We propose to adopt a new airworthiness directive (AD) for certain The Boeing Company Model 727 airplanes; Model 737-100, -200, and -200C series airplanes; and Model 747-100, -100B, -100B SUD, -200B, -200C, -200F, -300, -400, -400D, -400F, 747SR, and 747SP series airplanes. This proposed AD was prompted by a report of an activation of the control column shaker during takeoff. This proposed AD would require performing a general visual inspection to determine if a certain angle of attack (AOA) sensor with a paddle type vane is installed, and, for affected sensors, performing an operational test of the stall warning system, and replacing the AOA sensor with a new sensor if necessary. We are proposing this AD to prevent erroneous activation of the control column shaker during takeoff, which could result in runway overrun, failure to clear terrain or obstacles after takeoff, or reduced controllability of the airplane.
Airworthiness Directives; The Boeing Company Airplanes
We are revising an earlier proposed airworthiness directive (AD) for certain Model 737-200, -200C, -300, -400, and -500 series airplanes. That proposed AD would have superseded an existing AD that applies to certain The Boeing Company Model 737-200, -200C, -300, -400, and -500 series airplanes. The existing AD currently requires repetitive inspections to find fatigue cracking of certain upper and lower skin panels of the fuselage, and follow-on and corrective actions if necessary. The existing AD also includes a terminating action for the repetitive inspections of certain modified or repaired areas only. That NPRM proposed to add new inspections for cracking of the fuselage skin along certain chem-milled lines, and corrective actions if necessary. That NPRM also proposed to reduce certain thresholds and intervals required by the existing AD. This action revises that NPRM by reducing the proposed repetitive inspection intervals. We are proposing this supplemental NPRM to detect and correct fatigue cracking of the skin panels, which could result in sudden fracture and failure of the skin panels of the fuselage, and consequent rapid decompression of the airplane. Since these actions impose an additional burden over that proposed in the previous NPRM, we are reopening the comment period to allow the public the chance to comment on these proposed changes.
Notice of Intent To Rule on Request To Release Airport Property at the McKellar-Sipes Regional Airport, Jackson, TN
The Federal Aviation Administration is requesting public comment on the release of land at the McKellar-Sipes Regional Airport, in the city of Jackson, TN. This property, approximately 4.0 acres, will change to a non-aeronautical use. This action is taken under the provisions of 49 U.S.C. Section 47107(h)(2) requiring public notice before a waiver of property designated to be used for an aeronautical purpose is granted.
Notice of Intent To Rule on Request To Release Airport Property at the Smyrna-Rutherford County Airport, Smyrna, TN
The Federal Aviation Administration is requesting public comment on the release of land at the Smyrna-Rutherford County Airport, Smyrna, Tennessee. This property, approximately 166 acres on the east side of the airport, and 56 acres on the west side of the airport will change to a non-aeronautical use. This action is taken under the provisions of 49 U.S.C. Section 47107(h)(2) requiring public notice before a waiver of property used for an aeronautical purpose is granted.
Airworthiness Directives; Bombardier, Inc. Airplanes
We are adopting a new airworthiness directive (AD) for certain Bombardier, Inc. Model DHC-8-400 series airplanes. This AD was prompted by reports of chafing between the wire harness along the wing leading edge and the inboard end rib of the wing leading edge due to insufficient clearance. This AD requires inspecting the wire harness along the leading edge for chafing damage, and repair if necessary; and relocating and installing new anchor nuts. We are issuing this AD to detect and correct chafing damage to the wire harness along the wing leading edge, which if not corrected, could lead to the loss of the airframe de-icing system, and could become a possible ignition source causing fire.
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: Request for Comments for a New Information Collection
FHWA invites public comments about our intention to request the Office of Management and Budget's (OMB) approval for a new information collection, which is summarized below under SUPPLEMENTARY INFORMATION. We published a Federal Register Notice with a 60-day public comment period on this information collection on June 22, 2012. We are required to publish this notice in the Federal Register by the Paperwork Reduction Act of 1995.
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.
Environmental Impact Statement: Travis County, TX
Pursuant to 40 CFR 1508.22 and 43 TAC Sec. 2.5(e)(2), the FHWA, Texas Department of Transportation (TxDOT), and Central Texas Regional Mobility Authority (Mobility Authority) are issuing this notice to advise the public that an environmental impact statement (EIS) will be prepared for a transportation project in Travis County, Texas. The proposed project would improve US 290 from State Loop 1 (SL1 [Mopac]) to Ranch-to-Market Road (RM) 1826, in Travis County, Texas, a distance of approximately 3.6 miles. The EIS will also include improvements to SH 71 from Silvermine Drive to US 290 in Travis County, a distance of approximately 1.2 miles.
Airworthiness Directives; Turbomeca S.A. Turboshaft Engines
We propose to adopt a new airworthiness directive (AD) for Turbomeca S.A. Arriel 2D turboshaft engines. This proposed AD was prompted by a low fuel pressure event caused by a deterioration and a loss of the low-pressure drive function within the hydro-mechanical metering unit (HMU). This proposed AD would require replacing the HMU at a reduced life. We are proposing this AD to prevent an uncommanded in-flight shutdown of the engine, and possible loss of the helicopter.
Proposed Amendment of Class E Airspace; Astoria, OR
This action proposes to modify Class E airspace at Astoria Regional Airport, Astoria, OR. Controlled airspace is necessary to accommodate aircraft using Area Navigation (RNAV) Global Positioning System (GPS) standard instrument approach procedures at Astoria Regional Airport. The FAA is proposing this action to enhance the safety and management of aircraft operations at the airport.
Proposed Amendment of Class E Airspace; Savoonga, AK
This action proposes to modify Class E airspace at Savoonga Airport, AK, to accommodate aircraft using new Area Navigation (RNAV) Global Positioning System (GPS) standard instrument approach procedures at Savoonga Airport. The FAA is proposing this action to enhance the safety and management of aircraft operations at the airport.
Establishment of Class E Airspace; Deer Lodge, MT
This action establishes Class E airspace at Deer Lodge-City- County Airport, Deer Lodge, MT. Controlled airspace is necessary to accommodate aircraft using new Area Navigation (RNAV) Global Positioning System (GPS) standard instrument approach procedures at Deer Lodge-City-County Airport. This improves the safety and management of Instrument Flight Rules (IFR) operations at the airport.
Agency Information Collection Activities; Comment Request
In compliance with the Paperwork Reduction Act of 1995, this notice announces that the Information Collection Requirements (ICRs) abstracted below have been forwarded to the Office of Management and Budget (OMB) for review and comment. The ICRs describe 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 August 6, 2012, volume 77, page number 151.
Agency Information Collection Activity Under OMB Review
The Federal Transit Administration invites public comment about our intention to request the Office of Management and Budget's (OMB) approval to renew the following information collection: Transit Research, Development, Demonstration and Deployment Projects The information collected is necessary to determine eligibility of applicants and ensure mass transportation service at a minimum cost. The Federal Register notice with a 60-day comment period soliciting comments was published on July 9, 2012 (Citation 77 FR 40409). No comments were received from that notice.
Special Conditions: Eurocopter France (ECF) Model EC225LP Helicopter, Installation of a Search and Rescue (SAR) Automatic Flight Control System (AFCS)
These special conditions amend and supersede those final special conditions No. 29-022-SC, for the ECF model EC225LP helicopter, which were published in the Federal Register on November 6, 2008 (73 FR 65968). A notice proposing this amendment was published December 20, 2010 (75 FR 79312). This amendment modifies the original final special conditions to address comments received and to clarify the intent of some of the requirements. This helicopter, as modified by ECF, will have novel or unusual design features associated with installing an optional SAR AFCS. The applicable airworthiness regulations do not contain adequate or appropriate safety standards for these design features. 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.
Public Notice for Waiver of Aeronautical Land-Use Assurance: Bolton Field Airport; Columbus, OH
The Federal Aviation Administration (FAA) is considering a proposal to change a portion of the Bolton Field Airport from aeronautical use to non-aeronautical use and to authorize the sale of the airport property. The proposal consists of the sale of unimproved land owned by the Columbus Regional Airport Authority (CRAA) for use as an office/warehouse/distribution facility. The CRAA has requested from FAA a ``Release from Federal agreement obligated land covenants'' to sell 60.282 acres of property acquired by the CRAA with Federal funding under Grant Number 8-39-0026-01. The above mentioned land is not needed for aeronautical use, as shown on the Airport Layout Plan. There are no impacts to the airport by allowing the CRAA to dispose of the property. Approval does not constitute a commitment by the FAA to financially assist in the disposal of the 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.
State Graduated Driver Licensing Incentive Grant
This NPRM seeks public comment on the minimum qualification criteria for the State Graduated Driver Licensing (GDL) Incentive Grant program authorized under the Moving Ahead for Progress in the 21st Century Act (MAP-21). MAP-21 authorizes grants for States that implement multi-stage licensing systems that require novice drivers younger than 21 years of age to comply with the requirements and process set forth below before receiving an unrestricted driver's license. NHTSA will consider comments in developing a rule implementing the GDL requirements under MAP-21.
Distracted Driving Grant Program
Pursuant to the Moving Ahead for Progress in the 21st Century Act (MAP-21), the Department of Transportation (DOT) announced the availability of funding authorized for distracted driving grants on August 24, 2012. In this notice, DOT is extending the application submission deadline announced in the notice of availability of funding to February 28, 2013.
Airworthiness Directives; The Boeing Company Airplanes
We are superseding an existing airworthiness directive (AD) for certain The Boeing Company Model 747 airplanes. That AD currently requires repetitive visual inspections around the bushings of the wing landing gear (WLG) beam outboard end fittings for corrosion, and rework if necessary; and ultrasonic inspections for cracks of the outboard end fittings of the WLG support beams, and rework if necessary. This new AD adds airplanes and adds repetitive inspections of the outboard end fitting of the left and right WLG support beams for cracks and corrosion, and corrective actions if necessary. This AD was prompted by new reports of corrosion damage to the end fittings of the WLG support beams, and one report of subsequent cracking in the end fittings. We are issuing this AD to detect and correct corrosion and subsequent cracking in the outboard end fittings, which could result in separation of the fitting and damage to adjacent flight control cables and hydraulic systems and consequent reduced controllability of the airplane.
Airworthiness Directives; The Boeing Company Airplanes
We are adopting a new airworthiness directive (AD) for certain The Boeing Company Model 737-100, -200, and -200C series airplanes. This AD was prompted by a report of a severed upper butt strap, and cracks in the forward skin and bonded doubler, on one airplane. This AD requires repetitive inspections for cracks and a chemical spot test in the area of station (STA) 908, and related investigative and corrective actions, if necessary. For certain airplanes, this AD requires an inspection and modification. We are issuing this AD to prevent cracks at the adjacent mating skins (forward and aft), which could initiate just above stringers S-4R and S-4L; and could grow and result in a decompression event.
Airworthiness Directives; Alpha Aviation Concept Limited Airplanes
We are adopting a new airworthiness directive (AD) for Alpha Aviation Concept Limited Model R2160 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 possible installation of non-conforming air filter elements that are not fitted with metallic mesh and could internally collapse resulting in disruption of the powerplant operation. We are issuing this AD to require actions to address the unsafe condition on these products.
Hazardous Materials: Minor Editorial Corrections and Clarifications (RRR)
This final rule corrects editorial errors, makes minor regulatory changes and, in response to requests for clarification, improves the clarity of certain provisions in the Hazardous Materials Regulations. The intended effect of this rule is to enhance the accuracy and reduce misunderstandings of the regulations. The amendments contained in this rule are non-substantive changes and do not impose new requirements.
Airworthiness Directives; BAE Systems (Operations) Limited Airplanes
We propose to adopt a new airworthiness directive (AD) for all BAE Systems (Operations) Limited Model BAe 146, and Avro 146-RJ series airplanes. This proposed AD was prompted by a report of loss of the end caps on the anti-icing piccolo tube of the wing leading edge. This proposed AD would require a detailed inspection of the end caps on the anti-icing piccolo tube for lost or loose end caps, and replacing or repairing the end caps if necessary. We are proposing this AD to detect and correct lost and loose end caps on the anti-icing piccolo tube, and ice accretion on the wing leading edge or run-back ice, which could lead to a reduction in the stall margin on approach and loss of controllability of the airplane.
Airworthiness Directives; Airbus Airplanes
We propose to adopt a new airworthiness directive (AD) for certain Airbus Model A319-112, -113, and -132 airplanes; Model A320- 211, -212, -214, -231, and -232 airplanes; and Model A321-111 and -131 airplanes. This proposed AD was prompted by a report of two fatigue cracks on the left-hand and right-hand sides of the continuity fittings at the front windshield lower framing on a Model A319 airplane. This proposed AD would require a high frequency eddy current (HFEC) inspection for any cracking on the left-hand and right-hand sides of the windshield central lower node continuity fittings, and repair if necessary. We are proposing this AD to detect and correct cracking of the windshield central lower node continuity fittings, which could reduce the structural integrity of the airplane.
Airworthiness Directives; Airbus Airplanes
We propose to supersede an existing airworthiness directive (AD) that applies to certain Airbus Model A319, A320, and A321 airplanes. The existing AD currently requires installing spacer assemblies at the attachment points of the YZ-latches of the cargo loading system (CLS) in the forward and aft cargo compartments, as applicable. Since we issued that AD, we have received reports that the installation has been applied only on one of the lower deck cargo holds, instead of on both forward and aft cargo holds, and that some airplanes could have installed the affected YZ-latches through the instructions of the cargo conversion manual. This proposed AD would require modifying the attachment points of fixed YZ-latches of the CLS lower deck cargo holds on those airplanes on which one or both lower deck cargo holds have not been modified. We are proposing this AD to prevent failure of the attachment points of the YZ-latches, which could result in unrestrained cargo causing damage to the fire protection system, hydraulic system, electrical wiring, or other equipment located in the forward and aft cargo compartments. This damage could adversely affect the continued safe flight of the airplane.
Airworthiness Directives; Airbus Airplanes
We propose to supersede an existing airworthiness directive (AD) that applies to certain Airbus Model A319 and A320 airplanes. The existing AD currently requires repetitive detailed inspections to detect cracks in the keel beam side panels, and repair if necessary. Since we issued that AD, we have received reports of access difficulties. Additionally, we have determined that the detailed inspection is not sufficient to mitigate the unsafe condition. This proposed AD would require repetitive eddy current inspections for cracking in the keel beam side panels, and corrective actions if necessary. We are proposing this AD to detect and correct fatigue cracks on the side panels of the keel beams, which could result in reduced structural integrity of the airplane.
Proposed Establishment Class E Airspace; Kasigluk, AK
This action proposes to establish Class E airspace at Kasigluk Airport, Kasigluk, AK, to accommodate aircraft using a new Area Navigation (RNAV) Global Positioning System (GPS) standard instrument approach procedures at the airport. The FAA is proposing this action to enhance the safety and management of aircraft operations at the airport.
Agency Information Collection Activities: Request for Comments for a New Information Collection
FHWA invites public comments about our intention to request the Office of Management and Budget's (OMB) approval for a new information collection, which is summarized below under SUPPLEMENTARY INFORMATION. We published a Federal Register Notice with a 60-day public comment period on this information collection on June 22, 2012. We are required to publish this notice in the Federal Register by the Paperwork Reduction Act of 1995.
Airworthiness Directives; Airbus Airplanes
We propose to adopt a new airworthiness directive (AD) for certain Airbus Model A318, A319, A320, and A321 series airplanes. This proposed AD was prompted by a report of an uncommanded nose landing gear (NLG) retraction. This proposed AD would require installing a power interruption protection circuit for the landing gear control interface unit (LGCIU). We are proposing this AD to prevent untimely unlocking and/or retraction of the NLG, which, while on the ground, could result in injury to ground personnel and damage to the airplane.
Airworthiness Directives; Airbus Airplanes
We are revising an earlier proposed airworthiness directive (AD) that would supersede an existing AD for certain Airbus Model A318, A319, A320, and A321 series airplanes. For certain airplanes, that NPRM proposed repetitive inspections for cracks of the forward lug of each main landing gear (MLG) support rib 5 fitting and repair if necessary; and removing Model 318 airplanes from the applicability. That NPRM was prompted by reports of cracks found in the forward lug of the MLG support rib 5 fitting. This action revises that NPRM by adding Model A318 airplanes and others to the applicability; and requiring repetitive detailed inspections for cracks of the MLG support 5 fitting, and repair of any cracks. We are proposing this AD to prevent cracking in the forward lug of the MLG, which could result in failure of the lug and consequent collapse of the MLG during takeoff or landing. 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; DASSUALT AVIATION Airplanes
We propose to adopt a new airworthiness directive (AD) for all DASSAULT AVIATION Model MYSTERE-FALCON 50 airplanes. This proposed AD was prompted by a manufacturer revision to the airplane maintenance manual (AMM) that introduces new or more restrictive maintenance requirements and airworthiness limitations. This proposed AD would revise the maintenance program to incorporate new or revised maintenance requirements and airworthiness limitations. We are proposing this AD to prevent reduced structural integrity of the airplane.
Motor Carrier Safety Advisory Committee (MCSAC): Public Subcommittee Meeting
FMCSA announces that the CSA Subcommittee of the MCSAC will hold a meeting on TuesdayWednesday, October 16-17, 2012. Established at the August 2012 meeting of the MCSAC in accordance with Task 12-03, the subcommittee will provide the MCSAC with concepts, ideas, and recommendations on the CSA program. The entire subcommittee meeting will be open to the public, with a public comment period to occur during the last one-half hour of each day.
Procedures for Transportation Workplace Drug and Alcohol Testing Programs: 6-acetylmorphine (6-AM) Testing
This rule adopts as final, without change, a May 4, 2012, interim final rule (IFR) which no longer requires laboratories and Medical Review Officers (MRO) to consult with one another regarding the testing for the presence of morphine when the laboratory confirms the presence of 6-acetylmorphine (6-AM). Also, laboratories and MROs will no longer need to report 6-AM results to the Office of Drug and Alcohol Policy and Compliance (ODAPC). This rule also responds to comments on the IFR.
Airworthiness Directives; The Boeing Company Airplanes
We are adopting a new airworthiness directive (AD) for certain The Boeing Company Model 737 airplanes. This AD was prompted by a report of a flightcrew not receiving an aural warning during a lack of cabin pressurization event. This AD requires incorporating design changes to improve the reliability of the cabin altitude warning system by installing a redundant cabin altitude pressure switch, replacing the aural warning module (AWM) with a new or reworked AWM, and changing certain wire bundles or connecting certain previously capped and stowed wires as necessary. For certain airplanes, this AD also requires prior or concurrent incorporation of related design changes by modifying the instrument panels, installing light assemblies, modifying the wire bundles, and installing a new circuit breaker, as necessary. We are issuing this AD to prevent the loss of cabin altitude warning, which could delay flightcrew recognition of a lack of cabin pressurization, and could result in incapacitation of the flightcrew due to hypoxia (a lack of oxygen in the body), and consequent loss of control of the airplane.
Airworthiness Directives; Pratt & Whitney (P&W) Division Turbofan Engines
We are adopting a new airworthiness directive (AD) for certain P&W PW4000 series turbofan engines. This AD was prompted by reports of 3rd and 4th stage vane fractures in the low-pressure turbine (LPT) of certain PW4000-94'' and PW4000-100'' turbofan engines. This AD requires dimensional inspections of LPT 3rd stage vanes and the rear turbine case, inspection of LPT 4th stage vanes at the next LPT overhaul and removal of vanes with non-conforming airfoil fillet radii and vanes with more than one strip and recoat repair. This AD also requires disassembly and reassembly of the 2nd stage high-pressure turbine (HPT) rotor and 3rd stage LPT rotor at the next HPT and LPT overhauls. We are issuing this AD to prevent 3rd and 4th stage vane fractures in the LPT, damage to the LPT rotor, uncontained engine failure, and damage to the airplane.
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