Department of Transportation February 21, 2012 – Federal Register Recent Federal Regulation Documents
Results 1 - 11 of 11
Airworthiness Directives; Fokker Services B.V. Airplanes
We propose to supersede an existing airworthiness directive (AD) that applies to all Fokker Services B.V. Model F.28 Mark 0070 and 0100 airplanes. The existing AD currently requires revising the airworthiness limitations section (ALS) of the instructions for continued airworthiness for certain airplanes, and the FAA-approved maintenance program for certain other airplanes, to incorporate new limitations for fuel tank systems. Since we issued that AD, Fokker Services B.V. has revised a Fokker 70/100 maintenance review board (MRB) document with revised limitations, tasks, thresholds, and intervals. This proposed AD would revise the maintenance program to incorporate the limitations, tasks, thresholds, and intervals specified in that Fokker MRB document. We are proposing this AD to reduce the potential of ignition sources inside fuel tanks, which, in combination with flammable fuel vapors, could result in fuel tank explosions and consequent loss of the airplane.
Clarification on the Division 1.1 Fireworks Approvals Policy
In this document, PHMSA is responding to comments received from its initial Notice No. 11-6 clarifying PHMSA's policy regarding the fireworks approvals program. Furthermore, in this document PHMSA is restating its policy clarification that it will accept only those classification approval applications for Division 1.1 fireworks that have been examined and assigned a recommended shipping description, division, and compatibility group by a DOT-approved explosives test laboratory, or those that have been issued an approval for the explosive by the competent authority of a foreign government acknowledged by PHMSA's Associate Administrator. This policy clarification is intended to enhance safety by ensuring that fireworks transported in commerce meet the established criteria for their assigned classification, thereby minimizing the potential shipment of incorrectly classified or forbidden fireworks.
Airworthiness Directives; Rolls-Royce Deutschland Ltd & Co KG (RRD) Turbofan Engines
We propose to rescind an airworthiness directive (AD) for RRD BR700-715A1-30, BR700-715B1-30, and BR700-715C1-30 turbofan engines. The existing AD resulted from the need to reduce the published life limits of high-pressure (HP) turbine stage 1 discs, part numbers (P/Ns) BRH20130 and BRH20131, and HP turbine stage 2 discs, P/Ns BRH19423 and BRH19427. Since we issued the existing AD, RRD has revised the approved published life limits of these parts to the same or higher limits as originally certified.
Airworthiness Directives; Lycoming Engines Reciprocating Engines
We are adopting a new airworthiness directive (AD) for certain Lycoming Engines reciprocating engines. This AD was prompted by a report of a ``machined-from-billet'' HA-6 carburetor having a loose mixture control sleeve that rotated in the carburetor body causing restriction of fuel and power loss. This AD requires removing certain ``machined-from-billet'' Volare LLC (formerly Precision Airmotive Corporation, formerly Facet Aerospace Products Company, formerly Marvel-Schebler (BorgWarner)) HA-6 carburetors, inspecting for a loose mixture control sleeve or for a sleeve that may become loose, repairing the carburetor, or replacing the carburetor with one eligible for installation. We are issuing this AD to prevent engine in-flight shutdown, power loss, and reduced control of the airplane.
Airworthiness Directives; Honeywell International Inc. Turbofan Engines
We propose to adopt a new airworthiness directive (AD) for certain Honeywell International Inc. models TFE731-4, -4R, -5, -5R, - 5AR, and -5BR series turbofan engines. This proposed AD was prompted by a report of a rim/web separation of a first stage low-pressure turbine (LPT1) rotor assembly. This proposed AD would require replacing affected LPT1 rotor assemblies with LPT1 rotor assemblies eligible for installation. We are proposing this AD to prevent uncontained disk separation, leading to fuel tank penetration, fire, personal injury, and damage to the airplane.
Airworthiness Directives; Turbomeca S.A. Turboshaft Engines
We propose to adopt a new airworthiness directive (AD) for Turbomeca S.A. Arriel 2C1, 2C2, and 2S2 turboshaft engines. This proposed AD was prompted by a report of a helicopter experiencing a digital engine control unit (DECU) malfunction during flight. We are proposing this AD to prevent loss of automatic control on one or both engines installed on the same helicopter, which could result in an uncommanded in-flight engine shutdown, forced autorotation landing, or accident.
Amendment of Class E Airspace; Colorado Springs, CO
This action amends Class E airspace at City of Colorado Springs Municipal Airport, Colorado Springs, CO. Decommissioning of the Black Forest Tactical Air Navigation System (TACAN) has made this action necessary for the safety and management of Instrument Flight Rules (IFR) operations at the airport. This action also adjusts the geographic coordinates of the airport.
Proposed Modification of VOR Federal Airways V-10, V-12, and V-508 in the Vicinity of Olathe, KS
This action proposes to modify three VHF Omnidirectional Range (VOR) Federal airways V-10, V-12, and V-508 in the vicinity of Olathe, KS. The FAA is proposing this action to adjust the airway route structure due to the planned decommissioning of the Johnson County VOR/ DME navigation aid located on Johnson County Executive Airport, Olathe, KS.
Amendment of Federal Airways; Alaska
This technical amendment corrects a final rule published in the Federal Register of April 28, 2011; subsequently delayed in the Federal Register of June 16, 2011; and announced with a new effective date in the Federal Register of December 9, 2011. In that rule, the route description of VHF Omnidirectional Range (VOR) Federal airway V- 388 was inadvertently reversed. This technical amendment corrects that error.
Amendment of Class D and Class E Airspace, and Establishment of Class E Airspace; Bozeman, MT
This action modifies Class D and Class E airspace at Bozeman, Gallatin Field Airport, Bozeman, MT, to accommodate aircraft using Instrument Landing System (ILS) Localizer (LOC) standard instrument approach procedures at Bozeman, Gallatin Field Airport. This action also establishes Class E En Route Domestic airspace to facilitate vectoring of Instrument Flight Rules (IFR) operations at the airport. This action, initiated by the biennial review of the Bozeman airspace area, enhances the safety and management of aircraft operations at the airport.
Modification of Area Navigation Route T-288; WY
This action modifies area navigation (RNAV) route T-288 by extending the route westward from the Rapid City, SD, VORTAC to the Gillette, WY, VOR/DME. This extension enhances the efficiency and safety of the National Airspace System (NAS) by supplementing the existing VOR Federal airway structure in that area.
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