Federal Aviation Administration March 23, 2012 – Federal Register Recent Federal Regulation Documents

Government/Industry Aeronautical Charting Forum Meeting: Correction
Document Number: 2012-7058
Type: Notice
Date: 2012-03-23
Agency: Federal Aviation Administration, Department of Transportation
This Notice is a correction to a document published by the same title on March 7, 2012 (FR Doc. 2012-5923), page 13683. In that document the SUPPLEMENTARY INFORMATION was inadvertently left out. This notice announces the bi-annual meeting of the Federal Aviation Administration (FAA) Aeronautical Charting Forum (ACF) to discuss informational content and design of aeronautical charts and related products, as well as instrument flight procedures development policy and design criteria.
Airworthiness Directives; Burkhart GROB Luft- und Raumfahrt GmbH Powered Sailplanes
Document Number: 2012-7012
Type: Proposed Rule
Date: 2012-03-23
Agency: Federal Aviation Administration, Department of Transportation
We propose to adopt a new airworthiness directive (AD) for Burkhart GROB Luft- und Raumfahrt GmbH Models GROB G 109 and GROB G 109B powered sailplanes. 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 excessive corrosion on the nose plate in the vertical stabilizer, which could cause the vertical stabilizer nose plate to fail. We are issuing this proposed AD to require actions to address the unsafe condition on these products.
Airworthiness Directives; Pratt & Whitney Division Turbofan Engines
Document Number: 2012-6996
Type: Rule
Date: 2012-03-23
Agency: Federal Aviation Administration, Department of Transportation
We are adopting a new airworthiness directive (AD) for all Pratt & Whitney PW4050, PW4052, PW4056, PW4060, PW4060A, PW4060C, PW4062, PW4062A, PW4152, PW4156, PW4156A, PW4158, PW4160, PW4460, PW4462, and PW4650 turbofan engines, including models with any dash number suffix. This AD was prompted by reports of five engine in-flight shutdowns and seven unplanned engine removals. This AD requires inspections, cleaning, and engine modifications to address coking in the No. 4 bearing compartment and in the oil pressure and scavenge tubes. We are issuing this AD to prevent an engine fire, a fractured fan drive shaft, and damage to the airplane.
Airworthiness Directives; Rolls-Royce Deutschland Ltd & Co KG Turbofan Engines
Document Number: 2012-6995
Type: Rule
Date: 2012-03-23
Agency: Federal Aviation Administration, Department of Transportation
We are adopting a new airworthiness directive (AD) for certain Rolls-Royce Deutschland (RRD) Models Tay 611-8 and Tay 611-8C turbofan engines. This AD requires replacement of the high-pressure (HP) turbine spanner retaining nut. This AD was prompted by the discovery that certain HP turbine spanner retaining nuts were improperly heat treated after application of silver plating. We are issuing this AD to prevent failure of the HP turbine stage 2 disc, uncontained engine failure, and damage to the airplane.
Airworthiness Directives; Pratt & Whitney Division Turbofan Engines
Document Number: 2012-6965
Type: Proposed Rule
Date: 2012-03-23
Agency: Federal Aviation Administration, Department of Transportation
We propose to adopt a new airworthiness directive (AD) for Pratt & Whitney PW4052, PW4152, PW4056, PW4156A, PW4060, PW4060A, PW4060C, PW4062, PW4062A, PW4158, PW4460, PW4462, PW4164, PW4164C, PW4164C/B, PW4168, and PW4168A turbofan engines with certain high- pressure turbine (HPT) stage 1 front hubs installed. This proposed AD was prompted by Pratt & Whitney's updated low-cycle-fatigue analysis that indicated certain HPT stage 1 front hubs could initiate a crack prior to the published life limit. This proposed AD would require removing the affected HPT stage 1 front hubs from service using a drawdown plan. We are proposing this AD to prevent failure of the HPT stage 1 front hub, which could lead to an uncontained engine failure and damage to the airplane.
Special Conditions: Boeing Model 787 Series Airplanes; Single-place Side-facing Seats With Inflatable Lapbelts
Document Number: 2012-6957
Type: Rule
Date: 2012-03-23
Agency: Federal Aviation Administration, Department of Transportation
These special conditions are issued for the Boeing Model 787 series airplanes. These airplanes have a novel or unusual design feature associated with single-place side-facing seats with inflatable lapbelts. 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: Embraer S.A., Model EMB 505; Inflatable Side-Facing Seat Three-Point Restraint Safety Belt With an Integrated Airbag Device in the Side-Facing Divan Aft Position
Document Number: 2012-6956
Type: Rule
Date: 2012-03-23
Agency: Federal Aviation Administration, Department of Transportation
These special conditions are issued for the installation of an inflatable three-point restraint safety belt with an integrated airbag device at the aft position in two-place side-facing divan seats on the Embraer S.A. aircraft model EMB-505. These airplanes, as modified by the installation of these inflatable safety belts, will have novel and unusual design features associated with the upper-torso restraint portions of the three-point safety belts, which contain an integrated airbag device. 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; Pratt & Whitney (PW)Turbofan Engines
Document Number: 2012-6952
Type: Rule
Date: 2012-03-23
Agency: Federal Aviation Administration, Department of Transportation
We are adopting a new airworthiness directive (AD) for PW JT9D-7R4G2 and -7R4H1 turbofan engines. This AD was prompted by the determination that a new lower life limit for high-pressure turbine (HPT) 1st stage air seals, part number (P/N) 735907, is necessary. This AD establishes a new lower life limit for HPT 1st stage air seals, P/N 735907, and requires removing them from service using a drawdown schedule. We are issuing this AD to prevent critical life-limited rotating engine part failure and damage to the airplane.
Airworthiness Directives; Airbus Airplanes
Document Number: 2012-6778
Type: Rule
Date: 2012-03-23
Agency: Federal Aviation Administration, Department of Transportation
We are adopting a new airworthiness directive (AD) for certain Airbus Model A340-211, -212, -311, and -312 airplanes. This AD requires repetitive inspections for cracking at the fastener hole area just above stringer 28, of both left- and right-hand fuselage frame 39.1, and repair if necessary. This AD was prompted by a determination that certain airplanes were not included in a certain airworthiness limitation item (ALI) task (inspections for cracking of the fuselage frame 39.1) and that the inspections must be done to address the identified unsafe condition. We are issuing this AD to detect and correct cracking in the fuselage that could result in reduced structural integrity of the airplane.
Airworthiness Directives; Bombardier, Inc. Airplanes
Document Number: 2012-6530
Type: Rule
Date: 2012-03-23
Agency: Federal Aviation Administration, Department of Transportation
We are adopting a new airworthiness directive (AD) for certain Bombardier, Inc. Model DHC-8-400 series airplanes. This AD was prompted by a report of the inability to open the airstair door while on the ground, because the airstair door seal did not deflate, which prevented the airstair door from opening. This AD requires changing the wiring that controls the pneumatic shut-off valve. We are issuing this AD to prevent the airstair door seal from not deflating, which could result in the airstair door not opening and could impede evacuation in the event of an emergency.