Federal Aviation Administration October 29, 2013 – Federal Register Recent Federal Regulation Documents

Notice of Intent To Rule on Change in Use of Aeronautical Property at Bowman Field Airport, Louisville, KY
Document Number: 2013-25585
Type: Notice
Date: 2013-10-29
Agency: Federal Aviation Administration, Department of Transportation
The Federal Aviation Administration is requesting public comment on request by the Louisville Regional Airport Authority to temporarily change a portion of airport property from aeronautical to non-aeronautical use at the Bowman Field Airport, Louisville, Kentucky. The request consists approximately of 0.41 acres of temporary use. This action is taken under the provisions of Section 125 of the Wendell H. Ford Aviation Investment Reform Act for the 21st Century (AIR 21).
Airworthiness Directives; Twin Commander Aircraft LLC Airplanes; Initial Regulatory Flexibility Analysis
Document Number: 2013-25526
Type: Proposed Rule
Date: 2013-10-29
Agency: Federal Aviation Administration, Department of Transportation
This document announces the availability of and request for comments on the initial regulatory flexibility analysis for the previously published Airworthiness Directive (AD) 2013-09-05 that applies to certain Twin Commander Aircraft LLC Models 690, 690A, and 690B airplanes. AD 2013-09-05 requires inspection for cracking of the outer fuselage attachments, the lower wing main spar, the vertical channels, the upper picture window channels, aft cabin pressure web, external wing to fuselage fillets, and fasteners; repair or replacement of damaged parts as necessary; and modification of the structure with reinforced parts.
Airworthiness Directives; Pratt & Whitney Canada Corp. Turboprop Engines
Document Number: 2013-25460
Type: Proposed Rule
Date: 2013-10-29
Agency: Federal Aviation Administration, Department of Transportation
We propose to adopt a new airworthiness directive (AD) for all Pratt & Whitney Canada Corp. (P&WC) PT6A-114 and PT6A-114A turboprop engines. This proposed AD was prompted by several incidents of compressor turbine (CT) blade failure, including two fatalities, resulting in power loss and in-flight shutdown (IFSD) of the engine. This proposed AD would require initial and repetitive borescope inspections (BSIs) of CT blades, and the removal from service of blades that fail inspection. We are proposing this AD to prevent failure of CT blades, which could lead to damage to the engine or to the airplane.
Airworthiness Directives; Pratt & Whitney Turbofan Engines
Document Number: 2013-25459
Type: Proposed Rule
Date: 2013-10-29
Agency: Federal Aviation Administration, Department of Transportation
We propose to adopt a new airworthiness directive (AD) for all Pratt & Whitney (PW) PW2037, PW2037D, PW2037M, PW2040, PW2040D, PW2043, PW2146, PW2240, PW2337, PW2643, and F117-PW-100 turbofan engines. This proposed AD was prompted by a rupture of the diffuser-to-high-pressure turbine (HPT) case flange. This proposed AD would require a one-time eddy current inspection (ECI) of affected engines with certain diffuser and HPT cases installed. This AD also proposes to require a fluorescent-penetrant inspection (FPI) of the diffuser case rear flange and HPT case front flange. We are proposing this AD to prevent failure of the diffuser-to-HPT case flange, which could lead to uncontained engine failure and damage to the airplane.
Special Conditions: Airbus, Model A350-900 Series Airplane; Ground Pivoting Loads
Document Number: 2013-25398
Type: Proposed Rule
Date: 2013-10-29
Agency: Federal Aviation Administration, Department of Transportation
This action proposes special conditions for Airbus Model A350- 900 series airplanes. These airplanes will have a novel or unusual design feature(s) associated with a braking system that affects the airplane's pivoting behavior. 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.
Airworthiness Directives; Lycoming Engines and Continental Motors, Inc. Reciprocating Engines
Document Number: 2013-25342
Type: Rule
Date: 2013-10-29
Agency: Federal Aviation Administration, Department of Transportation
We are superseding airworthiness directive (AD) 2012-24-09 for Lycoming Engines TIO-540-AK1A, and Continental Motors, Inc. (CMI) TSIO- 360-MB, TSIO-360-SB, and TSIO-360-RB reciprocating engines, with certain Hartzell Engine Technologies (HET) turbochargers, model TA0411, installed. AD 2012-24-09 required removing certain HET turbochargers from service before further flight. This AD also requires removing certain HET turbochargers from service before further flight. This AD was prompted by a report that an additional engine, the CMI LTSIO-360- RB, has the affected HET turbochargers installed. We are issuing this AD to prevent turbocharger turbine wheel failure, reduction or complete loss of engine power, loss of engine oil, oil fire, and damage to the airplane.
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