January 31, 2012
Final Rules
- Airworthiness Directives; Bombardier, Inc. Airplanes. 14 CFR Part 39
[Docket No. FAA–2012–0037; Directorate Identifier 2012–NM–003–AD; Amendment 39–16935; AD 2012–02–12]. Final rule. We are adopting a new
airworthiness directive (AD) for certain Bombardier, Inc. Model DHC–8–400,
–401, and –402 airplanes. This AD requires an inspection of a certain
alternating current (AC) power wire bundle for damage, and repair if necessary. Additionally, this AD requires segregating the wire bundle into two wire bundles and installing Teflon tubing. This AD was prompted by multiple reports of the loss of certain AC systems caused by a burnt AC power wire bundle. We are issuing this AD to prevent the loss of ice protection systems for the angle of attack vanes, pitot probes, engine inlets, and windshields, and consequent loss of or
misleading airspeed indication and increased workload for the flight crew, which could lead to loss of control of the airplane. DATES: This AD becomes effective
February 15, 2012. The Director of the Federal Register approved the incorporation by reference of a certain publication listed in the AD as of February 15, 2012. We must receive comments on this AD by March 16, 2012. - Airworthiness Directives; Rolls-Royce plc (RR) RB211–535 Series Turbofan Engine. 14 CFR Part 39 [Docket No. FAA–2009–0994; Directorate Identifier 2009–NE–39–AD; Amendment 39–16934; AD 2012–02–11]. Final rule. We are superseding an existing airworthiness directive (AD) for all RR RB211–535E4–37, –535E4–B–37,–535E4–B–75, and –535E4–C–37 turbofan engines. That AD currently requires performing initial and repetitive visual and fluorescent penetrant inspections (FPI) of the lowpressure (LP) turbine stage 1, 2, and 3 discs to detect cracks in the discs. This new AD continues to require those
inspections and changes the definition of a shop visit to be less restrictive. This
AD was prompted by our finding that the definition of shop visit in the existing AD was too restrictive. We are issuing this AD to revise the definition of shop visit and to detect cracks in the LP turbine stage 1, 2, and 3 discs, which could result in an uncontained release of LP turbine blades and damage to the airplane. DATES: This AD is effective March 6, 2012. - Airworthiness Directives; General Electric Company Turbofan Engines. 14 CFR Part 39 [Docket No. FAA–2010–0068; DirectorateIdentifier 2010–NE–05–AD; Amendment 39–16930; AD 2012–02–07]. Final rule. We are superseding two
existing airworthiness directives (ADs) for General Electric Company (GE) CF6–
45 and CF6–50 series turbofan engines with certain low-pressure turbine (LPT)
rotor stage 3 disks installed. The existing ADs currently require inspections of high-pressure turbine (HPT) and LPT rotors, engine checks, and vibration surveys. This new AD retains the requirements of the two ADs being superseded, adds an optional LPT rotor stage 3 disk removal after a failed HPT blade borescope inspection (BSI) or a failed engine core vibration survey, establishes a new lower life limit for the affected LPT rotor stage 3 disks, and requires removing these disks from service at times determined by a drawdown plan. This AD was prompted by the determination that a new lower life limit for the LPT rotor stage 3 disks is necessary. We are issuing this AD to prevent critical life-limited rotating engine part failure, which could result in an uncontained engine failure and damage to the airplane. DATES: This AD is effective March 6,
2012. The Director of the Federal Register approved the incorporation by reference of a certain publication listed in this AD as of February 22, 2011 (76 FR 6323, February 4, 2011).
Proposed Rules
- Airworthiness Directives; Pilatus Aircraft Ltd. Airplanes. 14 CFR Part 39
[Docket No. FAA–2012–0018; Directorate Identifier 2011–CE–042–AD]. Proposed rule. The FAA is correcting a Notice of Proposed Rulemaking (NPRM)
that was published in the Federal Register. That NPRM applies to certain
Pilatus Aircraft Ltd. Models PC–6, PC–6–H1, PC–6–H2, PC–6/350, PC–6/350–
H1, PC–6/350–H2, PC–6/A, PC–6/A–H1,PC–6/A–H2, PC–6/B–H2, PC–6/B1–H2,PC–6/B2–H2, PC–6/B2–H4, PC–6/C–H2, and PC–6/C1–H2 airplanes. The Docket Number in the heading, in the Supplementary Information section, and
in the Part 39—Airworthiness Directive section is incorrect. This document
corrects that error. In all other respects, the original document remains the
same. DATES: The last date for submitting comments to the NPRM (77 FR 2238,
January 17, 2012) remains March 2, 2012. - Proposed Establishment of Class E Airspace; Freer, TX. 14 CFR Part 71
[Docket No. FAA–2011–0901; Airspace Docket No. 11–ASW–12]. Proposed rule. This action proposes to establish Class E airspace at Freer, TX. Controlled airspace is necessary to accommodate new Standard Instrument Approach Procedures (SIAP) at Seven C’s Ranch Airport. The FAA is taking this action to enhance the safety and management of Instrument Flight Rules (IFR) operations for SIAPs at the airport. DATES: 0901 UTC. Comments must be received on or before March 16, 2012. - Proposed Amendment of Class E Airspace; Baraboo, WI. 14 CFR Part 71
[Docket No. FAA–2011–1403; Airspace Docket No. 11–ASW–29]. Proposed rule. This action proposes to amend Class E airspace at Baraboo, WI. Additional controlled airspace is necessary to accommodate new Standard Instrument Approach Procedures (SIAP) at Reedsburg Municipal Airport. The FAA is taking
this action to enhance the safety and management of Instrument Flight Rules
(IFR) operations for SIAPs at the airport. The airport’s geographic coordinates
also would be adjusted. DATES: 0901 UTC. Comments must be received on or before March 16, 2012. - Proposed Amendment of Class E Airspace; Leesville, LA. 14 CFR Part 71
[Docket No. FAA–2011–0608; Airspace Docket No. 11–ASW–6]. Proposed rule. This action proposes to amend Class E airspace at Leesville, LA. Additional controlled airspace is necessary to accommodate new Standard Instrument Approach Procedures (SIAP) at Leesville Airport. The FAA is taking this action to
enhance the safety and management of Instrument Flight Rules (IFR) operations
for SIAPs at the airport. DATES: 0901 UTC. Comments must be received on or before March 16, 2012. - Proposed Amendment of Class E Airspace; Maryville, MO. 14 CFR Part 71
[Docket No. FAA–2011–0434; Airspace Docket No. 11–ACE–9]. Proposed rule. This action proposes to amend Class E airspace at Maryville, MO. Decommissioning of the Emville non-directional beacon (NDB) at Northwest Missouri Regional Airport, Maryville, MO, has made this action necessary for the safety and management of Instrument Flight Rules (IFR) operations at Northwest Missouri Regional Airport. The airport’s geographic coordinates also would be adjusted. DATES: 0901 UTC. Comments must be received on or before March 16, 2012. - Proposed Amendment of Class E Airspace; Monahans, TX. 14 CFR Part 71
[Docket No. FAA–2011–1400; Airspace Docket No. 11–ASW–15]. Proposed rule. This action proposes to amend Class E airspace at Monahans, TX. Additional controlled airspace is necessary to accommodate new Standard Instrument Approach Procedures (SIAPs) at Roy Hurd Memorial Airport. The FAA is taking
this action to enhance the safety and management of Instrument Flight Rules
(IFR) operations for SIAPs at the airport. The airport’s geographic coordinates
also would be adjusted. DATES: 0901 UTC. Comments must be received on or before March 16, 2012. - Proposed Amendment of Class E Airspace; New Philadelphia, OH. 14 CFR Part 71
[Docket No. FAA–2011–0607; Airspace Docket No. 11–AGL–15]. Proposed rule. This action proposes to amend Class E airspace at New Philadelphia, OH. Additional controlled airspace is necessary to accommodate new Standard Instrument Approach Procedures (SIAP) at Harry Clever Field. The FAA is taking this action to enhance the safety and management of Instrument Flight Rules (IFR) operations for SIAPs at the airport. Also, the geographic coordinates of the airport would be amended. DATES: 0901 UTC. Comments must be received on or before March 16, 2012. - Proposed Amendment of Class E Airspace; Springhill, LA. 14 CFR Part 71
[Docket No. FAA–2011–0847; Airspace Docket No. 11–ASW–11]. Proposed rule. This action proposes to amend Class E airspace at Springhill, LA. Decommissioning of the Springhill non-directional beacon (NDB) at Springhill Airport, Springhill, LA, has made this action necessary for the safety and management of Instrument Flight Rules (IFR) operations at Springhill Airport. The geographic coordinates of the airport also would be amended. DATES: 0901 UTC. Comments must be received on or before March 16, 2012. - Proposed Amendment of Class E Airspace; Tobe, CO. 14 CFR Part 71
[Docket No. FAA–2011–1338; Airspace Docket No. 11–ANM–27]. Proposed rule. This action proposes to amend Class E airspace at Tobe, CO. Decommissioning of the Tobe Tactical Air Navigation System (TACAN) has made this action necessary for the safety and management of Instrument Flight Rules (IFR) operations in the vicinity of the Tobe Very High Frequency Omni-Directional Radio Range/Distance Measuring Equipment (VOR/DME). DATES: Comments must be received on or before March 16, 2012. - Proposed Establishment of Class E Airspace; Branson West, MO. 14 CFR Part 71
[Docket No. FAA–2011–0749; Airspace Docket No. 11–ACE–15]. Proposed rule. This action proposes to establish Class E airspace at Branson West, MO. Controlled airspace is necessary to accommodate new Standard Instrument Approach Procedures (SIAP) at Branson West Municipal—Emerson Field Airport. The FAA is taking this action to enhance the safety and management of Instrument Flight Rules (IFR) operations for SIAPs at the airport. DATES: 0901 UTC. Comments must be received on or before March 16, 2012. - Proposed Establishment of Class E Airspace; Eldon, MO. 14 CFR Part 71
[Docket No. FAA–2011–1104; Airspace Docket No. 11–ACE–21]. Proposed rule. This action proposes to establish Class E airspace at Eldon, MO. Controlled airspace is necessary to accommodate new Standard Instrument Approach Procedures (SIAP) at Eldon Model Airpark. The FAA is taking this action to enhance the safety and management of Instrument Flight Rules (IFR) operations for SIAPs at the airport. DATES: 0901 UTC. Comments must be received on or before March 16, 2012. - Proposed Establishment of Class E Airspace; Houston, MO. 14 CFR Part 71
[Docket No. FAA–2011–0903; Airspace Docket No. 11–ACE–20]. Proposed rule. This action proposes to establish Class E airspace at Houston, MO. Controlled airspace is necessary to accommodate new Standard Instrument Approach Procedures (SIAP) at Houston Memorial Airport. The FAA is taking this action to enhance the safety and management of Instrument Flight Rules (IFR) operations for SIAPs at the airport. DATES: 0901 UTC. Comments must be received on or before March 16, 2012. - Proposed Establishment of Class E Airspace; Pender, NE. 14 CFR Part 71
[Docket No. FAA–2011–1103; Airspace Docket No. 11–ACE–14]. Proposed rule. This action proposes to establish Class E airspace at Pender, NE. Controlled airspace is necessary to accommodate new Standard Instrument Approach Procedures (SIAP) at Pender Municipal Airport. The FAA is taking this action to enhance the safety and management of Instrument Flight Rules (IFR) operations for SIAPs at the airport. DATES: 0901 UTC. Comments must be received on or before March 16, 2012. - Proposed Establishment of Class E Airspace; Red Cloud, NE. 14 CFR Part 71
[Docket No. FAA–2011–0426; Airspace Docket No. 11–ACE–7]. Proposed rule. This action proposes to establish Class E airspace at Red Cloud, NE. Controlled airspace is necessary to accommodate new Standard Instrument Approach Procedures (SIAP) at Red Cloud Municipal Airport. The FAA is taking this action to enhance the safety and management of Instrument Flight Rules (IFR) operations for SIAPs at the airport. DATES: 0901 UTC. Comments must be received on or before March 16, 2012.
