Federal Register Proposed Rules, Rules and Notices for August 13,2013

August 13,2013

NOTICES

Availability of Draft Advisory Circular (AC) 90-106A and AC 20-167A [FR DOC# 2013-19478] SUMMARY: This notice announces the availability of draft Advisory Circular (AC) 90-106A, Enhanced Flight Vision Systems and draft AC 20- 167A, Airworthiness Approval of Enhanced Vision System, Synthetic Vision System, Combined Vision System, and Enhanced Flight Vision System Equipment documents that were developed by the FAA. These documents are available for public review, download, and comment.

PROPOSED RULES

Airworthiness Directives; Maule Aerospace Technology, Inc. Airplanes [FR DOC# 2013-19638] SUMMARY: We propose to revise airworthiness directive (AD) 98-15-18 that applies to certain Maule Aerospace Technology, Inc. M-4, M-5, M-6, M-7, MT-7, MX-7, MXT-7, and M-8 airplanes that are equipped with rear wing lift struts, part number (P/N) 2079E, and/or front wing lift struts, P/N 2080E. AD 98-15-18 currently requires repetitively inspecting certain wing lift struts for internal corrosion and replacing of any wing lift strut where corrosion is found. Since we issued AD 98-15-18, we have been
informed by the manufacturer that Model MXT-7-420 airplanes are no longer in existence, are no longer type certificated, and should be removed from the Applicability section. We have also been informed that paragraph (b) in AD 98-15-18 is being misinterpreted and is causing confusion. This proposed AD would remove Model MXT-7-420 airplanes from the Applicability section and clarify the intent of the language currently in paragraph (b) of AD 98-15-18. This proposed AD would retain all other requirements of the existing AD. We are proposing this AD to correct the unsafe condition on these
products.

Airworthiness Directives; Airbus Airplanes [FR DOC# 2013-19528] SUMMARY: We propose to supersede airworthiness directive (AD) 2011-14- 06 that applies to all Airbus Model A318, A319, A320, and A321 series airplanes. That AD currently requires revising the maintenance program. Since we issued that AD, we have determined that more restrictive limitations are necessary. This proposed AD would require revising the maintenance program to incorporate new limitations. We are proposing this AD to prevent fatigue cracking, accidental damage, or corrosion in principal structural elements, and
possible failure of certain life limited parts, which could result in reduced structural integrity of the airplane.

Airworthiness Directives; the Boeing Company Airplanes [FR DOC# 2013-19527] SUMMARY: We are revising an earlier proposed airworthiness directive (AD), for all The Boeing Company Model 727 airplanes, which proposed to supersede an existing AD. That NPRM proposed to retain repetitive inspections of the in-tank fuel boost pump wiring, installation of sleeving over the in-tank fuel boost pump wires, repetitive inspections of a certain electrical wire, sleeve, and conduit, and applicable investigative and corrective actions; and repetitive engine fuel suction feed operational tests. That NPRM proposed to also require replacement of the wire bundles for the wing and center fuel boost pumps, installation of convoluted liners, and related investigative and corrective actions if necessary. That NPRM also proposed to require replacement of the fuel quantity indicating system (FQIS) wires; a low- frequency eddy current inspection for cracking; and repair if necessary. That NPRM also proposed to require revising the maintenance program to incorporate changes to the airworthiness limitations section. That NPRM was prompted by a report of damage found to the sleeve, jacket, and insulation on an electrical wire during a repetitive inspection. This action revises that NPRM by revising certain compliance times, specifying a terminating action, and adding a proposed requirement to incorporate another change to the airworthiness limitations section. We are proposing this supplemental NPRM to prevent 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. 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; Piper Aircraft, Inc. Airplanes [FR DOC# 2013-19530] SUMMARY: We propose to revise airworthiness directive (AD) 99-26-19 that applies to certain The New Piper Aircraft, Inc. Model J-2 airplanes equipped with wing lift struts. AD 99-26-19 currently requires repetitively inspecting the wing lift struts for dents and corrosion; repetitively inspecting the wing lift strut forks for cracks; replacing any dented or corroded wing lift strut; replacing any cracked wing lift strut fork; and repetitively replacing the wing lift strut forks at specified times for certain airplanes. AD 99-26-19 also
currently requires incorporating a “NO STEP” placard on the wing lift strut. Since we issued AD 99-26-19, we have been informed that paragraph (c) is being misinterpreted and causing confusion. This proposed AD would clarify the intent of the language currently in paragraph (c) of AD 99-26-19 and would retain all other requirements of AD 99-26-19. We are proposing this AD to correct the unsafe condition on these products.

Airworthiness Directives; Bombardier, Inc. Airplanes [FR DOC# 2013-19534] SUMMARY: We propose to adopt a new airworthiness directive (AD) for all Bombardier, Inc. Model CL-600-2B19 (Regional Jet Series 100 & 440) airplanes. This proposed AD was prompted by reports of burr marks on the primary wheels, and cracked rings on the primary wheel shaft, on certain horizontal stabilizer trim actuators (HSTAs). This proposed AD would require replacing certain HSTAs. We are proposing this AD to prevent burr marks on the primary wheels, and cracked rings on the primary wheel shaft, on certain HSTAs, which may lead to a disconnect of the pitch trim surface and subsequent loss of pitch control, resulting in loss of control of the airplane.

Airworthiness Directives; The Boeing Company Airplanes [FR DOC# 2013-19531] SUMMARY: We propose to supersede airworthiness directive (AD) 2009-24- 07, which applies to certain The Boeing Company Model 737-600, -700, – 700C, and -800 series airplanes. AD 2009-24-07 currently requires repetitive lubrications of the right and left main landing gear (MLG) forward trunnion pins. AD 2009-24-07 also requires an inspection for discrepancies of the transition radius of the MLG forward trunnion pins, and corrective actions if necessary. For certain airplanes, AD 2009-24-07 requires repetitive detailed inspections for discrepancies (including finish damage, corrosion, pitting, and base metal scratches) of the transition radius of the left and right MLG trunnion pins, and corrective action if necessary. Replacing or overhauling the trunnion pins would terminate the actions required by AD 2009-24-07. This proposed AD would add airplanes to the applicability of AD 2009-24-07. We are proposing this AD to prevent stress corrosion cracking of the forward trunnion pins, which could result in fracture of the pins and consequent collapse of the MLG.

Airworthiness Directives; Learjet Inc. Airplanes [FR DOC# 2013-19524] SUMMARY: We propose to supersede an existing airworthiness directive (AD) that applies to certain Learjet Inc. Model 60 airplanes. The existing AD currently requires determining if a certain fuel crossflow tube is installed; and follow-on/corrective actions, as applicable. Since we issued that AD, we have received a report that airplanes produced since 2003 might also be subject to the unsafe condition; and that the minimum allowable clearance is not established in the airplane maintenance information, and therefore, must be addressed by this proposed AD. This proposed AD would retain all actions in the previous AD, and would require determining if a certain fuel crossflow tube is installed, performing repetitive measurements of the fuel crossflow tube and surrounding valves and cables, and doing corrective actions if applicable. In addition, this proposed AD expands the applicability of the existing AD. We are proposing this AD to prevent chafing and consequent failure of the fuel crossflow tube due to inadequate clearance between the tube and the flight control cables, which could result in loss of fuel from one fuel tank during normal operating conditions or loss of fuel from both main fuel tanks during fuel cross- feeding operations.

Airworthiness Directives; EADS CASA (Type Certificate Previously Held by Construcciones Aeronáuticas, S.A.) Airplanes [FR DOC# 2013-19535] SUMMARY: We propose to adopt a new airworthiness directive (AD) for certain EADS CASA
(Type Certificate Previously Held by Construcciones Aeron[aacute]uticas, S.A.) Model C-212-CB, C-212-CC, C-212-CD, C-212- CE, and C-212-DF airplanes. This proposed AD was prompted by a report of the propeller pitch control (PPC) lever becoming disconnected from the engine due to a missing bolt. This proposed AD would require modifying the PPC lever attachment system. We are proposing this AD to prevent PPC shaft disconnection, which could lead to a loss of propeller pitch control, possibly resulting in uncommanded change to the engine power settings and consequent reduced controllability of the airplane.

Airworthiness Directives; the Boeing Company Airplanes [FR DOC# 2013-19525] SUMMARY: We propose to adopt a new airworthiness directive (AD) for certain The Boeing Company Model 707 airplanes; and Model 720 and 720B series airplanes. This proposed AD was prompted by reports indicating that a standard access door was located where an impact-resistant access door was required, and stencils were missing from some impact- resistant access doors. This proposed AD would require an inspection of the left- and right-hand wing fuel tank access doors to determine that impact- resistant access doors are installed in the correct locations, and to replace any door with an impact-resistant access door if necessary. This proposed AD also would require an inspection for stencils and index markers on impact-resistant access doors, and application of new stencils or index markers 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 prevent foreign object penetration of the fuel tank, which could cause a fuel leak near an ignition source (e.g., hot brakes or engine exhaust nozzle), consequently leading to a fuel-fed fire.

Airworthiness Directives; Bombardier, Inc. Airplanes [FR DOC# 2013-19529] SUMMARY: We propose to adopt a new airworthiness directive (AD) for certain Bombardier, Inc. Model DHC-8-400 series airplanes. This proposed AD was prompted by a report that a batch of main landing gear (MLG) door actuators with a certain part number having certain serial numbers could be assembled with the scraper installed backward. This proposed AD would require repetitive functional checks of the MLG alternate extension system (AES) and eventual replacement of certain MLG door actuators with actuators that have either been reworked or do not have certain serial numbers. We are proposing this AD to prevent incorrectly installed scrapers, which could hinder the operation of the MLG AES, and result in failure of the MLG AES on one side, and consequent unsafe asymmetrical landing configuration.

 

RULES

Airworthiness Directives; Pratt & Whitney Canada Corp. Turboprop Engines [FR DOC# 2013-19428] SUMMARY: We are adopting a new airworthiness directive (AD) for certain Pratt & Whitney Canada Corp. (P&WC) PW118A, PW118B, PW119B, PW119C, PW123, PW123B, PW123C, PW123D, PW123E, PW123AF, PW124B, PW125B, PW126A, PW127,
PW127E, PW127F, PW127G, and PW127M turboprop engines. This AD was prompted by reports of fractures of the first- stage power turbine (PT) blade. This AD requires inspection of the first-stage PT blades and the removal from service of those blades that fail the inspection or their replacement with blades eligible for installation. We are issuing this AD to prevent fracture of the first-stage PT blade, possible engine fire, and damage to the airplane.

Airworthiness Directives; Pratt & Whitney Division Turbofan Engines [FR DOC# 2013-19429] SUMMARY: We are adopting a new airworthiness directive (AD) for all Pratt & Whitney Division (PW) turbofan engine model PW4074, PW4074D, PW4077, PW4077D, PW4084D, PW4090, and PW4090-3 with a certain second- stage high-pressure turbine (HPT) air seal part number installed. This AD was prompted by discovery of cracks in second-stage HPT air seals. This AD requires inspection and removal from service of HPT air seals that fail inspection. We are issuing this AD to prevent failure of the second-stage HPT air seal, which could lead to an uncontained engine failure and damage to the airplane.

Airworthiness Directives; Agusta S.p.A. and Bell Helicopter Textron Helicopters [FR DOC# 2013-19434] SUMMARY: We are adopting a new airworthiness directive (AD) for Agusta S.p.A. (Agusta) Model AB412 and AB412 EP, and Bell Helicopter Textron (Bell) Model 412, 412CF, and 412EP helicopters with certain DART Aerospace Ltd. (Dart) high gear aft
crosstubes (crosstube) installed. This AD requires adding a life limit of 10,000 landings to the crosstube and removing from service any crosstubes with more than 10,000 accumulated landings. This AD is prompted by five separate reports of crosstube failures. The actions in this AD are intended to prevent failure of the crosstube and subsequent collapse of the landing gear.

Airworthiness Directives; Eurocopter Deutschland GmbH Helicopters [FR DOC# 2013-19447] SUMMARY: The FAA is correcting an airworthiness directive (AD) that was published in the Federal Register. The AD applies to certain Eurocopter Deutschland GmbH (Eurocopter) Model EC135 helicopters. The reference to Title 14, Code of Federal Regulations (14 CFR) 91.173 in the Required Actions section is incorrect. This document corrects that error. In all other respects, the original document remains the same.

Airworthiness Directives; Eurocopter France Helicopters [FR DOC# 2013-19444] SUMMARY: The FAA is correcting an airworthiness directive (AD) that was published in the Federal Register. The AD applies to certain Eurocopter France (Eurocopter) Model AS350B3 helicopters. The reference to Title 14, Code of Federal Regulations (14 CFR) 91.173 in the Required Actions section is incorrect. This document corrects that error. In all other respects, the original document remains the same.

Airworthiness Directives; Eurocopter France Helicopters [FR DOC# 2013-19457] SUMMARY: The FAA is correcting an airworthiness directive (AD) that was published in the Federal Register. The AD applies to certain Eurocopter France (Eurocopter) Model AS350B, B1, B2, B3, BA, C, D, and D1 helicopters; and Model AS355E, F, F1, F2, N, and NP
helicopters. The reference to Title 14, Code of Federal Regulations (14 CFR) 91.173 in the Compliance section is incorrect. This document corrects that error. In all other respects, the original document remains the same.

Modification of Class E Airspace; Brigham City, UT [FR DOC# 2013-19464] SUMMARY: This action modifies Class E airspace at Brigham City Airport, Brigham City, UT. Decommissioning of the Brigham City Nondirectional Radio Beacon (NDB) has made this action necessary for the safety and management of Instrument Flight Rules (IFR) operations at the airport. This action also makes an adjustment to the geographic coordinates of the airport.

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