Federal Aviation Administration June 11, 2018 – Federal Register Recent Federal Regulation Documents
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Airworthiness Directives; Gulfstream Aerospace Corporation Airplanes
The FAA is correcting an airworthiness directive (AD) that published in the Federal Register. The AD applies to certain Gulfstream Aerospace Corporation Models G-IV and GIV-X airplanes. Paragraphs (h)(3) through (5) of the AD incorrectly reference Customer Bulletin 238A as Customer Bulletin 283A. This document corrects that error. In all other respects, the original document remains the same; however for the sake of clarity, we are publishing the entire rule in the Federal Register.
Airworthiness Directives; International Aero Engines (IAE) Turbofan engines
We propose to adopt a new airworthiness directive (AD) for all International Aero Engines (IAE) PW1133G-JM, PW1133GA-JM, PW1130G-JM, PW1127G-JM, PW1127GA-JM, PW1127G1-JM, PW1124G-JM, PW1124G1-JM, and PW1122G-JM turbofan engines. This proposed AD was prompted by reports of in-flight engine shutdowns and aborted take-offs as the result of certain parts affecting the durability of the rear high-pressure compressor (HPC) rotor hub knife edge seal. This proposed AD would require replacing the diffuser case air seal assembly, the high- pressure turbine (HPT) 2nd-stage vane assembly, and the HPT 2nd-stage borescope stator vane assembly with parts eligible for installation. We are proposing this AD to address the unsafe condition on these products.
Proposed Establishment of Class E Airspace and Amendment of Class E Airspace; Ephrata, WA
This action proposes to establish Class E airspace extending upward from 700 feet above the surface, and modify Class E surface area airspace at Ephrata Municipal Airport, Ephrata, WA. This action also proposes to update the geographic coordinates of the airport in the associated Class E airspace areas to match the FAA's aeronautical database. These changes are necessary to accommodate airspace redesign for the safety and management of instrument flight rules (IFR) operations within the National Airspace System. Also, an editorial change would be made to the Class E surface airspace legal description replacing ``Airport/Facility Directory'' with the term ``Chart Supplement''.
Revocation of Class E Airspace; Seven Springs, PA, and Amendment of Class E Airspace; Somerset, PA
This action corrects a final rule published in the Federal Register on April 20, 2018, amending and removing Class E airspace at Seven Springs, PA, by correcting the geographic coordinates in the legal description of Class E airspace extending upward from 700 feet or more above the surface for Somerset County Airport.
Revocation and Amendment of Class E Airspace, Philipsburg, PA
This action removes Class E surface airspace at Mid-State Airport, as the airport no longer qualifies for surface airspace. Also, this action removes Class E airspace extending upward from 700 feet above the surface at Philipsburg Area Hospital Heliport, as the Hospital has closed. Controlled airspace redesign is necessary for the safety and management of instrument flight rules (IFR) operations at Mid-State Airport.
Airworthiness Directives; The Boeing Company Airplanes
We are adopting a new airworthiness directive (AD) for certain The Boeing Company Model 787-8 and 787-9 airplanes. This AD was prompted by a report of an in-service reliability issue of a latent flow sensor failure combined with single cabin air compressor (CAC) operation. This condition resulted in reduced airflow which led to a persistent single CAC surge condition that caused overheat damage to the CAC inlet. This AD requires installing new pack control unit (PCU) software for the cabin air conditioning and temperature control system (CACTCS) and new CAC outlet pressure sensor J-tube hardware, and doing related investigative and corrective actions if necessary. We are issuing this AD to address the unsafe condition on these products.
Airworthiness Directives; Airbus Airplanes
We propose to adopt a new airworthiness directive (AD) for certain Airbus Model A350-941 airplanes. This proposed AD was prompted by a determination that more restrictive maintenance requirements and airworthiness limitations are necessary. This proposed AD would require revising the maintenance or inspection program, as applicable, to incorporate new or more restrictive maintenance requirements and airworthiness limitations. We are proposing this AD to address the unsafe condition on these products.
Airworthiness Directives; Airbus Airplanes
We propose to adopt a new airworthiness directive (AD) for all Airbus Model A350-941 airplanes. This proposed AD was prompted by a report of an overheat failure mode of the hydraulic engine-driven pump, which could cause a fast temperature rise of the hydraulic fluid. This proposed AD would require modifying the hydraulic monitoring and control application (HMCA) software. We are proposing this AD to address the unsafe condition on these products.
Airworthiness Directives; Airbus
We propose to adopt a new airworthiness directive (AD) for certain Airbus Model A350-941 airplanes. This proposed AD was prompted by the discovery of inadequate corrosion protection in certain areas of the horizontal stabilizer and the rear fuselage cone structure. This proposed AD would require application of sealant and protective treatment on the affected areas of the horizontal stabilizer and the rear fuselage cone structure and, for certain airplanes, modification of the trimmable horizontal stabilizer (THS) torsion box and re- identification of the elevator. We are proposing this AD to address the unsafe condition on these products.
Airworthiness Directives; Embraer S.A. Airplanes
We propose to adopt a new airworthiness directive (AD) for certain Embraer S.A. Model ERJ 190 airplanes. This proposed AD was prompted by reports of bushing migration and loss of nut torque on the engine pylon lower inboard and outboard link fittings. This proposed AD would require modification of the attaching parts of the left-hand (LH) and right-hand (RH) pylon lower link fittings, inboard and outboard positions. We are proposing this AD to address the unsafe condition on these products.
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