- Public Inspection
The FAA proposes to adopt a new airworthiness directive (AD) for all Pratt & Whitney (PW) PW2037, PW2037M, PW2040, and F117-PW-100 model turbofan engines. This proposed AD was prompted by a report of an uncontained engine failure resulting from cracks in the knife edge of the high-pressure turbine (HPT) 2nd-stage air seal. This proposed AD would...
The FAA proposes to supersede Airworthiness Directive (AD) 2018-25-02 and AD 2019-23-01, which apply to certain Airbus SAS Model A318 series airplanes; Model A319-111, -112, -113, -114, -115, -131, - 132, and -133 airplanes; Model A320-211, -212, -214, -216, -231, -232, -233, -251N, -252N, and -271N airplanes; and Model A321 series airplanes....
Air Plan Approval; Missouri; Restriction of Emission of Lead From Specific Lead Smelter-Refinery Installations
The Environmental Protection Agency (EPA) is proposing approval of a State Implementation Plan (SIP) revision submitted by Missouri on February 5, 2019. Missouri requests that EPA revise its approved plan which restricts emission of lead from specific lead smelter-refinery installations. The revisions remove emission restrictions for a facility...
Promulgation of State Implementation Plan Revisions; Infrastructure Requirements for the 2015 Ozone National Ambient Air Quality Standards; Utah
On October 1, 2015, the Environmental Protection Agency (EPA) promulgated the 2015 ozone National Ambient Air Quality Standard (NAAQS), revising the standard to 0.070 parts per million. Whenever a new or revised is promulgated, the Clean Air Act (CAA or Act) requires each state to submit a State Implementation Plan (SIP) revision for the...