The Federal Aviation Administration Reauthorization Act of 2016, passed by the United States Senate on April 19, 2016, and previously reported on in this publication, contains another provision that merits comment. Section 2506, “Airspace Management Advisory Committee” was introduced by Senators McCain and Flake of Arizona, purportedly to provide a communication channel between the Federal Aviation Administration (“FAA”) and the public concerning FAA programs for redesign of regional airspace over major public airports.
On August 19, 2014, the Federal Aviation Administration (“FAA”) published a proposed rule regarding “Implementation of Legislative Categorical Exclusion for Environmental Review of Performance Based Navigation Procedures,” 79 Fed.Reg. 49141 (“CATEX Rule”) to implement the Congressional mandate contained in the FAA Modernization and Reform Act of 2012, Pub.L. 112-95 (“FRMA”), § 213, directing FAA “to issue and file a categorical exclusion for any navigation performance or other performance based navigation (PBN) procedure that would result in measureable reductions in fuel consumption, carbon dioxide emissions, and noise on a per flight basis as compared to aircraft operations that follow existing instrument flight rule procedures in the same airspace.” 79 Fed.Reg. 41941.
Responding to the concerns of pilots and the California Energy Commission (“CEC”) regarding the impact of exhaust plumes from power plants on overflying aircraft, the Federal Aviation Administration’s (“FAA”) Airport Obstruction Standard Committee (“AOSC”) completed a Supplement to FAA’s 2006 guidance [“Safety Risk Analysis of Aircraft Overflight of Industrial Exhaust Plumes”]. The purpose of the Supplement is to enhance current FAA regulations which only address standards for the physical height of the smoke stacks, and omit regulation of the impacts of the smoke plume emitted from the stacks, or the emissions contained in them.
The Supplement is also aimed at obtaining definitive answers to the questions: (1) how much turbulence is created by exhaust plumes; (2) is this turbulence great enough to cause loss of pilot control; (3) if so, what size aircraft are impacted; (4) is there a lack of oxygen causing loss of engine power or danger to pilots/passengers; and, if so, (5) what is the harm to those pilots and passengers?
For two years, from 2008 to 2010, the AOSC conducted a Plume Report Study, which was ultimately determined to need further verification and validation. In 2011, FAA retained the Federally funded Research and Development Center, operated by Mitre Corporation to answer the questions specified in the earlier Plume Report. The Mitre Study was completed in September 2012 and verified both FAA’s model and what the earlier FAA reports and studies had concluded.