Question: The Midcoast Regional Redevelopment Authority managed the conversion of what airport northeast of Brunswick, Maine?

Context paragraphs:
Naval Air Station Brunswick: Naval Air Station Brunswick (IATA: NHZ, ICAO: KNHZ, FAA LID: NHZ) , also known as NAS Brunswick, was a military airport located 2 mi northeast of Brunswick, Maine, with a number of Navy-operated maritime patrol aircraft.  As of November 28, 2009, the last aircraft (P-3 Orions) left.  The runways were permanently closed in January 2010.  The base operated while the airport operated publicly under the name Brunswick Executive Airport until the base closed on May 31, 2011, as per the 2005 Base Realignment and Closure committee decision.  Since then the base is known as Brunswick Landing.  The Midcoast Regional Redevelopment Authority has been managing base redevelopment with high-tech business and industrial park.  On April 2, 2011, the airport reopened as Brunswick Executive Airport.

Red Line (Cleveland): The Red Line (Route 66, also known as the Airport–Windermere Line) is a rapid transit line of the RTA Rapid Transit system in Cleveland, Ohio, running from Cleveland Hopkins International Airport northeast to Tower City in downtown Cleveland, then east and northeast to Windermere.  2.6 mi of track, including two stations (East 34th-Campus and East 55th), are shared with the light rail Blue and Green Lines; the stations have high platforms for the Red Line and low platforms for the Blue and Green Lines.  The whole Red Line is built next to current or former freight or intercity passenger railroads.  It uses overhead lines and pantographs to draw power.

Metropolitan Redevelopment Authority: Metropolitan Redevelopment Authority (MRA) is a statutory authority of the Government of Western Australia.  It was formed in 2011 under the "Metropolitan Redevelopment Authority Act 2011" and reports to the Minister for Planning.

Philadelphia Redevelopment Authority: The Philadelphia Redevelopment Authority, with the legal name of "Philadelphia Redevelopment Authority", was created by the Commonwealth of Pennsylvania's Urban Redevelopment Law of 1945.  It is known locally as "the PRA."  Until the Fall of 2011 it was known as the Redevelopment Authority of the City of Philadelphia (RDA).

Kallang Airport: Kallang Airport, also known as Kallang Aerodrome, Kallang Airfield and RAF Kallang, opened in 1937 as Singapore's first purpose-built civil airport and was built together with an anchorage area for seaplanes along the airport's perimeter on the waterfront (on the Kallang River).  Large tracts of land were reclaimed in the Kallang Basin to turn the vast swampy area into a circular-shaped airfield and to build a slipway for seaplanes.  The airport was closed down in 1955 when the new Singapore International Airport at Paya Lebar (also known as Paya Lebar Airport and now operated as Paya Lebar Air Base by the RSAF) was built and opened in that same year.  Although most of Kallang Airport was demolished soon after it was shut down and the cleared areas of the former airport were redeveloped (such as the old seaplane anchorage area and the runway), the distinctive airport terminal building, some nearby airport structures (major ones include a few of the original aircraft hangars and former airport administration blocks, some of which have been quite recently demolished) and the iconic control tower were retained and served as the headquarters of the People's Association (a major government-run community organisation in Singapore) until April 2009.  Just a year before, the Urban Redevelopment Authority (URA) of Singapore gazetted what remained of Kallang Airport for conservation as a historic monument/landmark in the country.  It is currently unoccupied.

Midcoast Regional Redevelopment Authority: The Midcoast Regional Redevelopment Authority (MRRA) is a public municipal corporation created in 2007 by the Maine State Legislature to manage the conversion of the former Naval Air Station Brunswick to civilian use.  MRRA is overseen by an 11-member board of trustees appointed by the Governor of Maine and confirmed by the legislature.

Brunswick Executive Airport: Brunswick Executive Airport (IATA: NHZ, ICAO: KBXM, FAA LID: BXM) is a public use general aviation airport located two nautical miles (4 km) southeast of the central business district of Brunswick, a town in Cumberland County, Maine, United States.  It is owned by the Midcoast Regional Redevelopment Authority.

Landmark sites in Singapore: Landmark sites in Singapore refers to a specific set of sites selected by the Urban Redevelopment Authority which are given greater design and planning flexibility to encourage the erection of architecturally distinctive buildings or structures.  These sites may involve existing buildings, old buildings slated for redevelopment, or empty plots to be developed in the future.

MidCoast Regional Airport at Wright Army Airfield: MidCoast Regional Airport at Wright Army Airfield (IATA: LIY, ICAO: KLHW, FAA LID: LHW) is a joint public and military use airport at Fort Stewart, a United States Army post located near the city of Hinesville in Liberty County, Georgia, United States.  The airport's physical address is 1116 E. Lowe Circle, Fort Stewart, GA 31314 and its mailing address is P.O. Box 10, Hinesville, GA 31310.

Passaic and Harsimus Line: Conrail's Passaic and Harsimus Line serves freight in northeastern New Jersey, as an alternate to the mainly passenger Northeast Corridor.  It takes trains from the Northeast Corridor and Lehigh Line near Newark Liberty International Airport northeast and east into Jersey City, New Jersey, serving as part of CSX's main corridor from upstate New York to the rest of the east coast.

Supporting paragraphs: Midcoast Regional Redevelopment Authority Naval Air Station Brunswick
Answer: Naval Air Station Brunswick