Question: When was the base where Patrol Squadron Eight was formerly based closed?
Context: Patrol Squadron Eight (VP-8) is a U.S. Navy land-based patrol squadron that was based at the Naval Air Station Brunswick, Maine, but is now stationed at Naval Air Station Jacksonville, Florida.  VP-8 is tasked to undertake maritime patrol, anti-submarine warfare (ASW), and intelligence, surveillance and reconnaissance (ISR) missions. 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. VPB-24 was a Patrol Bombing Squadron of the U.S. Navy.  The squadron was established as Patrol Squadron 9-S (VP-9S) on 7 January 1930, redesignated Patrol Squadron 9-B (VP-9B) on 1 October 1930, redesignated Patrol Squadron 9-F (VP-9F) on 26 October 1931, redesignated Patrol Squadron 9 (VP-9) on 1 October 1937, redesignated Patrol Squadron 12 (VP-12) on 1 July 1939, redesignated Patrol Squadron 24 (VP-24) on 1 August 1941, redesignated Patrol Bombing Squadron 24 (VPB-24) on 1 October 1944 and disestablished on 20 June 1945. Patrol Squadron 24 (VP-24) was a Patrol Squadron of the U.S. Navy.  The squadron was established as Bombing Squadron One Hundred Four (VB-104) on 10 April 1943, redesignated as Patrol Bombing Squadron One Hundred Four (VPB-104) on 1 October 1944, redesignated as Patrol Squadron One Hundred Four (VP-104) on 15 May 1946, redesignated Heavy Patrol Squadron (Landplane) Four (VP-HL-4) on 15 November 1946, redesignated Patrol Squadron Twenty Four (VP-24) on 1 September 1948, the third squadron to be assigned the VP-24 designation, redesignated Attack Mining Squadron Thirteen (VA-HM-13) on 1 July 1956, redesignated Patrol Squadron Twenty Four (VP-24) on 1 July 1959 and disestablished 30 April 1995. VP-33 was a Patrol Squadron of the U.S. Navy.  The squadron was established as Patrol Squadron 12-F (VP-12F) on 1 November 1935, redesignated Patrol Squadron 12 (VP-12) on 1 October 1937, redesignated Patrol Squadron 51 (VP-51) on 1 July 1939, redesignated Patrol Squadron 71 (VP-71) on 1 July 1941, redesignated Patrol Bombing Squadron 71 (VPB-71) on 1 October 1944, redesignated Patrol Squadron 71 (VP-71) on 15 May 1946, redesignated Amphibian Patrol Squadron 3 (VP-AM-3) on 15 November 1946, redesignated Patrol Squadron 33 (VP-33) on 1 September 1948 and disestablished on 15 December 1949.  It was the second squadron to be designated VP-33, the first VP-33 was redesignated VPB-33 on 1 October 1944. VP-29 was a Patrol Squadron of the U.S. Navy.  The squadron was established as Patrol Squadron 14-F (VP-14F) on 1 November 1935, redesignated Patrol Squadron 14 (VP-14) on 4 September 1937, redesignated Patrol Squadron 52 (VP-52) on 1 July 1939, redesignated Patrol Squadron 72 (VP-72) on 1 July 1941, redesignated Patrol Bombing Squadron 122 (VPB-122) on 1 October 1944, redesignated Patrol Squadron 122 (VP-122) on 15 May 1946, redesignated Heavy Patrol Squadron (Landplane) 12 (VP-HL-12) on 15 November 1946, redesignated Patrol Squadron 29 (VP-29) on 1 September 1948 and disestablished on 18 January 1950. VP-20 was a Patrol Squadron of the U.S. Navy.  The squadron was established as Patrol Squadron 8-S (VP-8S) from elements of VT-9S on 1 July 1929, redesignated Patrol Squadron 8-F (VP-8F) on 3 April 1933, redesignated Patrol Squadron 8 (VP-8) on 1 October 1937, redesignated Patrol Squadron 24 (VP-24) on 1 July 1939, redesignated Patrol Squadron 12 (VP-12) on 1 August 1941, redesignated Patrol Bombing Squadron 120 (VPB-120) on 1 October 1944, redesignated Patrol Squadron 120 (VP-120) on 15 May 1946, redesignated Heavy Patrol Squadron (Landplane) 10 (VP-HL-10) on 15 November 1946, redesignated Patrol Squadron 20 (VP-20) on 1 September 1948 and disestablished on 31 March 1949.  It was the third squadron to be designated VP-20, the first VP-20 was redesignated VP-44 on 1 July 1940 and the second VP-20 was redesignated VPB-20 on 1 October 1944. VPB-29 was a Patrol Bombing Squadron of the U.S. Navy.  The squadron was established as Pacific Air Detachment on 17 January 1923, redesignated Patrol Squadron 14 (VP-14) on 29 May 1924, redesignated Patrol Squadron 1-Naval District 14 (VP-1D14) on 21 September 1927, redesignated Patrol Squadron 1-B (VP-1B) on 1 July 1931, redesignated Patrol Squadron 1-F (VP-1F) on 15 April 1933, redesignated Patrol Squadron 1 (VP-1) on 1 October 1937, redesignated Patrol Squadron 21 (VP-21) on 1 July 1939, redesignated Patrol Squadron 1 (VP-1) on 30 July 1940, redesignated Patrol Squadron 101 (VP-101) on 3 December 1940, redesignated Patrol Bombing Squadron 29 (VPB-29) on 1 October 1944 and disestablished on 20 June 1945. VP-3 was a Patrol Squadron of the U.S. Navy.  The squadron was established as Patrol Squadron 16-F (VP-16F) on 2 January 1937, redesignated Patrol Squadron 16 (VP-16) on 1 October 1937, redesignated Patrol Squadron 41 (VP-41) on 1 July 1939, redesignated Bombing Squadron 136 (VB-136) on 1 March 1943, redesignated Patrol Bombing Squadron 136 (VPB-136) on 1 October 1944, redesignated Patrol Squadron 136 (VP-136) on 15 May 1946, redesignated Medium Patrol Squadron (landplane) 3 (VP-ML-3) on 15 November 1946, redesignated Patrol Squadron 3 (VP-3) on 1 September 1948, and was disestablished on 1 November 1955.  It was the second squadron to be designated VP-3, the first VP-3 was redesignated VP-32 on 1 July 1939. VP-34 was a Patrol Squadron of the U.S. Navy.  The squadron was established as Patrol Squadron 15-F (VP-15F) on 1 September 1936, redesignated Patrol Squadron 15 (VP-15) on 1 October 1937, redesignated Patrol Squadron 53 (VP-53) on 1 July 1939, redesignated Patrol Squadron 73 (VP-73) on 1 July 1941, redesignated Patrol Bombing Squadron 73 (VPB-73) on 1 October 1944, redesignated Patrol Squadron 73 (VP-73) on 15 May 1946, redesignated Amphibian Patrol Squadron 4 (VP-AM-4) on 15 November 1946, redesignated Patrol Squadron 34 (VP- 4) on 1 September 1948 and disestablished on 30 June 1956. .  It was the second squadron to be designated VP-34, the first VP-34 was redesignated VPB-34 on 1 October 1944.
Answer: May 31, 2011