Marine Scout Bomber Squadron 143 (VMSB-143) was commissioned at NAS San Diego. Commanded by Major William K. Pottinger at Camp Kearney, CA on March 1, 1942.
Initially equipped with SB2Us for training then transitioned to the SBD Dauntless.
The squadron departed the United States on October 15, 1942 on the SS Lurline with seven pilots and 57 enlisted men. Nineteen more pilots arrived at Henderson Field on Guadalcanal November 12, 1942.
On November 17, 1942 the squadron entered combat flying the TBF Avenger. Later, nine additional pilots arrived as replacements.
On March 23, 1943 lost was TBF Avenger 06091 (MIA).
On May 17, 1943 lost is
TBF Avenger 06239 (MIA) on a night bombing mission against southern Bougainville.
On May 19 1943 thirty TBFs from VT-11 and VMSB-143 damaged the Houn Maru and force her aground. 6 48' N, 155 49E, a total loss. Lost is
On June 1, 1943 redesignated VMTB-143.
In June 1944 returned to the United States to Santa Barbara. On November 5, 1944 designated redesignated VMTB(CVS)-143. In March 1945 embarked with
Marine Fighting Squadron 512 ( VMF-512) aboard USS Gilbert Islands (CVE-107). The two squadrons formed Marine Carrier Air Group 2 (MCAG-2). During late May 1945 flew ground support missions over Okinawa and during June 1945 against outer islands in Okinawa Prefecture.
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