The history of VMMT-204 goes back to 1972 when Marine Helicopter Training Group 40 was deactivated. The personnel and assets of the deactivated squadrons (HMHT-401 and HMMT-402) were combined to create a new squadron HMT-204. From 1972 to 1999, HMT-204 trained crews and maintenance personnel for the CH-46 and CH-53. In 1999, the squadron became the model manager for the MV-22 "Osprey" tilt-rotor aircraft. The change of aircraft meant a change in designation and so HMT-204 was redesignated VMMT-204.
Activated 1 May 1972 at New River, NC, as
Marine Helicopter Training Squadron 204.
Redesignated 1 June 1999 as Marine Tilt-Rotor Training Squadron 204.
MERITORIOUS UNIT COMMENDATION
NATIONAL DEFENSE SERVICE STREAMER with 1 bronze star