HMLA-773 Detachment A was activated at Willow Grove, PA in 1997. During 2003 the squadron moved to New Orleans, exchanging bases, aircraft and personnel with HMLA-775 Det A. The detachment has been activated in support of the current Global War on Terror.
Activated 10 September 1997 at Willow Grove, PA, as Marine Light Attack Helicopter Squadron 773, Detachment A (HMLA-773, Det. A).
HMLA-773 Det A. (Willow Grove, PA) and HMLA-775 Det A. (Belle Chasse, LA) swapped designations (FY2000) in realignment of USMCR aviation assets.
NATIONAL DEFENSE SERVICE STREAMER
Nicknames: "Red Dogs"
ID Code: WG 1997-2000 ; MM 2000-
Aircraft: AH-1W; UH-1N; UH-1Y
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