A memorial for two pilots with Marine Light Attack Helicopter Squadron 169, who passed away following a mishap last year, stands at the Strategic Expeditionary Landing Field, at Marine Corps Air Ground Combat Center Twenty nine Palms, Calif. Jan. 23, 2016. Marine Wing Support Squadron 374 completed the memorial in time to be unveiled on the anniversary of the incident. - A memorial for two pilots with Marine Light Attack Helicopter Squadron 169, who passed away following a mishap last year, stands at the Strategic Expeditionary Landing Field, at Marine Corps Air Ground Combat Center Twenty nine Palms, Calif. Jan. 23, 2016. Marine Wing Support Squadron 374 completed the memorial in time to be unveiled on the anniversary of the incident.