Fifty-five bodies have been recovered and identified so far, according to local authorities, who have expressed confidence they will locate all of the victims.
“We will absolutely stay here and search until such point as we have everybody,” Washington fire chief John Donnelly said Sunday.
The plane was on a flight from Wichita, Kansas, to Ronald Reagan National Airport in Washington when the collision occurred.
President Donald Trump was quick to blame diversity hiring policies for the accident although no evidence has emerged that they were responsible.
Trump also said the helicopter, which was on a routine training mission, appeared to be flying too high.
According to US media reports, the control tower at the busy airport may have been understaffed at the time of the accident.
The National Transportation Safety Board is expected to compile a preliminary report within 30 days, although a full investigation could take a year.
