WASHINGTON (7News) — A week ago today, the lives of 67 families were forever changed, and hundreds of others will never be the same.

It has been a week since an American Airlines plane and a U.S. Army Black Hawk helicopter collided midair over the Potomac River near Reagan National Airport and all 67 victims have now been recovered, officials said.

Officials said the chief medical examiner is still trying to identify one set of remains positively.

Meanwhile, recovery efforts are continuing as responders carefully pull the American Airlines plane wreckage from the river. The center fuselage, the tail cone, significant portions of the forward cabin, and the cockpit will be moved to a secure location for a layout examination.

SEE ALSO | All 67 victims of the aircraft collision over the Potomac River have been recovered

Some unloading is expected Wednesday morning when environmental and tidal conditions allow. The operation will then shift to recovering wreckage from the Black Hawk helicopter.

7News spoke with retired army master aviator, Gordon Sumner. He flew over 5,000 hours in various army aircraft and sometimes flew under night vision goggles.

We asked him if these helicopters do not have technology similar to drones and automobiles where the machine can assist in preventing a crash, and if so, why not?

“The why not, in my opinion, it’s money. I mean is the technology out there, honestly I don’t know because the technology of the aircraft they fly today is far beyond what I was flying. Aircraft do have what’s called a proximity warning device. So when you get close to an object you get an audio in your headset. But if you think about your convergence speed is 200 miles an hour, and you can imagine the distance that you are going to cover in just a mere 30 seconds at 200 miles an hour,” said Sumner who is also a decorated combat veteran and Purple Heart Medal recipient.

SEE ALSO | Plane salvage operations continue after all victims recovered from Potomac

The National Transportation Safety Board (NTSB) has also provided updated information that shows new data information from sensors that feed the air traffic control tower display at DCA.

This new data shows the Black Hawk was at 300 feet on the air traffic control display at the time of the collision. This data is rounded to the nearest 100 feet.

To verify this information, crews need to recover the Black Hawk from the water, which is the focus of Wednesday.

Sumner doesn’t think protocol will change much with these military exercises and drills around Reagan National Airport.

“You’ve gotta get to the Pentagon and you are going to look right at the airport as you swing by headed that direction. So yeah it’s gonna continue. They are just going to have to look at the procedures, look at the flight routes, look at potential safety factors, what can be done better, how do they control it?” asked Sumner.

The NTSB investigation is looking into everyone and everything, including recent flights. Airline officials and radar data have confirmed that just one day before the deadly crash, a passenger jet had to abort its initial landing here at Reagan after another military chopper appeared in its flight path.