Chesley B. “Sully” Sullenberger,the pilot who safely landed a passenger plane in the Hudson River in 2009, said a combination of two factors might have contributed to the American Airlines flightcollidingwith a helicopter.

The crash occurred late Wednesday (January 29), and according to President Trump, none of the 67 passengers survived.

HighlightsCaptain Sully identified nighttime conditions and the presence of water as contributing factors to the D.C. crash.He also described the technology at Reagan National Airport as “old.“Captain Sullenberger famously landed a plane in the Hudson River in 2009, an event later depicted on the big screen in ‘Sully.’

In an interview withThe New York Times,Captain Sullenberger explained what factors could have made avoiding the chopper harder.

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Captain Sully suggested that at least two factors may have made it more difficult for the American Airlines flight to see the helicopter before the D.C. crash

Rescue boats at night responding to DC plane crash, water illuminated by emergency lights.

Image credits:Andrew Harnik/Getty Images

Specifically, he pointed to nighttime and the presence of water.

“Nighttime always makes things different about seeing other aircraft — basically all you can do is see the lights on them,” Captain Sullenberger said on Thursday (January 30).

“You have to try to figure out: Are they above you or below you? Or how far away? Or which direction are they headed?”

“Everything is harder at night,” hesummarized.

Man in a suit with a pink tie, discussing a theory on a DC plane crash.

Image credits:Jason LaVeris/FilmMagic

The pilot remains cautious about drawing conclusions and assigning blame, as the cause of thecrash—the deadliest aviation disaster in the United States since 2001—is still under investigation.

“There would have been fewer ground lights visible over the water than over land at night,” he continued.” It might have made it a little bit harder to see. But that’s a supposition. We don’t know.”

Captain Sullenberger also mentioned the “old” technology in the Reagan National Airport, which is 5 miles (8 km) from Washington D.C. and is considered one of the country’s most challenging airports to navigate.

The airport, which opened in 1941, requires additional training for pilots who operate from it, fields heavy traffic, and has short runways, he said.

The commercial planecollidedwith the chopper ondescentinto Reagan National Airport, submerging both aircraft into the Potomac River

Plane crash site in DC with visible debris in water near the Capitol, highlighting theory of fewer ground lights visible.

Image credits:Al Drago/Getty Images

“It hasn’t changed much since then. Of course, we’ve added technology to it. But a lot of the technology is old.”

The National Transportation Safety Boardannouncedon Thursday that it was at the scene of the crash and was investigating.

Captain Sullenberger said he hoped that the cockpit voice recorder, the in-flight data recorder and air-traffic control radar data would shed light on what went wrong.

Man in a blue shirt and dark sweater discusses a plane crash theory involving fewer visible ground lights.

Image credits:ABC News

Speaking onGood Morning America, the famous pilot discussed the air traffic controlcommunications, in which the helicopter crew seemingly confirmed they were able to see the plane before the crash.

“There would have been fewer ground lights visible over the water than over land at night,” explained Captain Sullenberger, who famously landed a plane in the Hudson River in 2009

Man speaking about a DC plane crash theory, with text overlay discussing airplane visibility and air traffic control communications.

Captain Sullenberger stressed that the accident on Wednesday night came at an “exceptionally safe” moment in aviation history, but noted that more safeguards exist than people realize to maintain that safety, and a single mistake can trigger a domino effect, leading to a catastrophe.

“We’ve had to learn important lessons literally with blood too often, and we had finally gotten beyond that to where we could learn from incidents and not accidents.

“It’s hard to have the diligence and the dedication to adhere to best practices every minute of every hour of every day, every week, every month, and every year for a decades-long aviation career. Any lapse could potentially be fatal, even though we have a lot of safety.

“If all the dominoes line up in the wrong way, we could have on rare occasions a catastrophic event.

All 67 passengers are dead, confirmed President Donald Trump

Pilot in a cockpit, discussing fewer ground lights' impact on plane crash theory.

Image credits:Andrew Theodorakis/NY Daily News Archive

“Given enough time, given enough flights, given enough flight hours, eventually whatever can happen will happen unless we work very hard to prevent every incident from turning into an accident.

Image credits:WUSA9

The commercial planecollidedwith the chopper on descent into Reagan National Airport, submerging both aircraft into the icy waters of the Potomac River. All 67 passengers (64 on the plane, 3 on the helicopter) are dead, President Donald Trumpsaidin the White House press briefing room.

TheAmerican Airlines Flight 5342had taken off from Wichita, Kansas, and the helicopter was on a training flight with a crew based at Fort Belvoir in Virginia.

Sully said that the technology at the Reagan National Airport, which opened in 1941, is “old”

Plane in water with people standing on wings; related to Captain Sully’s theory on DC crash visibility issue.

Image credits:TIME

In January 2009, Captain Sullenberger landed an Airbus A320 in the Hudson River. That plane had encountered double engine failure after colliding with a flock of geese shortly after takeoff. All 155 people on board  survived the plane’s landing into the Hudson River.

The National Transportation Safety Board said it will issue a preliminary report into the recent crash within 30 days.

Normally, two people manage air traffic control for helicopters and airplanes flying in the area, but only one person was doing so at the time of Wednesday’s crash. According toThe New York Times, air traffic control staffing was noted as “not normal for the time of day and volume of traffic” in an internal Federal Aviation Administration (FAA) report.

Watch his statements below:

The cause of the crash remains a topic of heated debate

Comment discussing a plane and helicopters, suggesting it’s rare for both to be in the same area; related to fewer ground lights.

Facebook comment discussing Captain Sully’s theory on the DC plane crash and ground lights visibility issue.

Facebook comment about Captain Sully’s theory on DC plane crash tragedy.

Facebook comment on Captain Sully’s plane crash theory about ground lights visibility and blame.

Social media comment discussing a helicopter accident and expressing criticism towards the military.

Facebook comment questioning air traffic control after DC plane crash.

Facebook comment thanking Captain Sully for being the voice of reason, related to theory on DC plane crash.

Social media comment questioning military training near airport, related to Captain Sully’s theory on DC plane crash.

Comment on Sully’s positivity and condolences for DC plane crash victims.

Doug Dwyer’s comment on fewer ground lights visible in DC plane crash theory discussion.

Facebook comment discussing a theory on the DC plane crash by Captain Sully, mentioning ground lights visibility.

Facebook comment discussing potential human error and confusion with lights in a DC plane crash.

Comment about DC plane crash criticizing airport safety and military airspace use in Washington, DC.

Facebook comment discussing Captain Sully and a recent plane crash with a head-on collision comparison.

Comment appreciating Captain Sully’s aviation safety insight regarding the DC plane crash.

Comment emphasizes skill and preparedness importance in aviation with fewer ground lights visible.

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