On the afternoon of 24 November 1971 — the day before Thanksgiving — a quiet man in a dark suit, white shirt and black tie paid cash for a one-way ticket at Portland International Airport. He gave the name Dan Cooper. He took seat 18C on Northwest Orient Airlines Flight 305, a Boeing 727 making the short hop to Seattle, ordered a bourbon and soda, and lit a cigarette. Shortly after takeoff he passed a note to a flight attendant, Florence Schaffner, who assumed it was a pass and dropped it unread into her purse. He leaned over. 'Miss, you'd better look at that note. I have a bomb.'
The note demanded $200,000 in 'negotiable American currency' and four parachutes. Cooper opened his briefcase far enough to show Schaffner a tangle of red cylinders, wires and a battery, then closed it. He was, everyone later agreed, unnervingly calm and polite — he paid for his drinks and even offered the crew money for their trouble. The plane circled Seattle for about two hours while the airline, the FBI and the banks assembled the ransom: ten thousand $20 bills, all hurriedly photographed so their serial numbers were on record, plus two front and two back parachutes.
At Seattle-Tacoma airport, Cooper released all 36 passengers and Schaffner in exchange for the money and parachutes, keeping several crew members aboard, including flight attendant Tina Mucklow, who had spent the flight as his main intermediary. Then he issued his flight plan: take off for Mexico City, fly low — around 10,000 feet — with flaps at 15 degrees, landing gear down and the cabin unpressurised, at the slowest safe speed. The crew told him they'd need to refuel in Reno. Fine, he said. The demands revealed a man who knew something very specific about the Boeing 727: it is one of the very few airliners with a built-in staircase in the tail — the aft airstair — which can be opened in flight.
Into the storm
Flight 305 took off again just after 7:30 pm into cold rain and darkness, trailed at a distance by military jets. Cooper ordered the crew to the cockpit and stayed alone in the cabin. Around 8:13 pm, somewhere over the rugged forests of southwestern Washington, the crew felt a pressure bump and noticed the aft stairs were down. When the plane landed in Reno, the stairs were scraping the runway and the cabin was empty. Dan Cooper had jumped into a stormy November night, in a business suit and loafers, with 21 pounds of twenty-dollar bills tied to his body — into freezing wind and cloud, over some of the most unforgiving terrain in the Pacific Northwest.
He left behind his clip-on black tie, a tie clip, and two of the four parachutes. He has never been seen since. A wire-service mix-up in the earliest reporting attached the initials of a briefly questioned (and immediately cleared) man named D. B. Cooper to the story, and the wrong name stuck forever: the hijacker had only ever called himself Dan Cooper.
The FBI's investigation, code-named NORJAK, became one of the longest in the bureau's history. Hundreds of suspects were considered; a massive ground and air search of the projected drop zone found nothing. Many agents came to believe Cooper never survived the jump — the placard later determined to be missing from the plane, the weather, the terrain and his lack of proper gear all argued against it. And yet no body, no parachute and no money surfaced.
The money on the beach
Almost. In February 1980, an eight-year-old boy named Brian Ingram, digging a fire pit on a Columbia River sandbar called Tena Bar near Vancouver, Washington, uncovered three crumbling bundles of decayed $20 bills — $5,800 in total, still in their rubber bands. The serial numbers matched the ransom. It remains the only piece of the money ever recovered, and it deepened the mystery rather than solving it: Tena Bar doesn't fit neatly with the calculated flight path and drop zone, and how the bundles got there — carried by river, buried by hand, dredged up — has been argued about ever since.
The case reshaped aviation. Cooper's stunt inspired a wave of copycat hijackings in 1972 — including Richard McCoy Jr., who pulled off a strikingly similar jump and was caught within days — and the industry responded. Boeing 727s were fitted with a simple aerodynamic latch, officially the aft airstair lock but universally known as the 'Cooper vane,' which prevents the tail stairs from opening in flight. Airport passenger screening tightened across the United States in the years that followed.
The FBI formally closed the case in July 2016, after 45 years, while leaving the door open for physical evidence — specifically the parachutes or the money — to reopen it. Amateur sleuths never stopped: particles found on Cooper's tie, including unalloyed titanium, have fuelled theories that he worked in aerospace or specialty metals, and a rotating cast of suspects — Richard McCoy, Kenneth Christiansen, Duane Weber, Robert Rackstraw and others — has been proposed and never proven. One charming lead notes that 'Dan Cooper' is the hero of a French-language Belgian comic series about a daring test pilot, suggesting a hijacker with a francophone past. It remains the only unsolved commercial airliner hijacking in American history: one polite man, one perfect alias, and a hole in the night sky over Washington.
Quiz nuggets
- On 24 November 1971, 'Dan Cooper' hijacked Northwest Orient Flight 305, a Boeing 727, and parachuted from its aft airstair with $200,000; the name 'D.B.' came from a press error.
- In 1980, a boy named Brian Ingram found $5,800 of the ransom money on Tena Bar, a Columbia River sandbar — the only cash ever recovered.
- The 'Cooper vane' was added to 727s after the hijacking to stop the rear stairs opening in flight.
- The FBI's NORJAK investigation ran 45 years before the case was closed, still unsolved, in July 2016.
- It remains the only unsolved commercial airliner hijacking in US history.