A Boeing 767 cargo jet operating for Amazon overran a runway at Miami International Airport on September 6, killing five ground workers, and the carrier behind the flight had faced whistleblower complaints about its safety culture for years.
The plane, operated by North Carolina-based 21 Air under contract with Amazon Prime Air, was traveling roughly 180 miles per hour when it touched down. It never stopped. The jet barreled approximately 1,300 feet past the end of the runway, struck a van on airport grounds, broke through the perimeter fence, and hit a Toyota Corolla Cross on a public road outside the airport. Five workers for an unnamed plane-cleaning company died. Five more people were injured, three of them critically.
NTSB Chair Jennifer Homendy described the scene in a single word: "devastating, utter devastation." Fuel covered the wreckage area. Recovery of victims took priority over the investigation's early hours. But the data the NTSB has released since then raises pointed questions, not just about what happened on that runway, but about why Amazon entrusted its cargo to this carrier in the first place.
Details from the cockpit voice recorder and flight data recorder, released by the NTSB the week of the crash, paint a grim picture of the final approach. One pilot repeatedly warned the other that the aircraft was coming in too fast. Those warnings continued for approximately two minutes, through the final approach, through touchdown, and beyond. The other pilot never gave "a consistent verbal response," the NTSB's cockpit voice recorder summary stated.
The flight data recorder confirmed the approach was unstable, conducted in strong winds. Automatic cockpit warning signals were active. After the jet touched down, the crew briefly attempted a go-around, advancing the throttles and releasing the brakes, but abandoned the effort roughly four seconds later. By then it was too late.
Ross Aimer, a retired airline captain with 60 years of flying experience who now runs Aero Consulting Experts, did not hold back. As NPR reported, Aimer called it the worst crew performance he had ever seen:
"In my 60 years of flying, I've never seen such a terrible performance from a crew. It was a very, very unstable approach from the beginning, from the get go. These fellows should have gone around long before even getting close to that airport."
The NTSB also disclosed that the captain had been certified on the Boeing 767 for less than five months. The first officer had held that certification for less than 18 months. For a widebody cargo jet hauling freight into one of the busiest airports in the Southeast, that is a thin margin of experience.
Federal investigators are still working to determine the precise cause of the crash, and the NTSB has not issued a probable-cause finding. But the early evidence already points to a crew that flew an unstable approach into Miami, ignored or failed to act on repeated warnings, and ran out of runway with catastrophic results.
The crash did not come as a surprise to people who had worked inside 21 Air. Karl Seuring, a veteran pilot and former president of the company's pilot union, told NPR he and his colleagues had long feared exactly this kind of disaster:
"We anticipated and we feared it. And we knew the day would come, and there wasn't anything we could do."
Seuring said he was fired in 2022 for raising concerns about 21 Air's safety standards. He filed a federal whistleblower lawsuit. Documents from that case, shared with NPR by Seuring's attorney Mike Anello, show a pattern of internal alarm that went unheeded. Seuring alleged he was told repeatedly that "it's not going to change."
He was not alone. Don Helmig, 21 Air's departing safety director, wrote an email to the company's owner in 2021 that pulled no punches:
"Everywhere I looked there are issues. In my opinion, what they wished me to do is say nothing, but that is not how Safety is supposed to operate."
Helmig accused company leaders of paying "lip service" to safety.
Multiple former employees went further. Former pilots and staff filed legal complaints with OSHA and the Department of Labor, alleging that 21 Air deferred maintenance on its aging fleet, pressured pilots to fly with inadequate rest periods, and discouraged employees from documenting safety concerns. The Boeing 767 that crashed was 33 years old, well beyond the typical 20-to-25-year phase-out period for commercial aircraft, according to the New York Post.
Retired 21 Air pilot Tony Bless put it bluntly: "It's something a lot of us ex-21 Air pilots have been anticipating for a while."
21 Air's then-CEO, whose name was not disclosed in the reporting, pushed back on the allegations in testimony for the Seuring lawsuit. He denied that the company discouraged employees from reporting safety concerns and said 21 Air follows "all the rules." In a separate statement to The Wall Street Journal, the company said it had focused on "deploying the right training, protocols and procedures in all aspects of operational safety."
21 Air did not respond to NPR's requests for comment.
Amazon Prime Air does not operate its own planes. It contracts with outside carriers. Aviation analytics firm Cirium reported that Amazon currently uses nine different air carriers, with more than 100 planes in service across the network. 21 Air operates eight of those planes. The carrier also flies for DHL.
The arrangement lets Amazon move packages without maintaining its own fleet or employing its own pilots. But it also raises the question Aimer posed directly: "Why is it that a major company, a very rich company like Amazon Prime, is contracting their flying to several of what I would call fly by night operations like 21 Air?"
Aimer pointed to a structural problem in the cargo aviation industry. Smaller carriers like 21 Air often struggle to attract and retain experienced pilots because they cannot match the pay and benefits offered by major operators like UPS and FedEx. Seuring echoed the point:
"If we want to get experienced pilots here, we have to be willing to compensate them. And then, unfortunately, when that was lower than standard, guys would simply go elsewhere with opportunities that looked more promising."
Aimer put it more directly: "They attract guys that are not that experienced. And even if they are, they're only looking to get on to a better job, like with UPS, with FedEx."
This is not the first time an Amazon-contracted cargo flight has ended in disaster. In 2019, an Atlas Air Boeing 767 operating for Amazon crashed into Trinity Bay near Houston, killing two crew members and one passenger. The NTSB found the probable cause was pilot error. Atlas Air no longer flies for Amazon.
In 2024, a Cargojet Boeing 767 operating for Amazon overran the runway at Vancouver International Airport after the crew reported mechanical problems with the wing flaps. No one was injured, and the plane was later repaired and returned to service. Cargojet remains among Amazon's contracted carriers.
Separately, a UPS cargo jet exploded shortly after takeoff in Louisville, Kentucky, in November of an unspecified year, killing all three crew members and 12 people on the ground. The NTSB investigation focused on a faulty part in an engine bracket on the McDonnell Douglas MD-11. The Miami runway lacked an engineered materials arresting system, a safety feature designed to slow planes that overrun paved surfaces, which the NTSB investigation is also examining.
NTSB Chair Homendy made clear at a press briefing after the crash that investigators intend to examine the contractual relationship between Amazon and 21 Air:
"We're going to want to see what that relationship is. Who does what? What safety provisions might be in any sort of contracts or any sort of policies? And then we'll see from there we might even have additional information that we seek."
At a second briefing the following day, Homendy said she was not familiar with the history of safety complaints against 21 Air. She encouraged the public to share any information relevant to the investigation.
Amazon spokesperson Kelly Nantel issued a statement emphasizing the company's commitment to safety: "Nothing is more important to us than safety, this includes the safety of the people who operate flights in our network, the safety of the communities around the airports we use, and the safety of the people who handle our cargo."
On the whistleblower allegations, Nantel added: "We believe the allegations pre-date our relationship with the company and the current leadership team at 21 Air. Nonetheless, we take any allegation related to safety with the utmost seriousness." Amazon also noted that the FAA certifies the carriers it contracts with.
That defense, that the FAA certifies the carriers, so Amazon bears no responsibility for their safety culture, may satisfy a corporate legal team. It is unlikely to satisfy the families of the five workers who died on the ground, or the investigators now combing through two minutes of ignored cockpit warnings.
NPR disclosed that Amazon is a financial supporter of the network. Several key questions remain unanswered as the NTSB investigation continues: whether Amazon's contracts with 21 Air contained specific safety provisions, whether the FAA took any independent action in response to the years of whistleblower complaints, and what specific safety deficiencies Seuring raised that led to his firing.
One pilot reportedly told his wife after the crash that his career was over. Five ground workers never got to go home at all.
When a company worth hundreds of billions of dollars farms out its flying to the lowest bidder, and whistleblowers spend years warning that the arrangement is unsafe, and five people end up dead, the question is not whether someone should have seen it coming. The question is why no one acted when they did.
