American Airlines Flight 37 Diverts to JFK After Six Toilets Fail

American Airlines Flight 37 made an unscheduled stop at New York's John F. Kennedy International Airport (JFK) on Tuesday, 6 October, after six of the Boeing 777-200ER's eight lavatories became inoperative during a transatlantic crossing from Madrid to Dallas. The aircraft, registered N772AN, had 287 passengers and crew on board.

The diversion was not the result of any fault with the aircraft's engines or flight controls. It was driven entirely by the loss of lavatory capacity on a flight that still had several hours to run.

What Happened on American Airlines Flight 37

Aviation24.be reports that the aircraft departed Adolfo Suárez Madrid-Barajas Airport (MAD) at around 10:26 a.m. local time. After more than seven hours in the air, it landed at JFK at 12:27 p.m. EDT.

As the Boeing 777-200ER approached New York, the crew informed air traffic control of the situation. The pilot told controllers: "We have only two potties operating on board for American 37." The controller replied: "You said only two potties. Is that right?" The pilot answered: "That's affirmative."

The crew then declared a pan-pan, the international urgency signal used when a situation requires attention but does not pose an immediate threat to life.

The Pan-Pan and the Weight Consideration

The Federal Aviation Administration confirmed that "American Airlines Flight 37 landed at JFK International Airport in New York after the crew reported an inadequate number of operational lavatories." The FAA did not indicate any problem with the aircraft's flight systems or propulsion.

As Aviation A2Z notes, the aircraft had more than four hours of fuel remaining at the time of the diversion. That meant the Boeing 777-200ER was heavier than it would normally be at landing, which can increase braking requirements and raise the possibility of higher brake temperatures. The aircraft landed safely regardless.

Six of Eight Lavatories Lost

The Boeing 777-200ER operating Flight 37 has eight lavatories in total. Six became unavailable during the flight, leaving only two functioning for all 287 people on board.

Aviation24.be reports that the cause of the lavatory failures has not been disclosed. The crew determined that continuing to Dallas-Fort Worth (DFW) with just two operational bathrooms was not practical, and diverted to JFK instead.

You can find full details on the aircraft type and operator using our Aircraft Search tool.

Why Lavatory Failures Are Taken Seriously

Aircraft lavatories rely on differential air pressure to operate rather than conventional plumbing. Nigel Jones, a former engineer for British Airways, told CNN in 2024 that blockages are a common cause of failure. "It's only a tiny pipe, and people put things like (diapers) down," he said. "I've seen cutlery go down, and (soft drink cans). They're fascinated to see whether it will go down or not."

Jones added: "It can take days to rectify because there's an awful lot of pipework, and it has to be broken down to find the blockages."

On a long-haul transatlantic service, two functioning lavatories for nearly 300 people would place significant strain on the remaining facilities and on passengers and crew alike.

Three Hours at JFK, Then On to Dallas

FlightAware tracking data, cited by Aviation24.be, shows that N772AN remained at JFK for almost three and a half hours. The aircraft departed New York at around 3:56 p.m. local time and landed at Dallas-Fort Worth at approximately 6:13 p.m. CDT, completing the journey to its intended destination.

The diversion added a substantial delay to the service but did not result in a reported safety incident at any stage of the flight.

The Bottom Line

This incident is a reminder that operational issues well removed from an aircraft's engines or flight controls can still be sufficient to prompt a diversion on a long-haul route. Losing six of eight lavatories with hours of flying still ahead left the crew with little realistic alternative to an unscheduled stop.

You can follow this and similar events through our Squawk 7700 hub, which tracks live aviation emergencies and maintains an archive of incidents. We will update our coverage if American Airlines or investigators release further information on the cause of the lavatory failures aboard N772AN.

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