On November 26, an 
American Airlines Boeing 737-800 operating a flight from Miami to El Salvador diverted to Belize after smoke was reported in the rear of the cabin. The crew first detected a strange odor and light vibrations, and later shut down one of the engine before diverting to Belize City, as reported by The Aviation Herald.
The aircraft landed safely, and emergency services were mobilized on arrival, although they were not needed. The aircraft involved is one of the oldest 737-800s in American’s fleet, and it has not operated any flights since the diversion. Authorities are currently investigating what went wrong.
Technical Issue Prompted Boeing 737-800 Diversion
The Boeing 737-800 involved, registration N951AA, was operating American Airlines flight AA327 from Miami International Airport (MIA) to San Salvador Airport (SAN). According to Flightradar24 data, the aircraft departed Miami at roughly 10:35 local time and was scheduled to arrive in El Salvador at 12:20. Around 11:49, while cruising at FL310, the crew reported technical issues. When the aircraft was about 160 nautical miles east of Belize City, the pilots shut down the right engine, descended to FL290, and initiated a diversion to Belize Philip Goldson International Airport (BZE).
The aircraft landed safely, and emergency teams, including fire, rescue, and ambulance units, were deployed as a precaution. American Airlines confirmed that 177 passengers and crew were on board and that onward travel arrangements were made. The passengers completed their journey on another Boeing 737-800, registration N876NN, which arrived in El Salvador at approximately 20:28 local time. Authorities are now investigating a possible engine malfunction, and N951AA remains grounded at Belize Airport while inspections continue.
The Grounded Aircraft Is Among The Oldest 737-800s In American’s Fleet
According to ch-aviation data, American currently operates a fleet of around 303 Boeing 737-800 aircraft. The aircraft involved, N951AA, is one of the oldest 737-800s in its fleet, as per Planespotters.net. It was delivered in December 2000 and has recently been operating a range of short- and medium-haul routes from Miami, including services to San Antonio, Punta Cana, Oranjestad, and Montego Bay. Notably, the aircraft is painted in “Astrojet” retro livery, which pays tribute to one of American’s mid-20th-century paint schemes.
American maintains a number of retro-painted aircraft that reference its merger history. As most of you know, the 
oneworld alliance member was formed through several mergers, most prominently with US Airways in 2013, as well as earlier integrations with AirCal, TWA, Reno Air, and PSA. Its retro jets reflect this lineage. Some of its recent examples include the TWA-themed Boeing 737-800 (N915NN), the Reno Air 737-800 (N916NN), the AirCal 737-800 (N917NN), and the US Airways A321 (N578UW).
In addition, American has also started preparing for its 100th anniversary in 2026. Last month, it introduced a new retro-style livery on a Boeing 777-300ER, registered N735AT. The aircraft entered service this month and features a modern interpretation of one of American’s earliest liveries.
Here’s What Inspired American Airlines To Introduce Its Special Boeing 777-300ER Retro Livery
The iconic livery that once defined American’s identity is making a comeback.
American Airlines Recent Diversion Due To Toxic Fumes Onboard
A few days earlier, on November 23, another American Airlines flight also diverted due to an onboard odor. Flight 2118 from Orlando to Phoenix, operated by a 10-year-old Airbus A321-200 registered N139AN, was cruising over the Gulf of Mexico when the crew reported toxic fumes in the cabin. The aircraft diverted to Houston, where it landed without further issues. As a precaution, four flight attendants and one passenger were taken to a nearby hospital for evaluation.
Such events are one of the more common reasons for diversion and can vary significantly in severity. When a strong or persistent odor is detected, flight crews typically land as soon as possible due to the risks associated with prolonged exposure. These events occur when engine oil, hydraulic fluid, or other contaminants enter the cabin’s bleed-air system. Inhaling contaminated air can lead to nausea, vomiting, cognitive impairment, and, in severe cases, loss of consciousness.
