Warnings about Boeing 737 Engine Issues

Federal regulators have recently raised urgent flags regarding the Boeing 737’s maximum engine, warning about the potential risk of engine failure that could lead to smoke filling the cabin and cockpit.

Damage to the engine’s oil system can cause heated oil to produce smoke, which then enters the plane’s ventilation system. This was highlighted in a report from the National Transportation Safety Board, released on Wednesday.

The warning stemmed from two incidents involving a Southwest Airlines flight where the CFM International Leap-1B engine malfunctioned after a bird strike, resulting in smoke entering the cabin.

In December 2023, a Boeing 737-8 experienced “acrid white smoke” shortly after departing from New Orleans, Louisiana, making it difficult for the captain to see the instrument panel, according to the NTSB.

Similarly, in March 2023, another flight faced issues after a bird strike, causing fog in the cabin shortly after taking off from Havana, Cuba.

Both incidents necessitated emergency landings, but thankfully there were no injuries reported, as stated by the Safety Department.

In light of these events, the NTSB has recommended replacing the engine on Boeing 737 Max planes as well as Airbus A32 jets. It also urged the Federal Aviation Administration to investigate whether the LEAP-1A and LEAP-1C engines might have similar problems.

Concerns were raised by the NTSB regarding flight crews, who may not be aware of the risks associated with smoke and how to respond to such incidents. The agency has called for the FAA to ensure that operators, including Boeing, inform crews about these smoke-related risks.

Boeing has mentioned that modifications to the pilot’s flight manual have already been made, outlining the necessary steps to prevent smoke from infiltrating the cockpit or cabin.

In a statement, Boeing noted, “CFM International and Boeing are collaborating on updates to their software design. We support NTSB recommendations.” Meanwhile, Ge Aerospace, the owner of CFM International, emphasized that it aligns with the NTSB’s recommendations and that work is already underway.