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DOT Inspector Raises Concerns Over FAA Response

April 1, 2026

2 min read

Key Takeaways

DOT inspector criticizes FAA's response to Leap engine smoke incidents.
FAA intends to mandate software update to address issue.
Update may take until mid-2028 to be installed across fleet.
EASA warns of similar events affecting Leap-1As.

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Strategic Implications

The DOT inspector's concerns may indicate a need for more proactive regulatory action in addressing safety issues. The lengthy timeline for the software update could suggest challenges in implementing solutions, which may impact public perception of the FAA's effectiveness in ensuring aviation safety.

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What Happened

Leap Engine Smoke Incidents Spark Regulatory Review

A US Department of Transportation inspector has raised concerns about the Federal Aviation Administration’s response to engine-related issues causing smoke in Boeing 737 Max cabins or cockpits. The issue involves CFM International Leap turbofans and has prompted a software update, which the FAA intends to mandate. GE and Boeing are working to address the problem, with the update expected to be installed across the fleet by mid-2028. The DOT’s Office of Inspector General report includes several recommendations, which the FAA says it will implement, as reported by FlightGlobal.

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