United Airlines says that it has found loose bolts during inspections of its 737 Max 9 fleet in the wake of a door plug getting blown out of an Alaska Airlines plane.

After 18 months, NTSB to hold hearing on Alaska 737 door plug incident revealing maintenance errors and missing bolts.

WATCH: NTSB chair says systemic failures led to door plug flying off Alaska Airlines’ Boeing 737 Max midflight Nation Updated on Jun 24, 2025 1:42 PM EDT — Published on Jun 24, 2025 9:16 AM EDT ...

'This Should've Been Caught Years Ago:' Boeing Faces NTSB Heat Over 737 MAX 9 Alaska Airlines Mid-Air Blowout Incident ...

Systemic failures led to a door plug flying off Alaska Airlines’ Boeing 737 Max, NTSB says By Associated Press Published June 25, 2025, 9:33 a.m. ET ...

After a year and half of investigating, the top U.S. aviation investigator formally determined that Boeing and its chief regulator were to blame for the Alaska Airlines blowout.

Boeing failed to provide adequate training, guidance and oversight to prevent a mid-air cabin panel blowout of a new 737 MAX 9 flight in January 2024 that spun the planemaker into a major crisis ...

The heroic actions of the crew of Alaska Airlines flight 1282 ensured everyone survived last year when a door plug panel flew off the plane.

NTSB says systemic failures led to door plug flying off 737 Max plane midflight The blow out during Alaska Airlines flight 1282 happened minutes after it took off from Portland in January of 2024.

During the investigation, both Alaska Airlines and United Airlines found loose bolts on their 737 Max 9 planes. United Airlines reported that at least 5 airplanes had loose bolts.