The National Transportation Safety Board conducted a major aviation investigation regarding a Boeing 737 door plug separation. The investigation identified that inadequate training, guidance, and oversight by Boeing led to a mid-exit door plug blowout.
The Federal Aviation Administration was cited for ineffective oversight regarding known recordkeeping issues at Boeing. Additionally, Boeing faced sanctions for sharing non-public investigative information with the media during the 737 Max 9 door plug investigation.
Related investigative proceedings included a public board meeting scheduled for June 24, 2025. The agency also held an investigative hearing for Alaska Airlines Flight 1282 on August 7, 2024.
The NTSB has recommended that all cockpit voice recorder-equipped airplanes be retrofitted with 25-hour CVRs, though the existing fleet was excluded from the FAA proposal.
