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Accident: Boeing 737-9

Jan 6, 2024 · Portland, OR

NTSB numberDCA24MA063Event id20240106193617

0
Fatalities
0
Serious injuries
8
Minor injuries
172
Uninjured

Probable cause

the in-flight separation of the left mid exit door (MED) plug due to Boeing Commercial Airplanes’ failure to provide adequate training, guidance, and oversight necessary to ensure that manufacturing personnel could consistently and correctly comply with its parts removal process, which was intended to document and ensure that the securing bolts and hardware that were removed from the left MED plug to facilitate rework during the manufacturing process were reinstalled. Contributing to the accident was the Federal Aviation Administration’s ineffective compliance enforcement surveillance and audit planning activities, which failed to adequately identify and ensure that Boeing addressed the repetitive and systemic nonconformance issues associated with its parts removal process.

NTSB docket DCA24MA063

Source: National Transportation Safety Board. Record last changed Oct 28, 2026, 10:54 UTC.

Aircraft involved

Aircraft
Boeing 737-9
Registration
N704AL
Year built
2023
Category
Airplane
Damage
Substantial
Operating rules
Part 121: air carrier
Defining event
Enroute-climb to cruise Part(s) separation from AC

Source: National Transportation Safety Board aviation accident database. Counts only; Voydar holds no names.

Nearest airports

Airports with a Voydar profile closest to the recorded position. Proximity only.

  • Portland Hillsboro Airport (HIO)10 nm (18 km) north-west
  • Portland International Airport (PDX)10 nm (19 km) north-east
  • Aurora State Airport (KUAO)12 nm (23 km) south

This page restates the NTSB's public record. Injury figures are counts; Voydar does not hold or publish the names of anyone involved.