In-flight structural failure of Continental Express aircraft

14 fatalities • Eagle Lake, United States of America • Flight

An aircraft experienced a mid-air breakup during its descent from FL240, resulting in the deaths of all 14 people on board.

What happened

During a descent from flight level 240, the aircraft experienced a catastrophic structural failure in mid-air. The upper portion of the T-tail, specifically the horizontal stabilizer, detached from the fuselage prior to the plane hitting the ground. The accident resulted in 14 fatalities, with no survivors among the occupants.

Findings

Post-accident inspections identified that 47 screw fasteners, which are essential for securing the left-side leading edge assembly of the horizontal stabilizer, were absent from the structure. These components had been removed during maintenance activities performed the previous evening.

Investigations determined that the maintenance crew, including mechanics, inspectors, and supervisors, failed to follow the FAA-approved procedures outlined in the general maintenance manual. This failure to comply with established maintenance protocols was a critical factor in the loss of structural integrity. Furthermore, it was noted that FAA oversight and routine surveillance of the Continental Express maintenance facility were insufficient to identify these procedural deficiencies.

Probable cause

The loss of structural integrity was caused by the failure to properly reinstall critical fasteners during maintenance operations.

Frequently asked questions

What happened in the 1991-09-11 Embraer EMB-120 Brasília accident near Eagle Lake, United States of America?

An aircraft experienced a mid-air breakup during its descent from FL240, resulting in the deaths of all 14 people on board.

Were there any fatalities in the 1991-09-11 Embraer EMB-120 Brasília accident?

The accident was fatal, resulting in 14 fatalities.

What aircraft was involved and where did it happen?

The accident on 1991-09-11 involved a Embraer EMB-120 Brasília, registration N33701, operated by Continental Express, at Eagle Lake, United States of America.

What was the probable cause of the accident?

The loss of structural integrity was caused by the failure to properly reinstall critical fasteners during maintenance operations.

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