What happened
While performing a night flight toward San Jose, an aircraft entered its descent and approach phase for Long Beach Airport under visual meteorological conditions. During a circling approach at this unfamiliar airport, the crew encountered a rapid succession of mechanical emergencies. The failures began with the turbocharger system malfunctioning, followed by the loss of an alternator and a drop in engine oil pressure. Additionally, the pilots received an unsafe landing gear indication.
As the aircraft attempted to manage these issues, an in-flight fire developed, which was subsequently followed by a total loss of engine power. During the emergency, the pilot performed a flyby of the control tower to verify the status of the landing gear. Ultimately, the aircraft crashed into the southbound lanes of the San Diego freeway near Long Beach.
Findings
Investigations into the wreckage identified several critical maintenance and mechanical issues. The engine suffered from an improperly installed turbocharger, a cracked exhaust manifold, and a separated cylinder. Electrical issues were also present, specifically a burned main power lead. Furthermore, the hydraulic reservoir was found to have a low fluid level.
- Improper installation of the turbocharger by company maintenance personnel
- Exhaust system failure and disengagement
- Separation of an engine mounting bolt
- The pilot's decision to continue the approach despite multiple failures
- Low hydraulic fluid levels
- Electrical wiring damage due to fire