Overview

• The NTSB published its final report on May 27, 2025, attributing the August 20, 2023 gear collapse to maintenance errors.
• Investigators found that excessive grinding during a July 5, 2018 overhaul generated heat damage and removed material, leading to a fatigue crack after about 4,000 flights.
• During the landing at John Wayne-Orange County Airport, the left main gear failed, forcing all 112 passengers and crew to evacuate via stairs without injuries.
• Sunvair, the MRO specialist in Valencia, California, performed the original overhaul and has since added an extra trunnion pin inspection to its process.
• The Boeing 737-800 sustained wing damage but was repaired and returned to service four months after the incident.