Aircraft Diverts After Left Main Landing Gear Failure (N59412)

Incident Overview and Response During a landing approach, the left main landing gear failed to extend when the pilot attempted to lower the gear. The pilot initiated a go-around and completed the required emergency procedures. Despite these efforts, the left main landing gear could not be lowered, prompting the pilot to divert to another airport. The aircraft eventually landed with the left main landing gear in the retracted position. The airplane sustained minor damage as a result of the landing. All 9 crew members and 141 passengers on board were uninjured. ## Investigation Findings An examination of the left main landing gear revealed a broken landing gear door actuator fitting. The investigation noted that several service bulletins had been issued outlining repetitive inspection procedures designed to prevent such failures. The operator had complied with all applicable service bulletins and airworthiness directives.