Boeing 777 Landing Gear

Landing Gear

Boeing B777 landing gear is the largest landing gear and the largest tires ever used in a commercial jetliner. Each main gear tire of a 777-300ER carries a maximum rated load of 64,583 lb (29,294 kg) when the aircraft is fully loaded, the heaviest load per tire of any production aircraft ever built.

Boeing 777 has retractable tricycle-type landing gear. Measco and Messieur Bugatti developed the main landing gear under a joint agreement, which features six-wheeled bogies. Control of the steering rear axles is automatically linked to the steering angle of the nose gear.

The Triple Seven main landing gear is fitted with Honeywell Carbenix 4000 brakes. Initial activation of the brakes during taxiing applies the brakes to alternate groups of three wheels only in order to minimise wear on the brakes. The nose gear is twin-wheeled and is steerable.

Landing Gear Incident

On March 1, 2005, after a PIA Boeing 777-200ER landed at Manchester International Airport, England, fire was seen around the left main landing gear. The crew and passengers were evacuated and fire was put under control. Some passengers suffered minor injuries and the aircraft sustained minor damage.

On January 17, 2008, British Airways Flight 38, a 777-200ER flying from Beijing to London, crash-landed approximately 1,000 feet (300 m) short of London Heathrow Airport's runway 27L, and slid onto the runway's threshold. This resulted in damage to the landing gear, wing roots and the engines.