19960105007659I

Narrative: on January 5, 1996, about 1230 pacific standard time, a Boeing 747-251B, N628US, sustained an uncontained failure of the number 2 engine turbine section during the enroute climb phase of flight near Los Angeles, California. The aircraft was operated by northwest airlines, inc., as their flight number 1, a regularly scheduled non-stop international passenger flight from Los Angeles to narita airport, tokyo, japan. Visual meteorological conditions prevailed at the time and an IFR flight plan was filed for the flight. The aircraft sustained minor damage to the numbers 1 and 2 engine cowls, and the fan stage of the number 1 engine. None of the 366 passengers and 19 crew on-board were injured. The flight originated from Los Angeles International Airport about 1200 on the morning of the incident. In a verbal report to northwest airlines, the flight crew said that the number 2 engine fire warning illuminated during climb about 20 minutes after takeoff. The crew discharged a fire bottle to the affected engine and secured it. The crew dumped 147,000 pounds of fuel and returned to Los Angeles, where an uneventful landing was made at 1300. Post accident inspection of the aircraft revealed a 2-foot hole in the engine cowl turbine area at the 9 o'clock position. No evidence of fire was observed. Minor dents were noted on the number 1 engine cowl and several fan blades were found with nicks and leading edge damage. This incident is closed.