Accident Summary - continued

The crew declared an emergency and executed an emergency descent. There was an uneventful landing at Albuquerque, New Mexico. The oil tank in the No. 1 engine had been penetrated by fan blade debris and upon landing had lost all oil, and the No. 1 engine constant speed drive generator line was severed.

Engine No. 2 ingested fan debris and sustained minor foreign object damage.

The failure of a substantial number of oxygen masks to deploy appeared to result from multiple electrical failures.

Analysis of cockpit voice recorder data shows that the No. 3 engine accelerated from 97% N1 to 100% N1, fluctuated for a few seconds and failed at 100%; the flight data recorder was inoperative. Engines No. 1 and 2 also accelerated from 97% N1 to a maximum of 107% N1.

The photo on the right is of the No. 1 engine cowl showing impact damage from the No. 3 engine debris. Engine debris penetrated the oil tank resulting in total loss of engine oil upon landing.

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