Claim: KLM Flight 867, involving a Boeing 747-406M, en route from Amsterdam to Narita International Airport Tokyo experienced a quadruple engine failure due to blockage by volcanic ash on December 15, 1989.
Evidence: KLM Flight 867 Boeing 747-406M Amsterdam Airport Schiphol, Amsterdam, Netherlands Narita International Airport, Tokyo, Japan Quadruple engine failure due to blockage by volcanic ash 15 December 1989 (1989-12-15)