United States 91V066000

PACCAR Incorporated

ENGINE AND ENGINE COOLING — ENGINE COOLING SYSTEM:FAN · April 18, 1991

The problem

THE ENGINE FAN MAY EXPERIENCE A RESONANT FREQUENCY CAUSING PREMATURE FAN FAILURE, AND SEPARATION FROM THE ENGINE.

ENGINE FAN SEPARATION CAN CAUSE DEATH OR INJURY TO ANYPERSON IN THE PATH OF THE FAN.

REPLACE ENGINE FAN WITH FAN FROM ANOTHER MANUFACTURER.

Units 997