VEHICLE DESCRIPTION: SCHOOL BUSES. SOME HEATER/DEFROSTER UNITS WERE BUILT WITH THE BLOWER MOTOR WIRED IMPROPERLY. WHEN WIRED IMPROPERLY THE BLOWER MOTOR RUNS BACKWARD AND AIRFLOW FOR HEATING AND DEFROSTING IS VERY LIMITED. THIS DOES NOT MEET THE REQUIREMENTS OF FMVSS NO. 103, "WINDSHIELD DEFROSTING AND DEFOGGING SYSTEMS."
DEFROSTING NEEDS MAY NOT BE ACHIEVED AND COULD RESTRICT DRIVER VISIBILITY, INCREASING THE RISK OF A CRASH.
OWNERS WILL BE INSTRUCTED ON HOW TO INSPECT AND REPAIR THE DEFECT BY SWITCHING THE CONNECTION OF TWO WIRES.
AMTRAN RECALL NO. 99308. OWNER NOTIFICATION BEGAN OCTOBER 22, 1999. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT AM-TRAN AT 1-800-993-7686.ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S AUTO SAFETY HOTLINE AT 1-888-DASH-2-DOT (1-888-327-4236).