Hpamonontrailer

July 22, 2002

United States

HPA MONON TRAILER, INC.

ON CERTAIN TRAILERS EQUIPPED WITH WABCO 4S/2M SYSTEM, THE ELECTRICAL AND AIR CONNECTIONS ARE IMPROPERLY CONNECTED.

August 25, 1999

United States

HPA MONON TRAILER, INC.

VEHICLE DESCRIPTION: VAN TRAILERS. THESE TRAILERS DO NOT COMPLY WITH REQUIREMENTS OF FMVSS NO.

June 20, 1997

United States

HPA MONON TRAILER, INC.

VEHICLE DESCRIPTION: TRAILER CONVERTER DOLLIES. AN AIR LINE WAS CONNECTED TO AN INCORRECT PORT IN THE AIR VALVE CAUSING THE PARKING BRAKE TO BE INOPERATIVE.

September 3, 1996

United States

HPA MONON TRAILER, INC.

AIR BRAKE FITTINGS AND AIR BRAKE HOSES ON THE BRAKE ACTUATORS CAN BREAK BECAUSE OF INSUFFICIENT VERTICAL CLEARANCE UNDER THE AIR RESERVOIR.

April 30, 1996

United States

HPA MONON TRAILER, INC.

THESE AXLES CONSIST OF A STEEL TUBULAR CENTER SECTION AND FORGED STEEL SPINDLES THAT ARE WELDED TO EACH END OF THE TUBE. EITHER SPINDLE CAN CONTAIN A CIRCUMFERENTIAL CRACK THROUGH A PORTION OF ITS CROSS SECTION.

April 6, 1995

United States

HPA MONON TRAILER, INC.

THE AIR LINE CONNECTIONS WERE INCORRECTLY INSTALLED ON THESE TRAILERS CAUSING THE AIR BRAKE APPLICATION AND RELEASE TIMES TO BE SLOWER THAN REQUIRED BY FMVSS NO. 121, "AIR BRAKE SYSTEMS.

January 27, 1995

United States

HPA MONON TRAILER, INC.

MISSING WELDS IN THE UPPER COUPLER ASSEMBLY CAN LEAD TO FATIGUE CRACKS IN THE BOTTOM PLATE OF THE ASSEMBLY OVER A LENGTH OF TIME, CAUSING FAILURE OF THE UPPER COUPLER ASSEMBLY.

September 24, 1993

United States

HPA MONON TRAILER, INC.

THE LOWER FLANGE OF THE KING PIN CAN CRACK. THIS COULD CAUSE COUPLER SEPARATION.

August 3, 1987

United States

HPA MONON TRAILER, INC.

IRON PARTICLES INSIDE THE WHEEL HUBS COULD CREATE FRICTION CAUSING THE BEARING TO OVERHEAT.

March 26, 1973

United States

HPA MONON TRAILER, INC.