Chance AH-28 recalls by model year

Reported: 1993-11-24 (November 24, 1993) · Model years: 1992, 1993

THE PASSENGER ACCESS DOORS ARE EQUIPPED WITH DIFFERENTIAL AIR MOTORS FOR THE DOOR OPENING AND CLOSING OPERATION. DUE TO THE SIZE AND CONSTRUCTION OF THE DOORS, THE MOTORS THAT HOLD THE DOORS CLOSED CAN BE OVERPOWERED AND THE DOORS CAN BE FORCED OPEN BY A PASSENGER PUSHING AGAINST THEM.

Consequence: IF THE VEHICLE IS IN MOTION AS THE DOORS ARE PUSHED OPEN,THE PARKING BRAKES WILL SET, STOPPING THE VEHICLE SUDDENLY. THIS COULD RESULT ININJURIES TO STANDING PASSENGERS. IF THE DOORS CAN BE PUSHED OPEN WIDE ENOUGH,A PASSENGER MAY FALL OUT OF THE MOVING VEHICLE, CAUSING SERIOUS INJURIES.

Remedy: AN UNLOADER KIT WILL BE ADDED TO DUMP THE AIR OFF OF THE SMALL CYLINDER SIDE OF THE DOOR MOTOR TO INSURE THAT THE DOORS ARE POSITIVELY LOCKED AND CANNOT BE FORCED OPEN.

Reported: 2001-01-15 (January 15, 2001) · Model years: 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001

VEHICLE DESCRIPTION: STREETCARS. ABRASION TO INSULATION ON SOME POSITIVE POWER CABLES CAN RESULT IN THE GROUNDING OF THE POWER CABLE.

Consequence: THE ARCING AND HEAT GENERATED AS A RESULT OF THE GROUNDED CABLE CAN RESULT IN THE COMBUSTION OF INSULATION, PAINT, UNDER-COATING, AND OTHER CHASSIS COMPONENTS.

Remedy: OWNERS/OPERATORS WILL BE REQUESTED TO IMMEDIATELY INSPECT THEIR VEHICLES FOR POWER CABLE ABRASION DAMAGE AND REMOVE THE UNITS WITH VISIBLE CABLE DAMAGE FROM SERVICE. THEY WILL BE SHIPPED REPLACEMENT PARTS AND INSTRUCTIONS FOR REPAIR IMMEDIATELY. OWNER/OPERATORS WITH UNITS THAT HAVE NO VISIBLE CABLE DAMAGE WILL BE SHIPPED REPLACEMENT PARTS AND INSTRUCTIONS AS SOON AS THE PARTS BECOME AVAILABLE. ALL PARTS WILL BE AVAILABLE WITHIN 30 DAYS. OWNER NOTIFICATION IS EXPECTED TO BEGIN DURING JANUARY 2001. OWNERS WHO DO NOT RECEIVE THE FREE REPAIR PARTS AND INSTALLATION INSTRUCTIONS WITHIN A REASONABLE TIME SHOULD CONTACT CHANCE AT 1-888-391-1777.

Reported: 1996-12-23 (December 23, 1996) · Model years: 1993, 1994, 1995, 1996

THE FASTENERS SECURING THE COMPRESSED NATURAL GAS (CNG) ROOF-MOUNTED FUEL TANK LIDS WERE NOT PROPERLY INSTALLED AND/OR MAINTAINED.

Consequence: IF THE FASTENERS FAIL TO HOLD THE FUEL TANK LIDS PROPERLY, THE LIDS WOULD COME OFF DURING THE OPERATION OF THE VEHICLE INCREASING THE RISK OF A VEHICLE ACCIDENT.

Remedy: CHANCE COACH IS DEVELOPING A MODIFICATION KIT TO ENHANCE THE FASTENING OF THE ROOF FUEL TANK. UNTIL THAT KIT IS AVAILABLE, OWNERS SHOULD MAKE SURE THAT THE FUEL TANK IS SECURELY FASTENED.

Reported: 1997-08-07 (August 7, 1997) · Model years: 1993, 1994, 1995, 1996, 1997

VEHICLE DESCRIPTION: COMPRESSED NATURAL GAS (CNG) TRANSIT BUSES. THE FUEL TANK SUPPORT STRUCTURE CAN FRACTURE.

Consequence: FAILURE OF THE FUEL TANK SUPPORT STRUCTURE CAN RESULT IN FUEL LEAKAGE INCREASING THE RISK OF A VEHICLE FIRE.

Remedy: DEALERS WILL INSPECT THE WELDS ON THE FUEL TANK SUPPORT STRUCTURE (CUPOLA) AND REPAIR AS NECESSARY.

Reported: 1998-10-09 (October 9, 1998) · Model years: 1993, 1994, 1995, 1996, 1997

VEHICLE DESCRIPTION: COMPRESSED NATURAL GAS (CNG) FUELED STREETCARS. THE FUEL TANK SUPPORT STRUCTURE (CUPOLA) WAS IMPROPERLY FASTENED. THESE FASTENERS COULD LOOSEN OVER TIME, CAUSING COMPLETE STRUCTURAL FAILURE ON THE CUPOLA.

Consequence: THIS CONDITION CAN LEAD TO CNG LEAKAGE, INCREASING THE RISK OF FIRE.

Remedy: DEALERS WILL INSPECT THESE STRUCTURES AND REPAIR AS NECESSARY.

Reported: 1999-07-22 (July 22, 1999) · Model years: 1993, 1994, 1995, 1996, 1997, 1998, 1999

VEHICLE DESCRIPTION: STREETCARS AND TRANSIT COACHES . THE TRANSMISSION CONTROL CABLE CAN RUB AGAINST THE ELECTRICAL JUNCTION BOX POWER STUD ALLOWING BATTERY CURRENT TO FLOW DIRECTLY TO GROUND.

Consequence: ELECTRICAL ARCING CAN IGNITE COMBUSTIBLE MATERIALS IN THE JUNCTION BOX, INCREASING THE RISK OF PROPERTY DAMAGE AND PERSONAL INJURY.

Remedy: DEALERS WILL SECURE THE CABLE AWAY FROM THE JUNCTION BOX POWER STUD WITH A CLAMP THAT IS SECURED TO THE FLOOR BY A SCREW AND WASHER; AND THE JUNCTION BOX POWER STUD WILL BE INSULATED WITH A RUBBER BOOT.

Reported: 2002-07-23 (July 23, 2002) · Model years: 1999, 2000, 2001, 2002

ON CERTAIN STREETCARS (DIESEL AND CNG MODELS) AND RT-52 DIESEL COACHES MANUFACTURED WITH AT-545 AND MT643 TRANSMISSIONS WHICH USE A MANUAL TRANSMISSION CONTROL CABLE. THE TRANSMISSION CONTROL CABLE MAY RUB AGAINST THE JUNCTION BOX POWER STUD LOCATED ON THE BOTTOM OF THE JUNCTION BOX.

Consequence: LONG-TERM WEAR CAN ALLOW THE POWER STUD TO SHORT TO GROUND THROUGH THE TRANSMISSION CONTROL CABLE, RESULTING IN ELECTRICAL ARCING AND THE IGNITION OF COMBUSTIBLE MATERIALS IN THE JUNCTION BOX COMPARTMENT.

Remedy: DEALERS WILL INSPECT THE VEHICLE TO DETERMINE IF EITHER THE POWER STUD INSULATION BOOT AND/OR THE TRANSMISSION SHIFT CABLE CLAMP IS MISSING. BOTH THE INSULATION BOOT AND THE CLAMP WILL BE INSTALLED IF MISSING. OWNER NOTIFICATION IS EXPECTED TO BEGIN DURING JULY 2002. 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 CHANCE COACH AT 1-888-391-1777.