The issue
ELECTRICAL WIRING MAY BE CHAFED BY THE SHARP EDGE OR CORNER OF THE AMMETER SHUNT SHIELD LOCATED ON THE CHASSIS. CHAFING OF THE WIRING INSULATION CAN RESULT IN A SHORT-CIRCUIT AND POSSIBLE ELECTRICAL FIRE. BUSES EQUIPPED WITH BRITISH COLUMBIA BT75 SPECIFICATION AIR BRAKE SYSTEMS. THE AIR LINE FROM THE RELAY VALVE TO THE TREADLE VALVE MAY HAVE BEEN CORSSED WITH THE AIR LINE FROM THE R-8 MODULATOR VALVE. THESE LINES ARE CORSSED AT THE TREADLE VALVE. THIS CONDITION WOULD RESULT IN A LOSS OF SERVICE BRAKES SHOULD THE AIR SUPPLY BE DEPLETED.
Transport Canada Vehicle Recalls Database · Contains information licensed under the Open Government Licence – Canada · official text, unchanged
Vehicles covered
| Make and model | Model years |
|---|---|
| Blue Bird ALL CANADIAN NON-SCHOOL BUS | 1976, 1977, 1978 |
| Blue Bird ALL CANADIAN SCHOOL BUS | 1976, 1977, 1978 |