Blue Bird · Canada · Crit
Blue Bird All Canadian School Bus, All Canadian Non-School Bus: Electrical
Affects Blue Bird All Canadian School Bus, All Canadian Non-School Bus · 1976–1978 — about 165 vehicles.
The hazard
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.
What to do
Contact your dealer; the remedy details were not included in the filing.
Critical — crash/injury risk now
High — injury risk; see remedy
Moderate — fix at next service
Low — minor / informational