OFFICIAL NHTSA RECALL
92V078000
Service Brakes, Air:supply:hoses, Lines/piping, And Fittings
Reported May 19, 1992 · THOMAS BUILT BUSES, INC.
Summary
A BRAKE AIR LINE PLUMBING ERROR CAUSES THE SPRING BRAKES TO BE APPLIED WITHOUT BRAKE APPLICATION WHEN THE AIR PRESSURE IN THE PRIMARY TANK DROPS TO A LEVEL WHICH AUTOMATICALLY ACTIVATES THE SPRING BRAKE SYSTEM.
Consequence
ACTIVATION OF THE SPRING BRAKE SYSTEM WITHOUT OPERATORBRAKE APPLICATION WILL CAUSE THE SPRING BRAKE TO BE APPLIED, LOCKING THE BRAKESWITHOUT ANY WARNING TO THE OPERATOR.
Remedy
REPLACE AND REROUTE AIR BRAKE HOSE TO COMPLY WITH FMVSS 121.
Notes
SYSTEM: AIR BRAKES, FMVSS 121.VEHICLE DESCRIPTION:BUSES AND SCHOOL BUSES.
This campaign page uses the representative official campaign record. Applicability-specific source variants appear on the linked vehicle pages. Recall counts refer to campaigns, not affected vehicles.
Vehicle entries in this campaign
This is model-level recall history. It does not confirm whether a particular VIN is affected or has received the repair. Check with NHTSA ↗