Severity
Incident
Leak
Yes
Ignition
No

A fueler drove away without disconnecting the fueling hose from the vehicle. The breakaway did not open and the receptacle fitting sheared off the vehicle. Subsequent testing of the breakaway showed that the breakaway operated at 210 lbs, which was above the design value of 133 lbs. The hydrogen contained in the hose between the dispenser shutoff valve and the vehicle check valve was released.

Incident Date
Feb 24, 2009
Setting
Equipment
  • Vehicle & Fueling Systems
  • Fueling Dispenser
  • Vehicle & Fueling Systems
  • Fuel Cell Vehicle
  • Vehicle & Fueling Systems
  • Fueling Hose
Damage and Injuries
Contributing Factors
Characteristics
When Incident Discovered
Lessons Learned

Consider periodic testing of breakaway device.
Consider determining shear force limit of vehicle receptacle adapter fittings.