Diesel Leak After a Low-Speed Collision
At 7:50 a.m., you are driving a 24-passenger shuttle bus through a Baltimore intersection when a sedan runs the light and strikes your right front corner. The impact is low speed; the shuttle stops, and no one reports an injury at first. The sedan driver later says his neck hurts. Your right headlight is smashed, the front bumper is bent, and you smell diesel. Looking under the bus, you see a steady drip from the fuel tank area. A passenger has a 5-gallon propane cylinder for a camp stove in the luggage area and another has a gasoline can in a backpack. Traffic is moving around you, and several passengers are standing up to look. You are blocking the right lane. The fire station is two blocks away; police and EMS have been called.
1. What immediate actions do you take for the passengers, the fuel leak, and traffic?
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Stop, set the parking brake, shut off the engine, and turn on hazard lights. Do not restart the engine. Account for the passengers and move them off the bus and away from the fuel leak, ideally upwind and at least 100 feet away, while keeping them together. Tell them not to smoke or use lighters. Call 911 if not already done and report the diesel leak, the collision, and the number of passengers. Do not move an injured person unless there is immediate danger such as fire. Warn approaching traffic if it is safe to do so, but do not stand in the lane. Use a fire extinguisher only for a small fire and only if you are trained and have a clear escape route. The priority order is people away from the leak, ignition sources controlled, and emergency responders notified.
2. How do you handle the propane cylinder and the gasoline can?
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Treat both as hazardous materials. Do not handle, move, or stow them unless you are trained and it is safe; tell the fire department exactly where they are and how large they are. Keep all passengers and ignition sources away from them, and do not put them back on the bus. Propane and gasoline are far more flammable than diesel, so if either is leaking, move the evacuation point farther away and upwind. Do not use a cell phone or switch near a suspected leak if there is a strong vapor smell; move away first. The reasoning is that a low-speed collision with a fuel leak can become a fire or explosion if a vapor source is nearby, and untrained handling can make it worse.
3. What post-crash reporting, testing, and documentation apply?
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Remain on scene, exchange information, and notify dispatch and the police. Because the sedan driver reports neck pain, he may require medical treatment away from the scene; combined with the shuttle’s damage and fuel leak, the crash may trigger FMCSA post-accident testing. If testing is required, alcohol testing must occur within 8 hours and drug testing within 32 hours, and you must not consume alcohol for 8 hours after the crash or until testing is complete. Do not leave until released by the police. Document the scene, damage, injuries reported, witnesses, the hazmat items, and the time you notified dispatch and 911. Follow the carrier’s crash packet and Maryland reporting requirements. The judgement is to treat the crash as potentially reportable and testable even though the impact seemed minor at first.