Senior Scientist @ US DOE Oak Ridge National Laboratory/Joint Faculty Professor UTK | Licensed Professional Engineer (P.E.)
The Francis Scott Key bridge collapse is such a sad incident . Thank you Bill Atkinson P.E., Fellow NSPE and the National Society of Professional Engineers (the guiding society for US Licensed engineers ) for issuing a statement on this disaster. Let's not rush to judgment here until the NTSB completes there investigation. There are many maintenance issues that diesel generators on container issues have - some are stated here : Fuel Quality: Poor fuel quality or contamination can lead to engine problems such as clogged fuel filters, injector fouling, and reduced engine performance. Regular fuel quality checks and filtration system maintenance are essential to prevent such issues. Wear and Tear: Continuous operation of diesel generators in harsh maritime environments can cause wear and tear on various components such as pistons, cylinders, valves, and bearings. Regular inspections, lubrication, and replacement of worn parts are necessary to maintain optimal performance and prevent breakdowns. Cooling System Problems: Issues with the cooling system, including coolant leaks, clogged heat exchangers, and malfunctioning pumps, can lead to overheating of the engine and potential damage. Regular inspection, cleaning, and maintenance of the cooling system components are crucial for preventing such problems. Exhaust System Maintenance: Diesel generators produce exhaust gases containing pollutants such as sulfur dioxide, nitrogen oxides, and particulate matter. Regular inspection and maintenance of exhaust gas treatment systems (such as scrubbers or selective catalytic reduction systems) are necessary to ensure compliance with emissions regulations and prevent corrosion or blockages in the exhaust system. Electrical System Faults: Electrical components such as wiring, connectors, switches, and control panels may experience faults or failures due to factors like corrosion, vibration, or moisture ingress. Routine inspection, testing, and maintenance of the electrical system are essential to ensure reliable operation of the generators and associated equipment. Vibration and Alignment: Diesel generators produce significant vibrations during operation, which can lead to misalignment of engine components, mounting bolts loosening, and structural damage. Regular vibration monitoring, alignment checks, and tightening of fasteners are necessary to mitigate these issues and prevent mechanical failures. Corrosion and Rust: Exposure to saltwater spray and moisture can cause corrosion and rust on engine components, especially in marine environments. Regular cleaning, surface treatment, and corrosion protection measures are essential to prolong the lifespan of diesel generators and prevent structural deterioration. Proactive maintenance practices, including regular inspections, preventive maintenance schedules, and prompt resolution of identified issues, are critical for ensuring the reliable and efficient operation of diesel generators on container ships.
NSPE is saddened by the Francis Scott Key Bridge collapse in Baltimore, Maryland, and the tragic loss of life on March 26. Our deepest condolences go out to the victims, their families, and the citizens of Baltimore. As an organization of licensed professional engineers (PEs), we value the public’s health, safety, and welfare above all else. Read the full statement: https://bit.ly/43CFWsU
Veteran electric utility engineer
8moI share you sorrow, and the sentiments of the NSPE, about this disruptive accident and the loss of life. The ship crew and first responders are to be commended for prompt actions to stop bridge traffic which averted even more deaths. While the accident investigation has barely started, it appears that there was nothing wrong with the bridge. It was properly designed, built and maintained. It also appears that the ship was seaworthy. The cause appears to be in its operation. Were the 22 crew members sufficient for such a large ship? Were they adequately trained in their roles, alert and rested? Had the ship, particularly its propulsion and control systems, been adequately maintained and inspected? Was there contamination in the fuel? Should the tugboats have continued to guide the ship until it was past the bridge? Diesel engines have powered ships for a century and it's a pretty mature technology. In short, this isn't an engineering problem, it's a mariner problem. And the owners, operators and charterers need to be held fully accountable.