Engineering Ethics and Professional Responsibility

Why Ethics in Engineering?

Engineers design systems that directly affect public safety. A design flaw can kill people. An ethical engineer:

• Prioritizes public safety above all else
• Acts honestly and with integrity
• Maintains professional competence

NSPE Code of Ethics — Fundamental Canons

1. Hold paramount the safety, health, and welfare of the public
2. Perform services only in areas of competence
3. Issue public statements only in an objective and truthful manner
4. Act as faithful agents for clients and employers
5. Avoid deceptive acts
6. Conduct themselves honorably to enhance the profession

Ethical Decision Framework

When facing an ethical dilemma:

1. Identify the ethical issue
2. Identify the relevant facts
3. Identify stakeholders
4. Identify possible actions
5. Evaluate consequences
6. Select the most ethical course

Common Ethical Issues

Conflicts of Interest

Engineer has financial interest that could bias professional judgment. Must disclose.

Whistleblowing

Reporting safety violations to authorities. Protected by law but professionally risky.

Informed Consent

Clients and the public deserve truthful information to make decisions.

Sustainability

Engineers have a responsibility to design for long-term environmental health:

• Minimize waste and emissions
• Use life-cycle thinking
• LEED design principles

Historic Case Studies

Challenger Space Shuttle (1986)

• Engineers warned against launch in cold weather
• Management overruled for schedule reasons
• O-rings failed → 7 deaths
• Lesson: Speak up. Public safety > schedule.

Hyatt Regency Walkway Collapse (1981)

• Design change during construction not properly reviewed
• 114 deaths
• Lesson: Engineers must sign off on all design changes.

Tacoma Narrows Bridge (1940)

• Insufficient attention to aerodynamic flutter
• Bridge oscillated and collapsed
• Lesson: Understand all failure modes, not just the obvious ones.

Summary

The engineer's first obligation is to the public. Know the NSPE canons. When safety is at risk, the ethical choice is always to communicate clearly and prioritize lives over economics or schedule.