Storage and repair of older, radium-containing aircraft instruments
Based on recent US EPA guidance, an airport determined that one of its FBO tenants, an avionics repair firm, had a large amount of potentially radioactive aircraft instruments stored in their warehouse for many years. The luminescent paint used in these aircraft instruments (new and used) contained radium, which
continued to emit measurable radiation and pose potential health hazards. These instruments were mixed together with thousands of other aircraft parts in the warehouse. The state regulatory agency inspected the site, and a primary concern cited was the potential for a catastrophic fire to result in ingestion/inhalation of radium smoke/soot and generation of contaminated fire-fighting water.
The tenant could not afford to sort and dispose of the radium-contaminated instruments and filed for bankruptcy. The state regulatory agency notified the airport of impending enforcement action and the airport decided it was necessary to dispose of the instruments as low level radioactive waste. An AXA XL technical
consultant worked with the airport to determine the level of risk and appropriate disposal requirements. A third-party consultant was hired to assist with proper hazard identification and disposal of the radium instruments. All costs and expenses associated with the consulting services and instrument disposal fell within the airport’s self-insured policy retention of $500,000.