Editing Depleted uranium (section)

===Trim weights in aircraft===
Aircraft that contain depleted uranium trim weights for stabilizing wings and control surfaces (such as the [[Boeing 747|Boeing 747–100]]) may contain between {{convert|652|and|1059|lb}} of DU.<ref>{{Cite web |author=Gallacher |first=Thomas |date=8 September 1994 |title=Boeing Use of Depleted Uranium Counterweights in Aircraft |url=https://www.nrc.gov/docs/ML0321/ML032180089.pdf |access-date=27 June 2023 |work=nrc.gov}}</ref> This application is controversial because the DU might enter the environment if the aircraft crashes. The metal can also [[oxidation|oxidize]] to a fine powder in a fire. Its use has been phased out in many newer aircraft. [[Boeing]] and [[McDonnell-Douglas]] discontinued using DU counterweights in the 1980s. Depleted uranium was released during the crash of [[El Al Flight 1862]] on 4 October 1992, in which {{convert|152|kg}} was lost, but a [[case study]] concluded that there was no evidence to link depleted uranium from the plane to any health problems.<ref name="Uijt">{{cite journal |author=Uijt de Haag |first1=P. A. |last2=Smetsers |first2=R. C. |last3=Witlox |first3=H. W. |last4=Krus |first4=H. W. |last5=Eisenga |first5=A. H. |year=2000 |title=Evaluating the risk from depleted uranium after the Boeing 747-258F crash in Amsterdam, 1992 |journal=Journal of Hazardous Materials |volume=76 |issue=1 |pages=39–58 |doi=10.1016/S0304-3894(00)00183-7 |pmid=10863013|bibcode=2000JHzM...76...39U }}</ref> DU counterweights manufactured with [[cadmium plating]] are considered non-hazardous as long as the plating is intact.<ref>{{cite web |url=https://www.faa.gov/documentLibrary/media/Advisory_Circular/AC20-123.pdf |archive-url=https://ghostarchive.org/archive/20221009/https://www.faa.gov/documentLibrary/media/Advisory_Circular/AC20-123.pdf |archive-date=2022-10-09 |url-status=live|title=AC20-123 Avoiding or Minimizing Encounters with Aircraft Equipped with Depleted Uranium Balance Weights during Accident Investigations}}</ref>