Effects of Concentrated Hydrochloric Acid Spills on Aircraft Aluminum Skin

Details

• Creators:
  Speitel, Louise
• Corporate Creators:
  United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center. Fire Safety Section
• Corporate Contributors:
  United States. Department of Transportation. Federal Aviation Administration. Office of Aviation Research
• Subject/TRT Terms:
  • Aircraft materials
  • Aircraft structural components
  • Aluminum
  • Chemical spills
  • Failure analysis
  • Hydrochloric acid
• Publication/ Report Number:
  DOT/FAA/AR-TN97/108
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Edition:
  Technical Notes
• Corporate Publisher:
  United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center
• Abstract:
  This document describes the tests conducted to evaluate the effects of a spill of a strong corrosive acid such as hydrochloric acid (HCl) on aircraft interior skin and to determine the time required for a spill of Department of Transportation (DOT) allowable volumes and concentrations to cause catastrophic failure. Test data indicate that the epoxy coated interior aluminum skin is resistant to acid attack. The acid reacted vigorously with scratched skin surfaces, creating a wide hole in the skin along the scratch line. Test data also indicate that a spill of concentrated HCI can eat completely through the rivets and ribs and may result in a significant loss of structural rib strength.
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/90174/dot_90174_DS1.pdf
• File Type:
  [PDF - 756.46 KB]
• Collection(s):
  FAA William J. Hughes Technical Center for Advanced Aerospace
• Main Document Checksum:
  urn:sha-512:df11bdf09ea865bc95a0f91590cd51f2989212e40d403d7e67836fbabaca77983433743fe1dd2a187bb0874e3b7eb72f708c4a761a45297ffd3ba89a354f165b