Effects of Concentrated Hydrochloric Acid Spills on Aircraft Aluminum Skin

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 HCl can eat completely through the rivets and ribs and may result in a significant loss of structural rib strength.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1998
Accession Number
ADA355072

Entities

People

  • Louise C. Speitel

Organizations

  • Federal Aviation Administration

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Acids
  • Aircrafts
  • Aluminum
  • Cargo Aircraft
  • Coatings
  • Containers
  • Epoxy Coatings
  • Fire Safety
  • Governments
  • Hydrochloric Acid
  • Materials
  • Observation
  • Passenger Aircraft
  • Test Methods
  • Transportation
  • United States
  • United States Government

Readers

  • Electrochemical Engineering/ Fuel Cell Technologies
  • Structural Health Monitoring of Composite Structures.
  • Surface Coatings Technology.