ASM Failure Analysis Case Histories: Air and Spacecraft
Analysis of Aircraft Damage from a Lightning Strike
On 16 July 1999, a Boeing 737-800 on final approach for landing sustained a major lightning strike. Damage to the fuselage structure primarily was in the form of melting or partial melting of widely-separated rivets and adjacent Alclad 2024-T3 fuselage skin. The damage was confined to a 0.25-in. (6.4-mm) radii around the affected rivets. The repair process involved removal of the locally-affected material and addition of a skin doubler to restore the aircraft structure to the originally designed condition. Damage features are described briefly.
Luther M. Gammon, Michael V. Hyatt, G. Hari Narayanan, Henry J. Oberson, Harcayal B. Singh, Analysis of Aircraft Damage from a Lightning Strike, ASM Failure Analysis Case Histories: Air and Spacecraft, ASM International, 2019, https://doi.org/10.31399/asm.fach.aero.c9001529
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