Nutplates fail for a variety of reasons

  • Poor surface prep
  • Wrong grip length fastener (too long) when engaged pushing nutplate off structure
  • Fastener locked up in nut element (i.e. not turning) due to excessive heat from fastener during installation
  • Improper fastener torque sequencing for panel installation

Following aircraft specific T.O. – takes from 24 to 72 hours to effect a repair

Removal-and-Replacement-of-Failed-Bonded-Nutplates-Presentation