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NAV _____IR 1 FAULT

Air Data Inertial Reference Unit (ADIRU)

— RESET PROCEDURE—

  • Reset breakers FWC 1 and FWC 2 on the LH and RH reset panels.
  • Cycle breaker ADIRU1 115VAC on panel 721VU pos C04.
  • Cycle breaker ADIRU1 28VDC on panel 742VU pos B80.
  • Cycle breaker ADIRU1 BAT on panel 742VU pos K70.

MEL STATUS: MEL 34-10-01-A

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All instructions and limitations given in those documents that relate to the resetting of systems both on the ground and in the air must be respected. No reset should be attempted without a thorough appreciation of the technical ramifications. No more than one computer should be reset at any one time. No reset should be attempted in flight unless specifically permitted by the QRH. Maintenance messages remaining after a reset require engineering investigation.

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