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As part of an endorsement training exercise the captain operated the emergency electrical Bus to simulate an electrical fire. When the Bus was selected all electrical power was removed from the aircraft. Later examination found a broken wire in a relay box. It was found that the fault was not detected during previous maintenance test/checks because the test circuit goes to the earth side of the circuit, and the breakage occurred on the power side. The operator is currently corresponding with the aircraft manufacturer to recommended a change to the maintenance manual procedural checks that will identify any similar faults during ground tests.
Download Final Report
[ Download PDF: 11KB]
General details
Date: 04 July 1995 Investigation status: Completed 
 Investigation type: Occurrence Investigation 
Release date: 14 December 1995 Occurrence class: Technical 
Report status: Final Occurrence category: Incident 
Aircraft details
Aircraft manufacturer: Embraer-Empresa Brasileira De Aeronautica 
Aircraft model: EMB-110P2 
Aircraft registration: VH-FNR 
Sector: Turboprop 
Damage to aircraft: Nil 
Departure point:Cairns QLD
Destination:Cairns QLD
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Last update 21 October 2014