Probing Boeing's crossed connections (aircraft instrumentation)

The causes and consequences of the misconnected circuits and hoses found in the fire protection systems of 94 in-service Boeing aircraft are examined. The problems were discovered during the massive worldwide inspections of fire protection systems in Boeing aircraft following the crash in England of a British Midland Airways Boeing 737 en route to Belfast in January 1989. These problems, of which there were a number of reports during 1988, did not cause the crash, which was attributed to human error.<
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