Background
Background Background
The Swiss Federal Office for Civil Aviation (FOCA) has advised that when the
N ESNTL switch is set to AUTO the NON ESSENTIAL BUS may not automatically disconnect from the power distribution system when the BAT/GEN 1 bus tie circuit breaker (CB210) opens. Additionally FOCA has advised that reports have been received of incorrect wiring of the KN-40 Navigation Converter.
This amendment introduces a revision to the Requirement Document which corrects a wiring error in the original issue of the document.
The original issue of this Directive, mandated a wiring change, which eliminated the condition whereby the NON ESSENTIAL BUS remained connected, and an inspection of the KN-40 wiring.
The original issue of this Airworthiness Directive became effective on 7 November 1996.
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