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Analysis

Summary

The complexity of the traffic sequence for the ADC was increased by the amount of traffic in the area, and by the fact that the pilot of the turbojet aircraft conducted a go-around. However, had the ADC instructed the Cheetah pilot to report prior to turning base or final for runway 30, he would have had some options to better manage the traffic sequence. The ADC could have also utilised one of the other controllers to assist in the sequencing of the traffic, by monitoring the flight of the Cheetah.

Once the ADC recognised that the use of the intersecting runways was not possible, the use of the appropriate and complete RTF for the situation would have assisted in minimising the possibility for conflict. Under the circumstances, the use of the RTF for emergency conditions may have been appropriate. In his haste to ensure that the Dash 8 received the instruction to hold, the ADC compounded the situation by not allowing the crew time to acknowledge the take-off clearance prior to issuing the hold instruction. Had the ADC transmitted after the crew had completed their acknowledgment, it is probable that they would have clearly received, and been able to safely respond to, the hold instruction.

The use of land-and-hold-short procedures for the particular runways in use was not an option for the ADC.

 
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