I would suggest where Flight Safety is an issue that a 'duty of care' would necessitate the use of Instruction rather than Advice.
I would much rather state my case in the Ops Room rather than at a Coroner's Inquest.
A melodramatic argument. The AGCS operator has no qualification - and perhaps no experience - to pass an instruction. However, clear and precise information can give the pilot the ability to make an appropriate decision. The required result can be obtained by operating legitimately.
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