Low Oil Pressure
At what point would you do a percautionary shutdown of a twin turbine engine when the oil pressure dipps into the yellow ark. Its in the upper half of yellow and stable. Oil temps are good and all else is fine. You are flying at night - does that make a difference? Do passengers? No emergency checklist until oil pressure light comes on at the lowest point of yellow ark. The POH sais as soon as "practicable", so I need your experience.
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