Unnecessary verbiage or sensible redundancy?

Chip Jones wrote:


Also BTW, we had a trainee controller cause an operational error using this
non-prescibed phraseology. His MIA was 4900. He had overflight traffic on
radar at 6000 and a non-radar departure that he was issuing a full IFR
clearance to. The departure was filed for 9000. As part of the detailed
departure clearance with "CRAFT" and all that, he instructed the pilot to
"Climb and maintain five thousand, FIVE" in an attempt to reinforce the 5000
assigned altitude portion of the full clearance. The pilot, doing the full
clearance readback, read back "Climb and maintain five thousand five, blah
blah blah..." The apprentice controller missed the semantical difference
between his phraseology and the pilot's readback and the departure aircraft
got with the overflight.


You ought to come here. We have pretty much made the MVA map
irrelavant. We have had the same guy, the SAME GUY, get three airplanes
below the MVA three times in the last 6 months. The investstigation
reveals that the aircraft was not within 2000/3 of the ground or any
obstacles and it goes away.