"Bob Gardner" wrote in message news:clOwb.106635$Dw6.513567@attbi_s02...
From 3-7-1 in the Air Traffic Control Handbook:

"b. Do not use the word "cleared" in conjunction with authorization for
aircraft to taxi or equipment/vehicle/personnel operations. Use the prefix
"taxi," "proceed," or "hold," as appropriate, for aircraft instructions and
"proceed" or "hold" for equipment/vehicles/personnel."

That is fine Bob, but immaterial.
The Tenerife crash invovled the KLM flight being in position in hold. The
first officer called in saying they were "ready for their ATC clearance."
What he got back was an IFR clearance"
"Cleared to Papa Beacon ...

This exact same thing would happen today at many US airports (let's avoid
going back to the clearance on request discussion).

3-7-1 doesn't seem to have done anything to alleviate what happened at Tenerife.