Originally Posted by Northerner
"Any thoughts on the order with which multiple instructions are given?"
Not really, except that any that are for legal or separation purposes would come first, any that then give best service to the aircraft involved, or my plan (
) come later.
NavCan MANOPS are quite specific about order:
412.1 Issue clearance items, as appropriate, in the following order:
A. Prefix
B. Aircraft Identification
C. Clearance limit.
D. SID
E. Route.
F. Altitude.
G. Mach-number.
H. Departure, en route, approach, or holding instructions.
I. Special instructions or information.
J. Traffic information.
412.1 Note: It is important that an IFR clearance contain positive and concise data phrased in a consistent manner. This is especially true of a clearance that will be relayed through a communication agency, since the clearance must be relayed verbatim.
So, yes, route before altitude.
the "as appropriate" in the manop does give us some room to maneuvre within the rule. Any unnecessary items are omitted, and sometimes they are rearranged slightly.
For example, "abc 123, maintain FL 330 Through fl 320, cleared direct yzz flight planned route" can't really give him the "through fl 320" if he hasn't been cleared past 310 yet.
Item I, special information, is often bumped to the front as well, or sent in a separate transmission.