Procedure Turn

I'm pretty sure this question has been asked, but I can't seem to find
it. My question deals with a typical approach with a procedure turn
before the FAF, could be an NDB, VOR, GPS, etc. I know what the
purposes are. 1) Provide course reversal and 2) allow altitude loss
from the arrival altitude to the procedure turn altitude. My question
is, am I expected to make the turn it if I'm already established on
the inbound course and am already at the correct altitude.

I don't think the AIM is very clear.


From the following paragraph, I read that it is ...

5-4-8. Procedure Turn
a. A procedure turn is the maneuver prescribed when it is necessary to
perform a course reversal to establish the aircraft inbound on an
intermediate or final approach course. The procedure turn or hold in
lieu of procedure turn is a required maneuver.

However, from this entry a few lines down, I wonder ...
b. Limitations on Procedure Turns.
....
2. When a teardrop procedure turn is depicted and a course reversal is
required, this type turn must be executed.


"When a course reversal is required" ??? And even in the first
paragraph it says "when it is necessary to perform a course reversal"

I'm thinking I don't have to. I know this situation doesn't happen
that often but when it does, I don't really have the answer, I suppose
I would have to ask the controller.

I appreciate your input.