Narrative:

I filed [an] IFR flight plan from ZZZ to dmw for a training flight with student and was PIC in VFR conditions. From east of binns intersection; I was cleared for the RNAV (GPS) 16 approach direct binns. I flew [the] approach starting the procedure turn and controller informed me procedure turn not authorized. I was in VMC conditions; cancelled IFR flight plan; and flew direct to dmw after partially completing the procedure turn.what confused me was on my approach plate; there is a note 1 stating: 'procedure not authorized for arrival at binns on V265 northbound.' I was not on V265 northbound but had been cleared direct binns from the east. I falsely concluded that the procedure turn was authorized given location and the published approach.I think what would have helped are 4 things. 1) the turn from binns to nispl on the approach plate (eliminating the procedure turn) is about 120 degree turn. Being greater than 90 degrees a procedure turn seems appropriate and again the note indicates no procedure turn if on V265 northbound which I wasn't on. If the approach plate; like others I've seen; had 'nopt' showing note and sectors of the approach course; I would have readily understood 'nopt' from my heading. 2) I should have asked for procedure turn given the potential confusion on the approach plate and will always do so going forward. 3) like many other situations; controllers working sectors get accustomed to potential confusion in their sector and can help; when able; with pointing out these circumstances ahead helping pilots staying safe and in authorized areas. 4) I should have put 'practice approach' on notes section of flight plan which might have indicated to controller flight instruction and helped them help me in the approach.

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Original NASA ASRS Text

Title: Flight instructor reported a confusing note on the RNAV (GPS) RWY 16 approach at DMW that informed the decision to make a procedure turn; however ATC subsequently advised the procedure turn was not authorized.

Narrative: I filed [an] IFR flight plan from ZZZ to DMW for a training flight with student and was PIC in VFR conditions. From east of BINNS Intersection; I was cleared for the RNAV (GPS) 16 approach direct BINNS. I flew [the] approach starting the procedure turn and Controller informed me procedure turn not authorized. I was in VMC conditions; cancelled IFR flight plan; and flew direct to DMW after partially completing the procedure turn.What confused me was on my approach plate; there is a note 1 stating: 'procedure not authorized for arrival at BINNS on V265 northbound.' I was not on V265 northbound but had been cleared direct BINNS from the east. I falsely concluded that the procedure turn was authorized given location and the published approach.I think what would have helped are 4 things. 1) The turn from BINNS to NISPL on the approach plate (eliminating the procedure turn) is about 120 degree turn. Being greater than 90 degrees a procedure turn seems appropriate and again the note indicates no procedure turn if on V265 Northbound which I wasn't on. If the approach plate; like others I've seen; had 'NoPT' showing note and sectors of the approach course; I would have readily understood 'NoPT' from my heading. 2) I should have asked for procedure turn given the potential confusion on the approach plate and will always do so going forward. 3) Like many other situations; controllers working sectors get accustomed to potential confusion in their sector and can help; when able; with pointing out these circumstances ahead helping pilots staying safe and in authorized areas. 4) I should have put 'practice approach' on notes section of flight plan which might have indicated to controller flight instruction and helped them help me in the approach.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.