A d-notam changed the published missed approach altitude for the RNAV GPS runway 17 approach at uao....

Narrative:

Prior to the flight; I checked all relevant NOTAMS through the use of 1800wxbrief.com and through an electronic flight bag program. I noted there was a NOTAM for the RNAV 17 into uao stating 'RNAV (GPS) runway 17; orig-D... Missed approach: climb to 4000 direct dubmy and hold; continue climb in hold to 4000.' this NOTAM was only available in my electronic flight bag software; not on 1800wxbrief.com.with a safety pilot in the copilot seat; I filed an IFR flight plan to execute practice approaches. After flying the approach; I executed the missed approach and advised approach I was 'climbing 4000; missed approach.' after reaching 4000; ATC advised me that the missed approach procedure was 'climb to 3500 to dubmy.' I further queried ATC about the fdc NOTAM which changed the missed approach procedure to 'climb 4000 to dubmy.' after researching the NOTAM; ATC notified me that 4000 was in fact the correct altitude.in this case; the NOTAM in question was a d-notam. There is significant confusion surrounding d-notams with both pilots and ATC. I suspect that ATC might not review all d-notams and d-notams are not displayed on 1800wxbrief.com weather briefings. A difference in expectations could have created a potential conflict in this scenario. For improved safety; d-notams should be included in all pilot briefings.

Original NASA ASRS Text

Title: A D-NOTAM changed the published missed approach altitude for the RNAV GPS Runway 17 approach at UAO. The TRACON was not aware of the change. The change was not included on the 1800wxbrief.com website.

Narrative: Prior to the flight; I checked all relevant NOTAMS through the use of 1800wxbrief.com and through an electronic flight bag program. I noted there was a NOTAM for the RNAV 17 into UAO stating 'RNAV (GPS) RWY 17; ORIG-D... MISSED APPROACH: CLIMB TO 4000 DIRECT DUBMY AND HOLD; CONTINUE CLIMB IN HOLD TO 4000.' This NOTAM was only available in my electronic flight bag software; not on 1800wxbrief.com.With a safety pilot in the copilot seat; I filed an IFR flight plan to execute practice approaches. After flying the approach; I executed the missed approach and advised Approach I was 'climbing 4000; missed approach.' After reaching 4000; ATC advised me that the missed approach procedure was 'climb to 3500 to DUBMY.' I further queried ATC about the FDC NOTAM which changed the missed approach procedure to 'climb 4000 to DUBMY.' After researching the NOTAM; ATC notified me that 4000 was in fact the correct altitude.In this case; the NOTAM in question was a D-NOTAM. There is significant confusion surrounding D-NOTAMS with both pilots and ATC. I suspect that ATC might not review all D-NOTAMs and D-NOTAMS are not displayed on 1800wxbrief.com weather briefings. A difference in expectations could have created a potential conflict in this scenario. For improved safety; D-NOTAMS should be included in all pilot briefings.

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.

Attributes
ACN	1332731
Time
Date	201602
Local Time Of Day	1801-2400
Place
Locale Reference	UAO.Airport
State Reference	OR
Environment
Flight Conditions	VMC
Aircraft 1
Make Model Name	Small Aircraft High Wing 1 Eng Fixed Gear
Operating Under FAR Part	Part 91
Flight Phase	Climb
Route In Use	Other RNAV Runway 17
Flight Plan	IFR
Person 1
Function	Pilot Flying
Qualification	Flight Crew Instrument Flight Crew Private
Experience	Flight Crew Last 90 Days 3 Flight Crew Total 282 Flight Crew Type 17
Events
Anomaly	ATC Issue All Types Deviation - Procedural Clearance Deviation - Procedural Published Material / Policy

A d-notam changed the published missed approach altitude for the RNAV GPS runway 17 approach at uao. The TRACON was not aware of the change. The change was not included on the 1800wxbrief.com website.