Narrative:

Cleared for the ILS 16R at sea and established on the localizer; prior to bugne; sea approach control advised new cleared for the localizer 16R. [GPS] was set-up 'vectors-to-final' and #2 nav set-up to the localizer. I started flipping thru approaches to bring-up the fixes; the weather was bad; faster traffic behind me; using the #2 nav/DME; I had the field in sight; and continuing to flip thru the approaches to bring-up the fixes. My altitude was then 2;700 feet prior to bugne (3;200 ft) and then approach control advised me to 'cross bugne at 2;700 feet.' then halfway between bugne and finka (1;900 feet); the gilde slope came alive and I continued to landing.after landing and waiting for clearance to cross 16L; I flipped thru the approaches again; pressed agane fix and there was what I was trying to get. I can only explain that I had a brain-lock at the worst possible time.

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Original NASA ASRS Text

Title: Air taxi pilot reported his confusion during an SEA ILS Runway 16R Approach.

Narrative: Cleared for the ILS 16R at SEA and established on the LOC; prior to Bugne; SEA Approach Control advised new cleared for the LOC 16R. [GPS] was set-up 'Vectors-to-Final' and #2 Nav set-up to the LOC. I started flipping thru approaches to bring-up the fixes; the weather was bad; faster traffic behind me; using the #2 Nav/DME; I had the field in sight; and continuing to flip thru the approaches to bring-up the fixes. My altitude was then 2;700 feet prior to Bugne (3;200 ft) and then Approach Control advised me to 'Cross Bugne at 2;700 feet.' Then halfway between Bugne and Finka (1;900 feet); the Gilde Slope came alive and I continued to landing.After landing and waiting for clearance to cross 16L; I flipped thru the approaches again; pressed Agane fix and there was what I was trying to get. I can only explain that I had a brain-lock at the worst possible time.

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.