Narrative:

Cleared for the RNAV approach to in lieu of ILS which was out of service (OTS). At map and MDA there was no runway environment and aircraft icing up with all deicing operative. Executed published miss and in climb out continued through 5500 up to 7000 to be above clouds and icing. Advised approach of altitude and reason for being there. Requested clearance to alternate ZZZ1.this was poorly handled by myself:should have prepared for the RNAV vs ILS which I failed to see it had been notamed OTS.should have had deice on earlier and perhaps used spoilers to have more thrust for heat.should have been more familiar with missed approach procedures using the FMS.should have been more skeptical of ASOS which was indicating above minimums but with variable ceiling.

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Original NASA ASRS Text

Title: A Cessna Citation Captain reported that he was unable to land due to ILS being out of service. The reporter was unprepared for an RNAV approach.

Narrative: Cleared for the RNAV approach to in lieu of ILS which was Out of Service (OTS). At MAP and MDA there was no runway environment and aircraft icing up with all deicing operative. Executed published miss and in climb out continued through 5500 up to 7000 to be above clouds and icing. Advised approach of altitude and reason for being there. Requested clearance to alternate ZZZ1.This was poorly handled by myself:Should have prepared for the RNAV vs ILS which I failed to see it had been notamed OTS.Should have had deice on earlier and perhaps used spoilers to have more thrust for heat.Should have been more familiar with missed approach procedures using the FMS.Should have been more skeptical of ASOS which was indicating above minimums but with variable ceiling.

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.