Narrative:

Loss of GPS reception to a dual set of garmin 430/530 receivers while landing at [a hospital pad]. When on the pad; the reception page of the GPS units was referenced and zero satellites were acquired and the strength of reception indicators were zero. [I have] been having this problem sporadically in recent months after three years of never having this problem at this location.

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Original NASA ASRS Text

Title: EMS helicopter pilot reports a loss of GPS signal during landing at a hospital pad. The loss of signal has been occurring sporadically over the last three months with no previous problems detected.

Narrative: Loss of GPS reception to a dual set of GARMIN 430/530 receivers while landing at [a hospital pad]. When on the pad; the reception page of the GPS units was referenced and zero satellites were acquired and the strength of reception indicators were zero. [I have] been having this problem sporadically in recent months after three years of never having this problem at this location.

Data retrieved from NASA's ASRS site as of July 2013 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.