Narrative:

After a CAT ii approach and landing in lsgg; we were taxiing very slowly to the gate in heavy fog. I am familiar with the taxi route and the parking system in lsgg. Approaching the gate I noted that the parking system was on and indicated B767 and so I continued slowly inbound to the gate. For some reason; the meters countdown to zero stopping portion of the parking system did not activate. When I realized that the parking system was malfunctioning I stopped the airplane and shutdown the engines. By then we had already gone a couple of feet past the normal stopping point; however they were able to position the jetway without moving the airplane. We complied with all written low visibility and parking procedures in lsgg. I need to be more alert that sometimes these accurate parking systems fail and as soon as there is any doubt to stop the airplane and ask for assistance. It seems that the only people monitoring parking are you and your copilots.

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Original NASA ASRS Text

Title: A B767 Captain reported the LSGG automatic gate arrival system directional indicators functioned properly but the stop bar was inoperative leading to a slight stopping point overshoot.

Narrative: After a CAT II approach and landing in LSGG; we were taxiing very slowly to the gate in heavy fog. I am familiar with the taxi route and the parking system in LSGG. Approaching the gate I noted that the parking system was on and indicated B767 and so I continued slowly inbound to the gate. For some reason; the meters countdown to zero stopping portion of the parking system did not activate. When I realized that the parking system was malfunctioning I stopped the airplane and shutdown the engines. By then we had already gone a couple of feet past the normal stopping point; however they were able to position the jetway without moving the airplane. We complied with all written low visibility and parking procedures in LSGG. I need to be more alert that sometimes these accurate parking systems fail and as soon as there is any doubt to stop the airplane and ask for assistance. It seems that the only people monitoring parking are you and your copilots.

Data retrieved from NASA's ASRS site as of April 2012 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.