An A320 pilot reports following a faulty automatic gate guidance system and nearly hitting a jetbrid...

Attributes
ACN	713454
Time
Date	200610
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 0
Environment
Weather Elements	other
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	A320
Operating Under FAR Part	Part 121
Flight Phase	ground : taxi
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Experience	flight time last 90 days : 210 flight time total : 8000 flight time type : 2000
ASRS Report	713454
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	ground encounters other
Independent Detector	other other : 3
Resolutory Action	none taken : detected after the fact
Supplementary
Problem Areas	Weather Airport
Primary Problem	Airport

Narrative:

First experience with a dual end jetbridge. I had seen the video and reread the briefing sheet prior to arrival. As we made a right turn into the gate the system displayed A320 and then arrows pointing from left to right; indicating that we should keep the right turn coming. This made sense since I started from slightly left of the bright yellow taxi line. I continued forward and right; still following turn command arrows; crossing to the right side of the centerline and stopped upon signal from a guide person. We were pushed back and then taxied to the gate under direction of the guide person. The system continued to show flashing 'turn right' arrows until we were pushed back; and then just showed the time of day. It was nighttime with light precipitation. The guide person said the left wing stopped within about 1.5 ft of the rear jetbridge stanchion.

Original NASA ASRS Text

Title: AN A320 PLT RPTS FOLLOWING A FAULTY AUTOMATIC GATE GUIDANCE SYS AND NEARLY HITTING A JETBRIDGE.

Narrative: FIRST EXPERIENCE WITH A DUAL END JETBRIDGE. I HAD SEEN THE VIDEO AND REREAD THE BRIEFING SHEET PRIOR TO ARR. AS WE MADE A R TURN INTO THE GATE THE SYS DISPLAYED A320 AND THEN ARROWS POINTING FROM L TO R; INDICATING THAT WE SHOULD KEEP THE R TURN COMING. THIS MADE SENSE SINCE I STARTED FROM SLIGHTLY L OF THE BRIGHT YELLOW TAXI LINE. I CONTINUED FORWARD AND R; STILL FOLLOWING TURN COMMAND ARROWS; XING TO THE R SIDE OF THE CTRLINE AND STOPPED UPON SIGNAL FROM A GUIDE PERSON. WE WERE PUSHED BACK AND THEN TAXIED TO THE GATE UNDER DIRECTION OF THE GUIDE PERSON. THE SYS CONTINUED TO SHOW FLASHING 'TURN R' ARROWS UNTIL WE WERE PUSHED BACK; AND THEN JUST SHOWED THE TIME OF DAY. IT WAS NIGHTTIME WITH LIGHT PRECIP. THE GUIDE PERSON SAID THE L WING STOPPED WITHIN ABOUT 1.5 FT OF THE REAR JETBRIDGE STANCHION.

Data retrieved from NASA's ASRS site as of January 2009 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.

An A320 pilot reports following a faulty automatic gate guidance system and nearly hitting a jetbridge.