A300 first officer had conflicting information from the flight director and raw data.

Attributes
ACN	408626
Time
Date	199807
Day	Fri
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : sju
State Reference	PR
Altitude	msl bound lower : 1400 msl bound upper : 1400
Environment
Flight Conditions	VMC
Light	Dusk
Aircraft 1
Controlling Facilities	tracon : sju
Operator	common carrier : air carrier
Make Model Name	A300
Operating Under FAR Part	Part 121
Navigation In Use	Other
Flight Phase	descent : approach
Route In Use	approach : visual arrival other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
ASRS Report	408620
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	408620
Events
Anomaly	aircraft equipment problem : less severe other anomaly other
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance flight crew : became reoriented flight crew : overcame equipment problem
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	other

Narrative:

Landing at sju, visual approach runway 10, for landing runway 8. Tower called and said it looked like we were landing at isla grande. At the time, I was flying and had a malfunction taking place with the flight director. I selected flight director, and had conflicting information between steer bar and localizer diamond. They indicated turns in the opposite directions. Leveled at about 1400 ft, corrected system, got good localizer information and proceeded to sju and landed on runway 8.

Original NASA ASRS Text

Title: A300 FO HAD CONFLICTING INFO FROM THE FLT DIRECTOR AND RAW DATA.

Narrative: LNDG AT SJU, VISUAL APCH RWY 10, FOR LNDG RWY 8. TWR CALLED AND SAID IT LOOKED LIKE WE WERE LNDG AT ISLA GRANDE. AT THE TIME, I WAS FLYING AND HAD A MALFUNCTION TAKING PLACE WITH THE FLT DIRECTOR. I SELECTED FLT DIRECTOR, AND HAD CONFLICTING INFO BTWN STEER BAR AND LOC DIAMOND. THEY INDICATED TURNS IN THE OPPOSITE DIRECTIONS. LEVELED AT ABOUT 1400 FT, CORRECTED SYS, GOT GOOD LOC INFO AND PROCEEDED TO SJU AND LANDED ON RWY 8.

Data retrieved from NASA's ASRS site as of July 2007 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.