Narrative:

Nosewheel steering failed with associated ECAM at gear down on the approach. Executed a go around and accomplished all procedures. Contacted dispatch via satcom and they could not help. Briefed flight attendants and passenger. Declared an emergency with approach. Landed on runway xxl in ZZZ with no other problems. Hydraulic selector valve in nosewheel steering system failed.

Google
 

Original NASA ASRS Text

Title: A330 ECAM INDICATED NOSEWHEEL STEERING FAILURE. FLT CREW DECLARED AN EMER AND LANDED SAFELY.

Narrative: NOSEWHEEL STEERING FAILED WITH ASSOCIATED ECAM AT GEAR DOWN ON THE APCH. EXECUTED A GAR AND ACCOMPLISHED ALL PROCS. CONTACTED DISPATCH VIA SATCOM AND THEY COULD NOT HELP. BRIEFED FLT ATTENDANTS AND PAX. DECLARED AN EMER WITH APCH. LANDED ON RWY XXL IN ZZZ WITH NO OTHER PROBS. HYD SELECTOR VALVE IN NOSEWHEEL STEERING SYS FAILED.

Data retrieved from NASA's ASRS site as of May 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.