A320 crew experienced a green hydraulic system failure during approach when the landing gear was ext...

Narrative:

We were on a visual approach following an uneventful flight. At approximately 2;000 ft; the captain; who was flying the leg; asked for the landing gear extension. I lowered the landing gear and almost immediately; we starting receiving numerous ECAM messages. The captain continued flying while I began running the ECAM sequence. We quickly deduced that we had lost all quantity in the green hydraulic system. After a brief analysis and discussion; we informed tower that we would be going around. After beginning the go around sequence; we were handed off to approach control. The captain instructed me to declare an emergency and inform ATC that we would like vectors to sort out the issue and accomplish appropriate checklists. We also requested an eventual return to [the long runway]. After completing all procedures; communicating with company and cabin crew; we agreed that we were ready to return for landing and were vectored for a visual approach. We informed tower that there was a good possibility that we would have to stop on the runway due to no steering capabilities. The captain flew the approach and landing and we touched down without incident. The captain was able to steer the aircraft clear of the runway on a high speed taxiway. After stopping the aircraft; we shut down the engines allowing inspection by the emergency/fire personnel. They informed us everything appeared normal; and we waited for the arrival of our tow-in vehicle. We were subsequently towed to the gate without incident.

Original NASA ASRS Text

Title: A320 crew experienced a Green Hydraulic System failure during approach when the landing gear was extended. A go around initiated; an emergency declared; and ECAM actions complied with before returning to land on the longest runway.

Narrative: We were on a visual approach following an uneventful flight. At approximately 2;000 FT; the Captain; who was flying the leg; asked for the landing gear extension. I lowered the landing gear and almost immediately; we starting receiving numerous ECAM messages. The Captain continued flying while I began running the ECAM sequence. We quickly deduced that we had lost all quantity in the Green Hydraulic System. After a brief analysis and discussion; we informed Tower that we would be going around. After beginning the go around sequence; we were handed off to Approach Control. The Captain instructed me to declare an emergency and inform ATC that we would like vectors to sort out the issue and accomplish appropriate checklists. We also requested an eventual return to [the long runway]. After completing all procedures; communicating with company and cabin crew; we agreed that we were ready to return for landing and were vectored for a visual approach. We informed Tower that there was a good possibility that we would have to stop on the runway due to no steering capabilities. The Captain flew the approach and landing and we touched down without incident. The Captain was able to steer the aircraft clear of the runway on a high speed taxiway. After stopping the aircraft; we shut down the engines allowing inspection by the emergency/fire personnel. They informed us everything appeared normal; and we waited for the arrival of our tow-in vehicle. We were subsequently towed to the gate without incident.

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.

Attributes
ACN	1040272
Time
Date	201209
Local Time Of Day	1801-2400
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Aircraft 1
Make Model Name	A320
Operating Under FAR Part	Part 121
Flight Phase	Initial Approach
Route In Use	Visual Approach
Component
Aircraft Component	Hydraulic System Lines Connectors Fittings
Person 1
Function	First Officer Pilot Not Flying
Experience	Flight Crew Last 90 Days 225 Flight Crew Total 12000 Flight Crew Type 3400
Events
Anomaly	Aircraft Equipment Problem Critical

A320 crew experienced a green hydraulic system failure during approach when the landing gear was extended. A go around initiated; an emergency declared; and ECAM actions complied with before returning to land on the longest runway.