Narrative:

After rotation and positive climb; I commanded gear up. Captain was pilot monitoring and stated the gear handle would not move. We then received a landing gear strut failure ECAM; and lost use of the flight directors; autopilots and auto thrust. I continued to fly raw data while captain reviewed/ran ECAM actions and QRH for the failure and upcoming overweight landing. After completing; ran remaining checklists and was vectored in for an ILS approach; but had visual approach conditions 10+ miles from field. [We] touched down at 146;500 pounds with a 20 ft/min descent rate. Upon returning to gate; mechanic reviewed aircraft printout of a ground proximity failure.

Related reports:

Google
 

Original NASA ASRS Text

Title: An A320 returned to the departure airport when the landing gear failed to retract due to a landing gear strut failure.

Narrative: After rotation and positive climb; I commanded gear up. Captain was pilot monitoring and stated the gear handle would not move. We then received a landing gear strut failure ECAM; and lost use of the flight directors; autopilots and auto thrust. I continued to fly raw data while Captain reviewed/ran ECAM actions and QRH for the failure and upcoming overweight landing. After completing; ran remaining checklists and was vectored in for an ILS approach; but had visual approach conditions 10+ miles from field. [We] touched down at 146;500 LBS with a 20 ft/min descent rate. Upon returning to gate; mechanic reviewed aircraft printout of a ground proximity failure.

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.