Narrative:

On graveyard shift for aug/xa/01, we were assigned aircraft XXX for a rudder trim MEL and CAT MEL. We installed the actuator per task de-dd-back course-air data computer maintenance manual and did the following chkout: 1) electric trim check, 2) hydraulic movement of rudder for leak check, 3) A75 test (FMGC picks up trim fault), 4) land test (CAT IIIA/IIIB). In addition, the outbound crew did their preflight control check and did not mention a fault. When aircraft arrived destination, the actuator had to be changed again due to excessive right trim.

Google
 

Original NASA ASRS Text

Title: A321. RUDDER HYD ACTUATOR WAS REQUIRED TO BE REPLACED A SECOND TIME BECAUSE IT WAS NOT PROPERLY INSTALLED THE FIRST TIME.

Narrative: ON GRAVEYARD SHIFT FOR AUG/XA/01, WE WERE ASSIGNED ACFT XXX FOR A RUDDER TRIM MEL AND CAT MEL. WE INSTALLED THE ACTUATOR PER TASK DE-DD-BC-ADC MAINT MANUAL AND DID THE FOLLOWING CHKOUT: 1) ELECTRIC TRIM CHK, 2) HYD MOVEMENT OF RUDDER FOR LEAK CHK, 3) A75 TEST (FMGC PICKS UP TRIM FAULT), 4) LAND TEST (CAT IIIA/IIIB). IN ADDITION, THE OUTBOUND CREW DID THEIR PREFLT CTL CHK AND DID NOT MENTION A FAULT. WHEN ACFT ARRIVED DEST, THE ACTUATOR HAD TO BE CHANGED AGAIN DUE TO EXCESSIVE R TRIM.

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.