Narrative:

During arrival to ZZZ1 we had pulled up the paperwork for the next leg and noticed that we had a different aircraft; but we thought we were supposed to keep the airplane that we were currently flying. Upon arrival at ZZZ1; we were informed by the gate agent that we had a plane change due to the fact that our airplane; as he put it; 'I heard your airplane was broken.' after inquiring as to what was wrong with the airplane we were told that during the previous night a control actuator was replaced but the aircraft was never test flown afterwards. When we reviewed the paperwork at ZZZ2 operations in the morning; we had never seen anything on the paperwork or maintenance release document to indicate that anything had been done to the aircraft the night before we flew it.

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Original NASA ASRS Text

Title: AN A320 WAS OPERATED FOR 2 REVENUE FLTS THEN WAS TAKEN OTS TO PERFORM A REQUIRED TEST FLT FOR FLT CTL ACTUATOR REPLACEMENT.

Narrative: DURING ARR TO ZZZ1 WE HAD PULLED UP THE PAPERWORK FOR THE NEXT LEG AND NOTICED THAT WE HAD A DIFFERENT ACFT; BUT WE THOUGHT WE WERE SUPPOSED TO KEEP THE AIRPLANE THAT WE WERE CURRENTLY FLYING. UPON ARR AT ZZZ1; WE WERE INFORMED BY THE GATE AGENT THAT WE HAD A PLANE CHANGE DUE TO THE FACT THAT OUR AIRPLANE; AS HE PUT IT; 'I HEARD YOUR AIRPLANE WAS BROKEN.' AFTER INQUIRING AS TO WHAT WAS WRONG WITH THE AIRPLANE WE WERE TOLD THAT DURING THE PREVIOUS NIGHT A CTL ACTUATOR WAS REPLACED BUT THE ACFT WAS NEVER TEST FLOWN AFTERWARDS. WHEN WE REVIEWED THE PAPERWORK AT ZZZ2 OPS IN THE MORNING; WE HAD NEVER SEEN ANYTHING ON THE PAPERWORK OR MAINT RELEASE DOCUMENT TO INDICATE THAT ANYTHING HAD BEEN DONE TO THE ACFT THE NIGHT BEFORE WE FLEW IT.

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