A captain and first officer (first officer) decide to depart after observing that both left and righ...

Narrative:

We picked up a crj-200 aircraft in ZZZ this morning and flew it to ZZZ1-ZZZ2-ZZZ1-ZZZ3. In ZZZ2 the first officer (first officer) came back from doing his walk around and came back up to the flight deck to ask me to come down and take a look at the flaps to see a part of it sticking out on the outside of the fairing. I though it was normal and to confirm it was; we walked to the other wing to see if it was there or not. It was there and it looked just like the other side. The first officer and I agreed it was normal and we flew back to ZZZ1 without any event. In ZZZ1; we called maintenance to come out and take a look at it and when they did; they told us that someone put the left part on the right side of the wing and the right part on the left side of the wing. It took maintenance about 30-minutes to swap the parts and clear the logbook write-up. We continued on to ZZZ3 with the same aircraft.

Original NASA ASRS Text

Title: A Captain and First Officer (F/O) decide to depart after observing that both Left and Right Flap fairings had a section of flap sticking out of the fairings on a CRJ-200 aircraft. Maintenance noted the flap fairings had been installed in opposite positions.

Narrative: We picked up a CRJ-200 aircraft in ZZZ this morning and flew it to ZZZ1-ZZZ2-ZZZ1-ZZZ3. In ZZZ2 the First Officer (F/O) came back from doing his walk around and came back up to the flight deck to ask me to come down and take a look at the flaps to see a part of it sticking out on the outside of the fairing. I though it was normal and to confirm it was; we walked to the other wing to see if it was there or not. It was there and it looked just like the other side. The F/O and I agreed it was normal and we flew back to ZZZ1 without any event. In ZZZ1; we called Maintenance to come out and take a look at it and when they did; they told us that someone put the left part on the right side of the wing and the right part on the left side of the wing. It took Maintenance about 30-minutes to swap the parts and clear the logbook write-up. We continued on to ZZZ3 with the same aircraft.

Data retrieved from NASA's ASRS site 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	1177305
Time
Date	201406
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Light	Daylight
Aircraft 1
Make Model Name	Regional Jet 200 ER/LR (CRJ200)
Operating Under FAR Part	Part 121
Flight Phase	Parked
Component
Aircraft Component	Flap Fairing
Person 1
Function	Captain
Qualification	Flight Crew Air Transport Pilot (ATP)
Person 2
Function	First Officer Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Aircraft Equipment Problem Less Severe Deviation - Procedural Published Material / Policy

A captain and first officer (first officer) decide to depart after observing that both left and right flap fairings had a section of flap sticking out of the fairings on a crj-200 aircraft. Maintenance noted the flap fairings had been installed in opposite positions.