Narrative:

ECAM 'left main landing gear failed to retract' alert. First officer continued flying responsibilities. Captain ran ECAM; QRH and follow up actions. Returned to field normal approach and landing. First officer leg. Normal pre-departure and taxi. After takeoff left landing gear would not retract. Accomplished ECAM; QRH and follow up procedures (recycle gear). After recycle gear was down 3 green normal. Advised ZZZ a return to field; normal operations. Requested box pattern to burn below maximum landing weight. Approach and landing normal. Met maintenance at gate. Maintenance informed us gear lock without flap streamer was left in aircraft after overnight maintenance. Apologized for miscue attached streamer flag to gear lock cleared logbook and proceeded to ZZZ1. Even though this was a first flight of day it mirrors the many harried and unnecessary aircraft changes in 1 day. Come in late change aircraft do it quick be not on time but 10 mins prior to departure. Only to get the same aircraft back the next time through. Not making excuses but pointing out that in trying to keep this airline on time we rush ourselves into missteps and a pattern of missteps. If only we had the time on the line to operate like we do in the simulator.

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Original NASA ASRS Text

Title: AN A319'S L MAIN LNDG GEAR DID NOT RETRACT AFTER TKOF BECAUSE AN UNFLAGGED GEAR PIN WAS NOT REMOVED BEFORE FLT.

Narrative: ECAM 'L MAIN LNDG GEAR FAILED TO RETRACT' ALERT. FO CONTINUED FLYING RESPONSIBILITIES. CAPT RAN ECAM; QRH AND FOLLOW UP ACTIONS. RETURNED TO FIELD NORMAL APCH AND LNDG. FO LEG. NORMAL PRE-DEP AND TAXI. AFTER TKOF L LNDG GEAR WOULD NOT RETRACT. ACCOMPLISHED ECAM; QRH AND FOLLOW UP PROCS (RECYCLE GEAR). AFTER RECYCLE GEAR WAS DOWN 3 GREEN NORMAL. ADVISED ZZZ A RETURN TO FIELD; NORMAL OPS. REQUESTED BOX PATTERN TO BURN BELOW MAX LNDG WT. APCH AND LNDG NORMAL. MET MAINT AT GATE. MAINT INFORMED US GEAR LOCK WITHOUT FLAP STREAMER WAS LEFT IN ACFT AFTER OVERNIGHT MAINT. APOLOGIZED FOR MISCUE ATTACHED STREAMER FLAG TO GEAR LOCK CLRED LOGBOOK AND PROCEEDED TO ZZZ1. EVEN THOUGH THIS WAS A FIRST FLT OF DAY IT MIRRORS THE MANY HARRIED AND UNNECESSARY ACFT CHANGES IN 1 DAY. COME IN LATE CHANGE ACFT DO IT QUICK BE NOT ON TIME BUT 10 MINS PRIOR TO DEP. ONLY TO GET THE SAME ACFT BACK THE NEXT TIME THROUGH. NOT MAKING EXCUSES BUT POINTING OUT THAT IN TRYING TO KEEP THIS AIRLINE ON TIME WE RUSH OURSELVES INTO MISSTEPS AND A PATTERN OF MISSTEPS. IF ONLY WE HAD THE TIME ON THE LINE TO OPERATE LIKE WE DO IN THE SIMULATOR.

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