Narrative:

During the climb out of ZZZ, the flight attendant informed the captain that an audible whistle was coming from the 1L door. All the doors were showing closed, and the aircraft was pressurizing normally. After contacting maintenance, the decision was made to continue the flight. After landing, an inspection was made of the door area. A crack was found on the fuselage of the aircraft. It was determined that the aircraft was to be flown to YYY for repairs. Supplemental information from acn 628573: after landing, we inspected the door and found that it had been forcefully closed with the pins at the center of the door extended. The metal lip that the rubber seal seals against, had been bent and split by the impact on the forward and aft center of the door. We did not notice this during preflight and the flight attendant did not slam the door prior to flight. We can only conclude that it was done on a previous flight. All three of us walked through the door and missed the damage.

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Original NASA ASRS Text

Title: CRJ200 FLT ATTENDANT HEARD AN AUDIBLE WHISTLE NOISE COMING FROM THE VICINITY OF DOOR 1L. IT WAS LATER DISCOVERED THAT THE 1L DOOR HAD BEEN DAMAGED EARLIER.

Narrative: DURING THE CLB OUT OF ZZZ, THE FA INFORMED THE CAPT THAT AN AUDIBLE WHISTLE WAS COMING FROM THE 1L DOOR. ALL THE DOORS WERE SHOWING CLOSED, AND THE ACFT WAS PRESSURIZING NORMALLY. AFTER CONTACTING MAINT, THE DECISION WAS MADE TO CONTINUE THE FLT. AFTER LNDG, AN INSPECTION WAS MADE OF THE DOOR AREA. A CRACK WAS FOUND ON THE FUSELAGE OF THE ACFT. IT WAS DETERMINED THAT THE ACFT WAS TO BE FLOWN TO YYY FOR REPAIRS. SUPPLEMENTAL INFO FROM ACN 628573: AFTER LNDG, WE INSPECTED THE DOOR AND FOUND THAT IT HAD BEEN FORCEFULLY CLOSED WITH THE PINS AT THE CENTER OF THE DOOR EXTENDED. THE METAL LIP THAT THE RUBBER SEAL SEALS AGAINST, HAD BEEN BENT AND SPLIT BY THE IMPACT ON THE FORWARD AND AFT CENTER OF THE DOOR. WE DID NOT NOTICE THIS DURING PREFLT AND THE FA DID NOT SLAM THE DOOR PRIOR TO FLT. WE CAN ONLY CONCLUDE THAT IT WAS DONE ON A PREVIOUS FLT. ALL THREE OF US WALKED THROUGH THE DOOR AND MISSED THE DAMAGE.

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.