Narrative:

During climb; a slight humming noise was heard during climb; gone in cruise and back again in the descent from what assumed to be a possible popped latch or open panel near where the gpu door is. Arriving in ZZZ; there were no defects seen and the latches were closed. Next leg; same noise and so the capt and I both looked all over the nose area for any defect causing the humming noise and saw no defects and assumed it was a hinge on the gpu door that had been written up multiple times before. The leg back to ZZZ1; again the same noise and we decided it was time for maintenance to inspect further; the door was not the issue. We looked at the door and the hinge was just as sturdy as all the other panels of similar size. I called maintenance and told them of the problem; and that I was not comfortable taking the aircraft until it was fixed. The mx technician signed it off with the same corrective action as the prior write-up and left without explaining the issue or asking if we were satisfied with the fix. We looked at the door and nothing big had been done to ensure the issue was truly fixed. We called the chief pilot and stated the issue of being uncomfortable with the way maintenance dealt with this issue and that there was an issue with this aircraft and that something was wrong. Especially since in a one month period; there had been 7 write ups for the same issue and all of them failed to find the true issue and fix it. The chief pilot told us to fly it anyway! During climb; the noise of course came back and we downed it again in [destination]. This is unsafe by maintenance to blow off the issue with multiple write-ups for the same discrepancy and to not perform an operational check flight to ensure the issue was truly fixed. The gear door could easily not be aligning up properly and causing undue stress to the door. Something is loose or not connected causing a humming noise and it is forward of the engine intake; making myself feel unsafe flying in an airplane that was known to have a problem. However; maintenance wrote it off without ensuring the problem is fixed and the chief pilot after being informed the crew was uncomfortable; was told to fly anyway. The event occurred because maintenance is not taking time to ensure aircraft discrepancies are corrected properly; especially when they have been written up multiple times. We told the mechanic the issue was written up many times before; and he plain out said he didn't care about previous write ups; he would just inspect it himself. Don't force crews to fly in aircraft with unknown issues that could easily increase to a safety of flight issue.

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Original NASA ASRS Text

Title: CRJ-900 First Officer reported being uncomfortable with what he felt was undue pressure to fly an aircraft with mechanical issues.

Narrative: During climb; a slight humming noise was heard during climb; gone in cruise and back again in the descent from what assumed to be a possible popped latch or open panel near where the GPU door is. Arriving in ZZZ; there were no defects seen and the latches were closed. Next leg; same noise and so the Capt and I both looked all over the nose area for any defect causing the humming noise and saw no defects and assumed it was a hinge on the GPU door that had been written up multiple times before. The leg back to ZZZ1; again the same noise and we decided it was time for Maintenance to inspect further; the door was not the issue. We looked at the door and the hinge was just as sturdy as all the other panels of similar size. I called maintenance and told them of the problem; and that I was not comfortable taking the aircraft until it was fixed. The Mx technician signed it off with the same corrective action as the prior write-up and left without explaining the issue or asking if we were satisfied with the fix. We looked at the door and nothing big had been done to ensure the issue was truly fixed. We called the chief pilot and stated the issue of being uncomfortable with the way maintenance dealt with this issue and that there was an issue with this aircraft and that something was wrong. Especially since in a one month period; there had been 7 write ups for the same issue and all of them failed to find the true issue and fix it. The chief pilot told us to fly it anyway! During climb; the noise of course came back and we downed it again in [destination]. This is unsafe by Maintenance to blow off the issue with multiple write-ups for the same discrepancy and to not perform an operational check flight to ensure the issue was truly fixed. The gear door could easily not be aligning up properly and causing undue stress to the door. Something is loose or not connected causing a humming noise and it is forward of the engine intake; making myself feel unsafe flying in an airplane that was known to have a problem. However; maintenance wrote it off without ensuring the problem is fixed and the chief pilot after being informed the crew was uncomfortable; was told to fly anyway. The event occurred because maintenance is not taking time to ensure aircraft discrepancies are corrected properly; especially when they have been written up multiple times. We told the mechanic the issue was written up many times before; and he plain out said he didn't care about previous write ups; he would just inspect it himself. Don't force crews to fly in aircraft with unknown issues that could easily increase to a safety of flight issue.

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.