Narrative:

During approach to landing at about 1;300 AGL the ca called for flaps 30 from the current position of 25. The ca noticed that the handle was in the 30 position and the trailing edge flap indicator was still indicating 25.we both verified that the flap handle was in the 30 position so I moved it to 25 then back to 30. When the indicator still did not move I momentarily placed the handle to 40 and then back to 30 and there was no indicator movement. The indicator did not move and we believed the indicator was stuck. Both left and right flap indicator needles were completely matched so it did not present an obvious flap asymmetry situation.the leading edge indicators were all green and pitch for target speed was normal. At approximately 300 feet AGL; the ca asked if I was comfortable to continue and I replied; 'absolutely' as I was concerned about a go-around with the potential inability to retract the flaps while we were stabilized for landing with flaps extended to at least 25 with an appropriate runway directly in front of us. The too low flap aural warning then activated so I deactivated it. The ca landed the aircraft normally. At no time did we believe we were in any undesired state.after landing I regret completing the after landing flow and moving the flap indicator back to zero out of habit. As soon as I moved the flap handle we both immediately realized the desire to leave the flaps extended for maintenance. When I moved the flap handle back to 30 the flaps indicators displayed 30. I feel it was far safer to make the normal landing then to go around with an indicted flight control problem so I completely support the ca's decision to land.

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Original NASA ASRS Text

Title: B737 flight crew notes flaps at 25 degrees during the landing check with the flap handle set to 30. The First Officer moves the flap handle to 25 then back to 30 with no change; then 40 and back to 30 with no change. The Captain elects to land in the current configuration.

Narrative: During approach to landing at about 1;300 AGL the CA called for flaps 30 from the current position of 25. The CA noticed that the handle was in the 30 position and the trailing edge flap indicator was still indicating 25.We both verified that the flap handle was in the 30 position so I moved it to 25 then back to 30. When the indicator still did not move I momentarily placed the handle to 40 and then back to 30 and there was no indicator movement. The indicator did not move and we believed the indicator was stuck. Both L and R flap indicator needles were completely matched so it did not present an obvious flap asymmetry situation.The leading edge indicators were all green and pitch for target speed was normal. At approximately 300 feet AGL; the CA asked if I was comfortable to continue and I replied; 'absolutely' as I was concerned about a go-around with the potential inability to retract the flaps while we were stabilized for landing with flaps extended to at least 25 with an appropriate runway directly in front of us. The too low flap aural warning then activated so I deactivated it. The CA landed the aircraft normally. At no time did we believe we were in any undesired state.After landing I regret completing the after landing flow and moving the flap indicator back to zero out of habit. As soon as I moved the flap handle we both immediately realized the desire to leave the flaps extended for maintenance. When I moved the flap handle back to 30 the flaps indicators displayed 30. I feel it was far safer to make the normal landing then to go around with an indicted flight control problem so I completely support the CA's decision to land.

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.