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B737 first officer reported the left wing trailing edge inboard flap was found to be in an extended position during the post flight walk around .
| Attributes | |
| ACN | 1521126 |
| Time | |
| Date | 201802 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Light | Night |
| Aircraft 1 | |
| Make Model Name | B737-700 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Parked |
| Component | |
| Aircraft Component | Trailing Edge Flap |
| Person 1 | |
| Function | First Officer Pilot Not Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument Flight Crew Multiengine |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe |
Narrative:
On the previous flight; we landed in ZZZ where the weather was light snow; broken 004; ovc 900 and light winds. I believe the temperature was around three degrees. On landing the braking action was good and the runway from what I recall was mostly clean. After landing we retracted the flaps as normal to the up position and taxied to the gate with no indication of any problems. Prior to departure from ZZZ to ZZZ1; we did two-step de-icing; and took off within five minutes of completion. After takeoff the flaps retracted on schedule with no problems or any indication of any problems. The flight was just about one hour long to ZZZ1 and it was uneventful. We experienced no vibrations; excessive roll or any indications of a flap problem. The weather in ZZZ1 was well above freezing and VFR upon our arrival. After landing the captain called for flaps up as we taxied to the gate. Again we received no indications of any flap malfunctions. While doing the termination flight walkaround I noticed that the inboard trailing edge flap on the left wing was still extended and found what appeared to be part of the flap track protruding out the bottom of the pylon. This was the only flap that was out of position and again no indications of any problem in the flight deck.
Original NASA ASRS Text
Title: B737 First Officer reported the left wing trailing edge inboard flap was found to be in an extended position during the post flight walk around .
Narrative: On the previous flight; we landed in ZZZ where the weather was light snow; BKN 004; OVC 900 and light winds. I believe the temperature was around three degrees. On landing the braking action was good and the runway from what I recall was mostly clean. After landing we retracted the flaps as normal to the up position and taxied to the gate with no indication of any problems. Prior to departure from ZZZ to ZZZ1; we did two-step de-icing; and took off within five minutes of completion. After takeoff the flaps retracted on schedule with no problems or any indication of any problems. The flight was just about one hour long to ZZZ1 and it was uneventful. We experienced no vibrations; excessive roll or any indications of a Flap problem. The weather in ZZZ1 was well above freezing and VFR upon our arrival. After landing the Captain called for flaps up as we taxied to the gate. Again we received no indications of any flap malfunctions. While doing the termination flight walkaround I noticed that the inboard trailing edge flap on the left wing was still extended and found what appeared to be part of the flap track protruding out the bottom of the pylon. This was the only flap that was out of position and again no indications of any problem in the flight deck.
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.