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B737-800 flight crew experiences a flap disagreement between the selected setting and the indicated setting during approach and goes around. Crew elects to divert to a longer runway and lands with flaps indicating 15 using the alternate extension system.
| Attributes | |
| ACN | 1054551 |
| Time | |
| Date | 201212 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Aircraft 1 | |
| Make Model Name | B737-800 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Initial Approach |
| Component | |
| Aircraft Component | Flap/Slat Indication |
| Person 1 | |
| Function | Captain Pilot Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Person 2 | |
| Function | Pilot Not Flying First Officer |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
On approach; flaps indicator showed flaps 2 with flaps extended to a greater flap setting. Unable to land due to a flaps 2 indication [runway length]. Declared an emergency; contacted dispatch via ACARS that we were an emergency aircraft and were diverting. Ran the QRH procedure and landed with flaps 15 using alternate flap extensions. Landed without incident.
Original NASA ASRS Text
Title: B737-800 flight crew experiences a flap disagreement between the selected setting and the indicated setting during approach and goes around. Crew elects to divert to a longer runway and lands with flaps indicating 15 using the alternate extension system.
Narrative: On approach; flaps indicator showed flaps 2 with flaps extended to a greater flap setting. Unable to land due to a flaps 2 indication [runway length]. Declared an emergency; contacted Dispatch via ACARS that we were an emergency aircraft and were diverting. Ran the QRH procedure and landed with flaps 15 using alternate flap extensions. Landed without incident.
Data retrieved from NASA's ASRS site as of July 2013 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.