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A Q400 flight crew experienced a flap power failure during approach with flaps at ten degrees. After complying with QRH procedures and declaring an emergency a ten degree flap landing was made.
| Attributes | |
| ACN | 940011 |
| Time | |
| Date | 201103 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Make Model Name | Q400 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Initial Approach |
| Component | |
| Aircraft Component | Trailing Edge Flap |
| Person 1 | |
| Function | Pilot Not Flying First Officer |
| Qualification | Flight Crew Commercial |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe |
Narrative:
We began an approach to our assigned runway and started to configure our aircraft for landing. After selecting flaps five and gear down we then continued configuration with flaps ten and fifteen. Shortly after selecting flaps to fifteen degrees we observed a master caution on the caution warning panel for flap power. The flap indicator showed our flaps were at ten degrees; not the selected fifteen. We then notified ATC and executed a missed approach climbing to 3;000 ft via radar vectors. At which point we began QRH procedures and notified dispatch via ACARS. After completing QRH procedures we contacted maintenance control and dispatch via a phone patch. Maintenance control instructed us not to reselect another flap setting and to leave flaps at current position. This position was ten degrees. Due to a lack of a flap ten approach profile and unable to move this flight control surface; an emergency was declared with ATC. We requested to land on the longest runway. We resent for landing data via ACARS respective to flaps ten. We then re-ran a descent checklist and notified operations and flight attendants of our condition. Our flight attendants prepared for an emergency landing. We were then given vectors and cleared for the approach. We then landed successfully without incident and taxied off the runway to our gate without event.
Original NASA ASRS Text
Title: A Q400 flight crew experienced a flap power failure during approach with flaps at ten degrees. After complying with QRH procedures and declaring an emergency a ten degree flap landing was made.
Narrative: We began an approach to our assigned runway and started to configure our aircraft for landing. After selecting flaps five and gear down we then continued configuration with flaps ten and fifteen. Shortly after selecting flaps to fifteen degrees we observed a master caution on the caution warning panel for FLAP POWER. The flap indicator showed our flaps were at ten degrees; not the selected fifteen. We then notified ATC and executed a missed approach climbing to 3;000 FT via radar vectors. At which point we began QRH procedures and notified Dispatch via ACARS. After completing QRH procedures we contacted Maintenance Control and Dispatch via a phone patch. Maintenance Control instructed us not to reselect another flap setting and to leave flaps at current position. This position was ten degrees. Due to a lack of a flap ten approach profile and unable to move this flight control surface; an emergency was declared with ATC. We requested to land on the longest runway. We resent for landing data via ACARS respective to flaps ten. We then re-ran a descent checklist and notified operations and flight attendants of our condition. Our flight attendants prepared for an emergency landing. We were then given vectors and cleared for the approach. We then landed successfully without incident and taxied off the runway to our gate without event.
Data retrieved from NASA's ASRS site as of April 2012 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.