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DHC8-200 flight crew note the failure of the number one aux fuel pump to turn off after takeoff when the switch is selected off. Shortly thereafter fuel is noted to be disappearing from the number one main fuel tank. An emergency is declared and the flight returns to departure airport. During approach the aux pump light went out and the tank appeared to stop loosing fuel.
| Attributes | |
| ACN | 1041313 |
| Time | |
| Date | 201210 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Aircraft 1 | |
| Make Model Name | Dash 8-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Climb |
| Component | |
| Aircraft Component | Fuel Booster Pump |
| Person 1 | |
| Function | First Officer |
| Qualification | Flight Crew Commercial |
| Person 2 | |
| Function | Captain |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
After takeoff I accomplished the climb checklist; we noticed that the #1 aux pump light didn't extinguish. I cycled the #1 aux pump switch on and off to try and get the problem resolved; we were unable to get the light to extinguish. I notified ATC and contacted company operations to notify them of the issue. Shortly after we noticed that we had significantly less fuel on the #1 main tank; and it was dropping rapidly. The captain declared an emergency with ATC and we returned. When time permitted I advised the flight attendant and passengers of the situation at hand and that we were returning. During the flight; after we had declared an emergency; the #1 aux pump light went out and it appeared that we had stopped losing fuel.
Original NASA ASRS Text
Title: DHC8-200 flight crew note the failure of the number one Aux fuel pump to turn off after takeoff when the switch is selected off. Shortly thereafter fuel is noted to be disappearing from the number one main fuel tank. An emergency is declared and the flight returns to departure airport. During approach the Aux pump light went out and the tank appeared to stop loosing fuel.
Narrative: After takeoff I accomplished the climb checklist; we noticed that the #1 Aux pump light didn't extinguish. I cycled the #1 Aux pump switch on and off to try and get the problem resolved; we were unable to get the light to extinguish. I notified ATC and contacted Company Operations to notify them of the issue. Shortly after we noticed that we had significantly less fuel on the #1 main tank; and it was dropping rapidly. The Captain declared an emergency with ATC and we returned. When time permitted I advised the Flight Attendant and passengers of the situation at hand and that we were returning. During the flight; after we had declared an emergency; the #1 Aux pump light went out and it appeared that we had stopped losing fuel.
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.