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A DHC8-400 'flap power' caution alerted during descent. After resetting the fault; the 'flap drive' caution alerted. An emergency was declared and a no-flap landing followed. The 'flap power' anomaly occurred on the previous flight also.
| Attributes | |
| ACN | 815869 |
| Time | |
| Date | 200812 |
| Local Time Of Day | 0001 To 0600 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | Q400 (Formerly Dash 8-400) |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial |
| ASRS Report | 815869 |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper maintenance |
| Independent Detector | aircraft equipment other aircraft equipment : caution system |
| Resolutory Action | flight crew : landed in emergency condition flight crew : declared emergency |
| Supplementary | |
| Problem Areas | Aircraft Maintenance Human Performance |
| Primary Problem | Aircraft |
Narrative:
Aircraft late into ZZZ with a write-up of a flap power caution on descent. Maintenance checked codes and faults; performed operations check and cleared write-up. Upon descent into ZZZ1 for landing; selected flaps 5 degrees and flaps power caution light came on. Completed the flap power caution checklist. During the reset of the system we also had a flap drive caution light which was not mentioned in the flap power checklist. Flaps would not come down; declared an emergency with ATC; advised the flight attendants and passengers of the situation. Performed a zero flap landing with no other problems and proceeded to the gate.
Original NASA ASRS Text
Title: a DHC8-400 'Flap Power' caution alerted during descent. After resetting the fault; the 'Flap Drive' caution alerted. An emergency was declared and a no-flap landing followed. The 'Flap Power' anomaly occurred on the previous flight also.
Narrative: Aircraft late into ZZZ with a write-up of a Flap Power caution on descent. Maintenance checked codes and faults; performed operations check and cleared write-up. Upon descent into ZZZ1 for landing; selected Flaps 5 degrees and Flaps Power caution light came on. Completed the Flap Power caution checklist. During the reset of the system we also had a Flap Drive caution light which was not mentioned in the Flap Power checklist. Flaps would not come down; declared an emergency with ATC; advised the Flight Attendants and passengers of the situation. Performed a Zero Flap landing with no other problems and proceeded to the gate.
Data retrieved from NASA's ASRS site as of May 2009 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.