DHC8-100 first officer reports flying the entire leg with the flaps left inadvertently at the 5 degr...

Attributes
ACN	1142730
Time
Date	201401
Local Time Of Day	0001-0600
Place
Locale Reference	ZZZ.ARTCC
State Reference	US
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Make Model Name	Dash 8-100
Operating Under FAR Part	Part 121
Flight Phase	Cruise
Component
Aircraft Component	Trailing Edge Flap
Person 1
Function	Pilot Flying First Officer
Qualification	Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Total 3800 Flight Crew Type 2500
Events
Anomaly	Deviation - Procedural Published Material / Policy Deviation - Speed All Types

Narrative:

We flew with the flaps in the 5 degree detent the entire flight which exceeded the speed restriction of 148 knots with the flaps at 5. We cruised at 180 knots for the flight. The event was realized on approach when I called for the flaps to 15. The event occurred because of our lack of awareness that the flaps were not retracted to the 0 detent at 1;000 ft AGL and also not realizing the mistake when doing the after takeoff checklist and an insufficient scan of the instruments in cruise. We immediately contacted dispatch and maintenance control to have the airplane inspected.

Original NASA ASRS Text

Title: DHC8-100 First Officer reports flying the entire leg with the flaps left inadvertently at the 5 degree position. The published flap speed was exceeded by 32 knots.

Narrative: We flew with the flaps in the 5 degree detent the entire flight which exceeded the speed restriction of 148 knots with the flaps at 5. We cruised at 180 knots for the flight. The event was realized on approach when I called for the flaps to 15. The event occurred because of our lack of awareness that the flaps were not retracted to the 0 detent at 1;000 FT AGL and also not realizing the mistake when doing the after takeoff checklist and an insufficient scan of the instruments in cruise. We immediately contacted Dispatch and Maintenance control to have the airplane inspected.

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.

DHC8-100 first officer reports flying the entire leg with the flaps left inadvertently at the 5 degree position. The published flap speed was exceeded by 32 knots.