Air carrier flight crew reported they failed to retract flaps after departure.

Attributes
ACN	1682187
Time
Date	201909
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Light	Daylight
Aircraft 1
Make Model Name	EMB ERJ 145 ER/LR
Operating Under FAR Part	Part 121
Flight Phase	Climb
Flight Plan	IFR
Component
Aircraft Component	Trailing Edge Flap
Person 1
Function	Pilot Flying Captain
Qualification	Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument
Events
Anomaly	Deviation - Procedural Published Material / Policy Deviation - Speed All Types

Narrative:

On climb out; first officer noticed the flaps were still out at 300kias. We slowed down and retracted flaps and continued to destination. First officer saw flaps at 9. Crew did not complete after take off checklist correctly. Slowed and retracted flaps. Crew should be more vigilant after take off and completed checklists. Also as you climb through 10;000 feet; check your configurations again.

Original NASA ASRS Text

Title: Air carrier flight crew reported they failed to retract flaps after departure.

Narrative: On climb out; First Officer noticed the flaps were still out at 300kias. We slowed down and retracted flaps and continued to destination. FO saw flaps at 9. Crew did not complete after take off checklist correctly. Slowed and retracted flaps. Crew should be more vigilant after take off and completed checklists. Also as you climb through 10;000 feet; check your configurations again.

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.