Narrative:

The aircrew experienced an emergency change of flight controls on takeoff. During the taxi out of phase of flight; the aircraft entered de-icing treatment. Upon taxi to runway it was briefed that windshield wipers maybe needed upon takeoff roll as the de-ice fluid can build up on the windshield on the takeoff roll limiting visibility. On takeoff roll; the right seat; flying pilot lost visual with the runway due to the buildup of de-icing fluid and called for windshield wipers. The windshield wipers were turned on but did not function correctly and did not wipe. The left seat pilot took the control via an emergency transfer of controls and continued the takeoff. Upon climb out the controls were transferred back to the right seat pilot when visibility improved. As a result of this action; the climb checklist was not called for; or run; and the flaps remained in the flaps 9 setting. The flap 9 maximum speed of 250 knots was exceeded; to approximately 260 knots; however; the crew was not focused on the airspeed in relation to the 250 knots limit.[I] suggest continued adherence to company established procedures even in the event of non-standard flight conditions. Upon return to a standard flight condition; checklist should be double-checked to ensure continued compliance. [I also] suggest actuating the windshield wipers during daily maintenance checks; or at some other regular interval. The wipers ended up working later in flight but sadly; not when they were needed.

Related reports:

Google
 

Original NASA ASRS Text

Title: EMB-145 First Officer reported an emergency transfer of flight controls on takeoff roll due to windshield wipers malfunction that led to a flap overspeed.

Narrative: The aircrew experienced an emergency change of flight controls on takeoff. During the taxi out of phase of flight; the aircraft entered de-icing treatment. Upon taxi to runway it was briefed that windshield wipers maybe needed upon takeoff roll as the de-ice fluid can build up on the windshield on the takeoff roll limiting visibility. On takeoff roll; the right seat; flying pilot lost visual with the runway due to the buildup of de-icing fluid and called for windshield wipers. The windshield wipers were turned ON but did not function correctly and did not wipe. The left seat pilot took the control via an emergency transfer of controls and continued the takeoff. Upon climb out the controls were transferred back to the right seat pilot when visibility improved. As a result of this action; the Climb Checklist was not called for; or run; and the flaps remained in the Flaps 9 setting. The flap 9 maximum speed of 250 knots was exceeded; to approximately 260 knots; however; the crew was not focused on the airspeed in relation to the 250 knots limit.[I] suggest continued adherence to Company established procedures even in the event of non-standard flight conditions. Upon return to a standard flight condition; checklist should be double-checked to ensure continued compliance. [I also] suggest actuating the windshield wipers during daily maintenance checks; or at some other regular interval. The wipers ended up working later in flight but sadly; not when they were needed.

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.