An ERJ190's takeoff configuration horn alerted as takeoff thrust was set because the mcdu takeoff fl...

Attributes
ACN	882695
Time
Date	201004
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Make Model Name	EMB ERJ 190/195 ER&LR
Operating Under FAR Part	Part 121
Flight Phase	Takeoff
Flight Plan	IFR
Component
Aircraft Component	FMS/FMC
Person 1
Function	Pilot Not Flying Captain
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Aircraft Equipment Problem Critical Deviation - Procedural Published Material / Policy Inflight Event / Encounter Weather / Turbulence

Narrative:

Performance data for flap 3 takeoff. Called 'flaps 3 taxi' but first officer by habit set flaps 2. I caught the error and he selected flaps 3. Taxi checklist performed - I double checked flaps 3 on both on ecas and handle position. 'Takeoff configuration ok' aural received. At toga thrust got a configuration warning - flaps. We were departing runway 9 and landings to CAT ii were being performed on runway 4. If I rejected the takeoff I feared we'd stop on the runway 4 landing threshold directly in front of incoming aircraft at CAT ii visibility. I triple checked flaps at 3 on ecas and handle position and continued the takeoff. First officer never updated the mcdu to flaps 3 causing a false configuration warning. Update the take off configuration software to check the mcdu and actual flap selections to prevent false configuration warnings.

Original NASA ASRS Text

Title: An ERJ190's Takeoff Configuration horn alerted as takeoff thrust was set because the MCDU takeoff flap setting was mis-set and did not agree with the flap handle. The flap setting was correct so the Captain continued the takeoff.

Narrative: Performance data for flap 3 takeoff. Called 'flaps 3 taxi' but First Officer by habit set flaps 2. I caught the error and he selected flaps 3. Taxi checklist performed - I double checked flaps 3 on both on ECAS and handle position. 'Takeoff configuration ok' aural received. At TOGA thrust got a configuration warning - flaps. We were departing Runway 9 and landings to CAT II were being performed on Runway 4. If I rejected the takeoff I feared we'd stop on the Runway 4 landing threshold directly in front of incoming aircraft at CAT II visibility. I triple checked flaps at 3 on ECAS and handle position and continued the takeoff. First Officer never updated the MCDU to flaps 3 causing a false configuration warning. Update the take off configuration software to check the MCDU and actual flap selections to prevent false configuration warnings.

Data retrieved from NASA's ASRS site as of April 2012 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.

An ERJ190's takeoff configuration horn alerted as takeoff thrust was set because the mcdu takeoff flap setting was mis-set and did not agree with the flap handle. The flap setting was correct so the captain continued the takeoff.