A B767-300 first officer reported a third rejected takeoff in the same aircraft for a takeoff config...

Attributes
ACN	955142
Time
Date	201106
Local Time Of Day	1801-2400
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Dusk
Aircraft 1
Make Model Name	B767-300 and 300 ER
Operating Under FAR Part	Part 121
Flight Phase	Takeoff
Flight Plan	IFR
Component
Aircraft Component	MCP
Person 1
Function	Pilot Not Flying First Officer
Experience	Flight Crew Last 90 Days 75 Flight Crew Total 5000 Flight Crew Type 75
Events
Anomaly	Aircraft Equipment Problem Critical

Narrative:

After maintenance [was] performed on aircraft (replaced the mode control panel (MCP)); the aircraft was returned to service. We verified all proper takeoff settings prior to taking the runway (flaps 15; indicating 15; spoilers down). This was the 3rd [takeoff] attempt that day in this aircraft. Applied takeoff thrust; selected 'thr' [(thrust)] on the MCP; and started acceleration. At approximately 40 KIAS; received the takeoff configuration warnings again (aural; configuration light; flaps and spoilers messages on EICAS). Performed the rejected [takeoff] and taxied clear of runway. All takeoff settings and indications were set properly for takeoff; [so we] returned to ramp for maintenance again.

Original NASA ASRS Text

Title: A B767-300 First Officer reported a third rejected takeoff in the same aircraft for a takeoff configuration warning at 40 KTS after THR (thrust) was selected on the the MCP.

Narrative: After maintenance [was] performed on aircraft (replaced the Mode Control Panel (MCP)); the aircraft was returned to service. We verified all proper takeoff settings prior to taking the runway (flaps 15; indicating 15; spoilers down). This was the 3rd [takeoff] attempt that day in this aircraft. Applied takeoff thrust; selected 'THR' [(thrust)] on the MCP; and started acceleration. At approximately 40 KIAS; received the takeoff configuration warnings again (aural; configuration light; flaps and spoilers messages on EICAS). Performed the rejected [takeoff] and taxied clear of runway. All takeoff settings and indications were set properly for takeoff; [so we] returned to ramp for maintenance again.

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.

A B767-300 first officer reported a third rejected takeoff in the same aircraft for a takeoff configuration warning at 40 KTS after thr (thrust) was selected on the the MCP.