737/800 No takeoff warning

[OMillerJr]

I was attempting a take off and when I advanced the thruster the no takeoff warning buzzer started beeping. Flaps down, parking brake released and trim set in the green. I looked for several minutes but couldn't find anything else out of place. Anyone got an idea of what I might have overlooked? I finally ignored the buzzer and took off and as soon as the plane lifted off the buzzer stopped. Seems like this has happened before.

[Guest veggies]

Just curious. Have u set flaps 5 for take-off?-Djoko-

[OMillerJr]

Set flaps 10. Has always worked in the past.

[Guest veggies]

One more thing I can remember creates this problem,U arm the speedbrake..

[OMillerJr]

I thought it was but I'm not sure. I'll check that the next time. Thanks.

[OMillerJr]

Evidently you're right. Tried it with spoilers armed and got the warning, unarmed... no waring. I don't remember arming the spoilers when I had the problem. Thanks for the help.