+ sign in the flap limit speeds placard.

[mlindb]

In the 737NG there is a + sign written in the flap limit speeds placard, between flaps 1 and 2. Does anybody knows what is it for? Thank you.

[NSEU]

Most of the control panels in the cockpit should have these (unless someone has carelessly painted over them).

Behind the "+" is the power and earth connection for the panel lightplate. Most panels are made of clear plastic (with a layer of brown paint in the case of Boeings). Bulbs are located at various positions in the plastic and the clear plastic allows the transmission/refraction of light across the whole panel. The light comes through the panel where the lettering is.

Pictures are provided in the many previous postings on this subject.

Rgds.
NSEU

[Nightrider]

the mentioned colour "brown" may be read as "grey" for the starter kit aircraft of Mr. Boeing.... the beautiful 737...

[mlindb]

Thank you, NSEU.

[Checkboard]

Give the cross a shove with your thumb if the panel isn't lit. :ok: