737 landing lights

[doomsday]

I believe there is a time limitation of the use of the outboard landing lights but can't find it anywhere in the manuals
(probably not looking hard enough). Any ideas? Ta

[spanners]

Hi
I remember reading from the maintenance manual that the lights have time limit on them if not in flight as the airflow cools the light. On the ground with no airflow they could overheat.
Someone with access to the MM should be able to confirm.
Cheers:)