landing lights
It also saves on fuel.
Dispatch deviation list quotes 3% increase if stuck in the open position.
I am not sure that they actually scare birds away so the fuel saving is a relevant reason to retract landing lights below 10,000.
10kg each sector for 7 sectors each day for 29 aircraft flying 330 days each year.
do the maths.
Last edited by Meek; 15th February 2009 at 12:34.
Reason: clarification