benhurr
If the engine is going to be started then the anti-collision lights have to be on.
Forgive me for being picky here, but - says who?
It's good aviation practice, but it's not law in aircraft below a certain weight. Why? Because the legislators actually realise Mr Piper made a mistake with the Warrior
(There are other reasons, but they're not relevant)
I have been asked to turn my strobes off (at night) which leaves me with no anti-colls on. IF I had a collision what do you reckon my insurer would say?
Probably nothing, because Anti-Collision lights are requirement for flight - not ground operations.
And if you don't believe me - the ANO is always worth a read