Darryl Ramm wrote:
Where I keep my trailer in relatively dry conditions everybody leaves
the brakes on, the larger fear is the occasional strong wind, even if
the trailers are also chocked and well jacked. I've had several pilots
from the UK tell me that it is common at their clubs is to keep the
brake off because of this chance of seizure.

In Europe where manual gearboxes are still popular, most people know
that leaving the handbrake on for extended periods is not recommended.
In the USA with their authomatic gearboxes, this knowledge seems to have
got lost.

Mostly the problem is not corrosion of the cable but that the brake
shoes tend to somehow get "glued" to the drum. Forcing your trailer
backward may loosen the brakes, if you can do so without engaging the
override mechanism. Otherwise you may have to open the brake drums and
losen the shoes by hand.