Testing of idle reverse thrust before takeoff. A wise precaution?

[Uplinker]

Originally Posted by A37575

https://avherald.com/h?article=4c5b3f3d&opt=0

An A320 lands and reverse thrust fails to operate. There had been no prior warning flags in the cockpit.

Which is one reason why PM calls reversers green/amber during rollout.

..........and the crew were unaware the reversers had been locked out.

I think the reverser lockout pins are visible on the sides of the engine nacelle, when fitted?

......... Another cue for good airmanship?

Or checking during the walkaround to see if the lockout pins had been fitted?