Sunday

What fabulous weather!
Nice change from the last few flying days, no icy breeze today.

 The sun is nice and warm on your back, just right for gas-bagging.

 Brian brought his lovely Swordfish for a long-awaited fly, but no luck getting the receiver to fire up, maybe needed to be re-bound, he thought, MOST IRREGULAR.

 A VERY great deal of dismantling required for access to the entrails.

THE CULPRIT!
One receiver battery pack not delivering any volts.
Lucky the model didn't literally "fire up".

Seems to me that this is a valid reason to have your battery accessible to charge OUT of the model, means frequent inspection possibility.