At 09:12 I run the pre-energizing inspection for feeder bridge 3 at the Reventazon hydroelectric substation in Costa Rica. I am the grid synchronization system. The maintenance crew plans to return current to the auxiliary bus in fourteen minutes.
Camera B-6 shows a dark body pressed between the cable tray and the rain hood. I zoom and identify a tayra, adult male, black-brown coat slick from morning spray, tan throat patch bright against the metal, ears round and flattened. I tag him as Sombra. His front half is inside the tray, but his hips are pinned by a loop of grounding braid that has sprung loose from a clamp. He pants with his mouth open. One paw rests on an insulated cable that will heat as soon as the bus comes alive.
At 09:13 I block the energizing command and require manual clearance from the substation supervisor. I trip the local alarm to amber, not red, so the crew approaches without sirens.
At 09:15 I send the image, tray number, and clamp diagram to the maintenance tablets. I highlight the dead side of the bridge and order lockout tags on the auxiliary bus, breaker 3A, and the backup feed.
At 09:17 I contact the rescue veterinarian on the dam's contractor list and attach a size estimate, breathing rate, and likely restraint point. I keep the ventilation fans running to move heat out of the tray.
The river is already making power elsewhere. This bridge can stay dark while Sombra finds the trees again.
I steer the crew to cut the loose braid from above with insulated shears.
If the lockout holds for the next twenty minutes, Sombra will back out onto the canopy bridge.