Lost power on hatch day

[Kbaldwin23]

Power was out for about 3.5 hours and incubator temp got down to 77.. it is day 21. What are the chances I just lost this batch? Should I be hopeful? Power is back on now and they are warming up but I am worried it is too late.

 

[BirdsBeesTrees]

Sorry this happened to you.
They might be fine just give them a little extra time. I hope they didn't get too cold.

 

[picklestheduck]

Hoping you didn’t loose them! I really am no expert at all, but I’ve heard that it’s worse if it happens earlier on than that late into incubation, but again I don’t really know. Hoping they still hatch well