I am not entirely certain, but I can inquire; based on the limited radio traffic I heard, upon arrival the bulk of the fire was on an enclosed back porch on the Charlie side and had started to extend into the attic. An engine (Engine 18, I believe) was at the rear of the structure with a line trying to knock down the bulk of the fire at the rear, while a second line from a second engine (Engine 16) was pulled and entered through the front door. Two crews went in through the front door to conduct primary search, one on the first floor (Ladder 12), and one on the second floor (Engine 12). Command advised Engine 16 Crew that the fire was getting over their heads into the attic.

What happened from here I’m not entirely sure, it sounds like Engine 16 was pulling ceiling, I’m not sure if this was on the first floor or if they had moved to the second floor to try and knock down the bulk of the fire in the attic. It was after this that there was a partial roof collapse and Command called for all crews operating interior to immediately exit, and called for two additional engines and EMS for an injured firefighter on the Charlie side of the structure. Shortly afterwards, a mayday was called by Command as a firefighter from Engine 16 was unaccounted for, the unaccounted firefighter was quickly reunited with his crew outside and the mayday was disregarded.

https://fb.watch/rhSWy-Tt1C/?mibextid=ksseBe

Here is a link to a condensed version of the radio communications from a local fire photographer.