What failed in a total system reacting to Fire & Smoke on the 23rd Floor?
Did the electric circuit breaker function when the air conditioner was on fire or doused?
Did the flue dampers* function preventing smoke outside from flowing back into the unit? Are there flue dampers on the flues from the stove and bathroom exhausts?
Did the smoke alarms function relaying information to the alert system downstairs?
Did the intercom function?
Did the fire alarm in the hallway outside the unit by the elevator function?
Did the elevators drop to the lobby once fire & smoke were detected?
Did the detectors above certain doors in the hallway function in response to fire?
Did the stair pressurization fans for the stairwells switch on creating positive pressure attack for ventilation and firefighting to prevent smoke from entering the hallways function?
* Definitions to remember obtained from a website:
"A damper works to regular air flow.
A flue is simply any pipe or tube that draws smoke and gases out of the home through a safe channel, like a chimney or vent. For example, if you use a fireplace, the smoke from the fire is drawn through the chimney flue and out of your home. Without this safe channel, the smoke and gases would accumulate inside your home, creating an extremely dangerous environment.
The damper, or flue damper, is a small device inside of the flue. It serves a few purposes, including regulation of air flow and protection against rain and pests. A properly functioning damper is essential to any flue."