It is my belief that properly implemented PPA used for fire attack is the safest, quickest, most effective way to provide initial ventilation for single-family residential buildings. I base this on my study of the subject and my experience as a ladder company firefighter, lieutenant, and captain. I hear many people talking about PPA and how it can, or cannot be used, it’s effectiveness, and safety. I, personally, have never experienced a negative outcome with properly implemented PPA. I have never seen a video or read a case study of a negative outcome with properly implemented PPA. I often hear second-hand accounts or examples of potential negative outcomes but have yet to see the evidence of a documented poor outcome or a negative impact of properly implemented PPA from empirical research or an incident scene.
I do not think going to the roof is inherently dangerous nor would I shy away from assigning crews to vertical ventilation when appropriate. I am not looking for a vertical, horizontal, versus PPA discussion. What I am looking for is EVIDENCE to support claims of ineffective or unsafe PPA when done PROPERLY.
Please do not submit video links of situations where improper PPA is used. I’ve seen those. So has everyone else. I am talking about well-trained firefighters using the tactic properly.
For the purposes of this question “Properly Implemented” will be defined as my understanding of the procedures and contra-indications outlined by Kris Garcia and Reinhard Kauffman in their book “Positive Pressure Attack for Ventilation and Firefighting”, Fire Engineering Books/Pennwell , 2006
1. Appropriate size exit point established in acceptable location (in or near the fire room)
2. No victim(s) in the exit point
3. Fan at hose team entry door
4. Hose team ready
5. Blower turned into door before firefighter entry
6. Backdraft conditions NOT present
Can you provide a verifiable example of a fire where a “Properly Implemented” PPA attack was used and there was a negative outcome?