The NTSB investigation of the Asiana 214 crash will of course include survivability factors and ARFF response. However, I would expect that the final report will be somewhat limited with respect to the ARFF response. Nor is the report likely to contradict the investigative findings of the San Mateo county coroner or district attorneys office. The main focus of the investigation will rightfully be centered on what led to the crash. After all, without the crash, none of the rest of it would be at issue. I would be very surprised if recommendations regarding fire department training and policy aren't included though.
The DA has stated that no charges are to be filed against anyone because their investigation revealed that there is no evidence that any criminal act was committed. The coroner has ruled the death of the girl run over to be accidental. The girl's parents are suing the city of San Fransisco. In a nutshell, the case of the girl's death will be contested in civil court.
BTW, the use of the word "he" in describing the gender of the driver of the ARFF vehicle in question appears to be in error. Among the multitude of news reports regarding this story, there is an
article by the
San Mateo County Times/San Jose Mercury News which summarizes the situation as local officials see it as of last week.