Aim This study evaluates the implementation rate and strength of the recommendations developed in all root cause analyses (RCAs) performed following serious clinical incidents involving children that have resulted in permanent harm or death in Queensland public hospitals over a 3‐year period. Methods Severity assessment classification 1 events were identified from a Queensland Paediatric Quality Council database of paediatric clinical incidents that occurred in Queensland between 1 January 2012 and 31 December 2014. There were 150 recommendations extracted from RCAs pertaining to the 42 serious adverse events involving paediatric patients. Results Of the recommendations, 82% were implemented; 33% of recommendations were classified as stronger, 33% as intermediate and 34% weaker in terms of their potential to improve patient safety. Conclusions This study describes the implementation of recommendations and classifies them in terms of potential to prevent patient harm and save lives. Future research is needed to determine if the RCA process does indeed prevent harm.