DaveReidUK
None other than James Reason (and others whose day-to-day work involves aviation safety) would disagree with your first sentence, if by stating that, you are suggesting that these occurrences don't warrant an immediate look at the company's safety culture. The nature of any mitigating "action(s) to be taken" would arise from any common contributors identified in the analysis of each event, i.e. training (maintenance and ops) safety culture, procedures (maintenance and ops), organisational issues, etc.
The notion that several seemingly unrelated events is cause for concern, and therefore a review of some sort should take place, is incorporated into ICAO's safety oversight guidance material, and into the specific audit / surveillance criteria for many civil aviation regulators (CASA Australia, Transport Canada as examples).
“An insight into the safety health of an organisation can be gained by an examination of its safety history and of the environment within which it operates. A series of apparently unrelated safety events may be regarded as tokens of an underlying systemic failure of the overall safety system.” (see Reason, Human Error (1990))
Last edited by Sam Asama; 18th Oct 2021 at 04:58.