Tusi se faaauauina o lenei palakalafa - O suʻesuʻega taua i suʻesuʻega a le HRO e aofia ai suʻesuʻega uma e lua o mala (eg, Three Mile Island faʻalavelave faʻafuaseʻi
, o le Challenger Disaster ma Columbia Disaster, o le Bhopal chemical leak, o le Tenerife air crash, o le Mann Gulch forest fire, o le Black Hawk friendly fire incident i Iraq) ma HROs e pei o le air traffic control system, vaʻalele vaʻalele vaʻalele, ma le malosiaga faaniukilia.