Flexible fibreoptic bronchoscopy with fine needle aspiration is a common procedure, useful in the diagnosis and assessment of lung disease. There are known complications associated with such a procedure that are well documented in the literature. However, there are only four cases of air embolus following fine needle aspiration during bronchoscopy described in the literature. Due to the varying clinical manifestations of the complication, it remains underrecognized by the clinical community and was not described at all by the most recent British Thoracic society 2013 statement on bronchoscopy. The following two case reports describe incidences where air emboli ensued following bronchoscopy with fine needle aspiration. They examine four notable, and arguably avoidable, risk factors that can exacerbate an air embolus and offer guidance on both imaging and treatment for any physician faced with a corresponding clinical picture.