Psoriasis: The most common skin disorder that also affects the joints, including the knees, is psoriasis. Although certainly not all patients with psoriasis will develop joint problems, psoriatic arthritis may cause knee pain and swelling. ...Read more.
Definition of accident. 1  1a : an unforeseen and unplanned event or circumstance Their meeting was an accident.b : lack of intention or necessity : chance They met by accident rather than by design.
Note that the critical distinction in these types of. accidents is the fact that the aircraft is flyable and under. control of the crew. Typically, mechanical or equipment. malfunctions are not considered the immediate cause of the. accident; rather the accidentÃs probable and immediate.