A. Any member shall be examined by surgeons or physicians as provided in Section 2.92.040, upon application of the chief of the fire department, or upon the application of the member or a person acting in his behalf, stating that the member is physically or mentally incapacitated for the performance of duty and ought to be retired, or the board upon its own motion may order such examination, all provided he has rendered ten or more years of service or such disability is claimed to result from injury or illness incurred in the performance of duty.

B. If such medical examination and other available evidence shows to the satisfaction of the board that said member is physically or mentally incapacitated for the performance of duty and ought to be retired and, if he has not had ten or more years of service, that the disability is the result of injury or illness incurred in the performance of duty, then the retirement board shall retire the member for disability forthwith. (Prior code § 5.38.140)