A personal digital assistant for supporting inspection of at least one device disposed in an inspection target area includes: an abnormality acquisition unit configured to acquire information about an abnormality in the at least one device; a guidance information storage unit configured to store guidance information which at least includes at least one response procedure for each abnormal event in the at least one device and information about response capability required to execute the at least one response procedure; and a display unit configured to refer to the guidance information stored in the guidance information storage unit, and display the guidance information for responding to an abnormal device which is the device where the abnormality is acquired by the abnormality acquisition unit.