A 47th Fighter Squadron P-51D Mustang, number 172, receives either engine maintenance or an engine replacement in an outdoor setting on Iwo Jima with another Mustang coming in for a landing in the background. This looks as if this may be a major periodic overall maintenance as engine work being done, the wing root fairing is removed, the machine guns are removed, the canopy is removed, and it appears that work is being done on the radiator as well.

Early on, all maintenance and repairs were done outdoors. The construction of maintenance hangers would come later. The single antenna on this Mustang indicates that this maintenance was done shortly after 47th Fighter Squadron arrived on Iwo Jima as the twin Uncle Dog antennae have yet to be installed.

Please also note that the right tire has an oval tread pattern and the left tire has a diamond tread pattern. Different tread patterns were a fairly common occurrence, so important to check your photo references.

The official USAAF caption to this photo reads: A mobile repair unit of a 7th Fighter Command Service Group repairs a North American P-51 damaged in a landing on the rugged Iwo Jima airstrip. Soft spots, cross winds and roving clouds of volcanic dust make landings on Iwo Jima unusually hazardous. In the background another P-51 fighter comes in for a landing.