What happened
The pilot had originally filed an instrument flight rules (IFR) flight plan but subsequently decided to cancel it. Following this decision, he attempted to continue the flight under visual flight rules (VFR). The operation took place at a relatively low altitude over mountainous terrain during nighttime conditions. Weather reports indicated the presence of low scattered clouds.
During the flight, the pilot reported observing a large lighted area and identified it as downtown El Paso. However, this identification was incorrect. The lights actually belonged to Coronado Hills, a residential development located on the west side of Franklin Mountain. This location was approximately 4 miles north of the south end of the mountain.
The pilot's error in navigation appears linked to the transition from instrument meteorological conditions (IMC) to visual meteorological conditions (VMC). Having just descended from IFR conditions into VFR conditions likely contributed to his spatial disorientation or misjudgment of position. His familiarity with the area, combined with his specific method of flight operation as described by a professional acquaintance, probably created a false sense of security. This overconfidence in his personal ability to navigate without proper reference points led to the misidentification of the landmark.