NTSB Identification: WPR13LA004B
14 CFR Part 91: General Aviation
Accident occurred Friday, October 05, 2012 in Chandler, AZ
Probable Cause Approval Date: 09/30/2013
Aircraft: PIPER PA-28R-201, registration: N4184M
Injuries: 4 Uninjured.

NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

During instructional flights with a flight instructor and a student pilot on board each airplane, a Piper Warrior and a Piper Arrow collided in midair during day visual meteorological conditions. The instructors reported that their students were simulating instrument conditions and were wearing view-limiting devices as they practiced instrument maneuvers. Both flight instructors reported that they saw the other airplane only moments before the collision and were not aware of other aircraft in the area.

Neither airplane was using flight following services nor did they have any radar guidance during the flight. A review of recorded radar data for the area depicted two targets on a southwesterly heading, one ahead of the other. The targets were spaced about 2 miles apart and both were at 4,000 feet mean sea level. The rear target, the Arrow, changed its southwesterly heading to a westerly heading, and shortly after, the target identified as the Warrior started a wide right turn. Both airplanes were flying toward each other when the Warrior’s right wing and the Arrow’s left wing collided.

After the collision, both airplanes subsequently made uneventful landings.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

The failure of both flight instructors to see and avoid the other airplane while providing instrument flight training, which resulted in a midair collision.

Full narrative available

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