What happened
On July 10, 2015, a Neiva EMB-202, registration PT-ULU, was performing agricultural spraying operations at Fazenda Ouro Branco in Chapada dos Guimarães, Mato Grosso. While executing a left-hand repositioning turn to begin a new application pass, the pilot experienced significant solar glare. This glare obscured the pilot's vision, leading to a momentary loss of situational awareness regarding the aircraft's altitude and descent rate.
As the pilot attempted to recover, the aircraft struck a cotton plantation at a high speed and low angle. The aircraft slid approximately 100 meters across the ground before striking a contour line and coming to a complete stop. The pilot was uninjured, but the aircraft sustained substantial damage.
The investigation
The CENIPA investigation established that while meteorological conditions were suitable for flight, the flight path used for the application coincided with a sun position that caused blinding glare during the turn. The investigation examined the pilot's credentials, finding that the pilot held valid medical and technical certifications and possessed experience in this type of operation. The aircraft was also found to be airworthy, with all maintenance records up to date and within weight and balance limits.
Findings
- The collision occurred at a high velocity and low angle.
- The pilot's vision was compromised by the sun's position relative to the flight trajectory.
- Inadequate flight planning regarding the sun's position during the repositioning maneuver was a primary factor.
- Environmental influences contributed to the loss of control.
Safety action
It is recommended that the National Civil Aviation Agency (ANAC) work with agricultural operators to reinforce the necessity of accounting for solar position during the planning of aerial application operations.