The ATR-42 taxied from the parking area to runway 26L at KSUS Spirit of St Louis Airport in a period of 60 minutes, covering a ground distance of 8 nm.

During the departure roll on runway 26L the aircraft used 690 m of runway, representing 32 % of the available length, and lifted off at 119 kt; ambient temperature was 31 °C with a wind of 9 kt from 230°, giving a 4 kt cross-wind component and an 8 kt head-wind component.

The initial climb began overhead KSUS, climbing from 1,443 ft asl to 10,873 ft asl, an altitude gain of 9,430 ft achieved in 4 minutes while traversing 10 nm.

A level cruise segment commenced 2 nm east of Weldon Spring and lasted 3 minutes, during which the aircraft covered 9 nm.

A subsequent climb started 1 nm south of Chesterfield, raising the aircraft from 9,899 ft asl to 11,069 ft asl, a gain of 1,170 ft in 2 minutes over 5 nm.

The first descent of the flight began 2 nm west of Westwood, descending from 11,101 ft asl to 10,434 ft asl, a loss of 666 ft in 2 minutes while covering 5 nm.

A second climb was initiated 1 nm east of Chesterfield, increasing altitude from 10,472 ft asl to 11,768 ft asl, an ascent of 1,296 ft in 2 minutes across 2 nm.

The next descent started 1 nm east of Clarkson Valley, dropping from 11,768 ft asl to 5,122 ft asl, a decrease of 6,646 ft in 2 minutes and covering 4 nm.

A further climb began 1 nm south-east of Ellisville, climbing from 5,194 ft asl to 6,238 ft asl, a gain of 1,044 ft in 2 minutes over 3 nm.

A prolonged cruise segment started 1 nm west of Ellisville, lasting 21 minutes and extending 67 nm.

Descent number four originated 7 nm east of Holts Summit, descending from 6,409 ft asl to 5,800 ft asl, a loss of 610 ft in 2 minutes while covering 4 nm.

Climb number five commenced 2 nm east of Holts Summit, raising the aircraft from 5,703 ft asl to 6,741 ft asl, an increase of 1,038 ft in 2 minutes across 5 nm.

The final descent of the flight began 2 nm west of Holts Summit, dropping from 6,577 ft asl to 2,001 ft asl, a loss of 4,576 ft in 6 minutes and covering 12 nm.

The aircraft entered the final approach to runway 02 at KCOU Columbia Regional Airport from the south, on a heading of 21.0° at 4 nm and 1,113 ft agl.

Landing on runway 02 was performed with a runway length of 1,985 m; the threshold height at 122 ft agl was noted as excessively over target and the threshold speed was slightly above target at 106 kt. Touchdown occurred 516 m beyond the touchdown zone at a speed of 86 kt, with a touchdown rate of minus 296 fpm and a runway touchdown position offset 17.7 m from the centreline. Local conditions were 29 °C, wind 6 kt from 50°, providing a 3 kt cross-wind and a 5 kt head-wind component.

The total landing roll measured 1,206 m, representing 61 % of the runway, and the rollout alignment was misaligned by 16.2 m from the centreline.

After exiting the runway, the aircraft taxied to the parking area in 4 minutes, covering less than 1 nm.

In summary, the flight covered a total of 139 nm, required 63 minutes of elapsed time, and consumed 672 kg of fuel.