Pilot Debrief

CESSNA 150K near Waycross, GA — 2009-04-27

Final reportERA09CA274
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Date
2009-04-27
Location
Waycross, GA, USA
Airport
AYS
Aircraft
CESSNA 150K
Registration
N6213G
Category
Airplane
Highest injury
None
Fatalities
0
Phase of flight
Approach

Probable cause

The student pilot's failure to maintain aircraft control during approach in gusty conditions. Contributing to the accident was the student pilot's misunderstanding of the airspeed indicator.

NTSB narrative

The student pilot reported that the en route flight conditions of his solo cross-country flight were smooth and the arrival airport traffic pattern was normal. On final approach, a strong windshear pushed the nose of the airplane down when he was approximately 100 feet above ground level, and about 300 feet from the threshold of Runway 13. He reduced power and pulled back on the control yoke. The main landing gear impacted sandy soil prior to the runway surface, followed by the nose gear, which dug into the ground and caused the airplane to nose over. The airplane received substantial damage to both wing spars, the firewall, the left elevator, and the vertical stabilizer. The pilot did not report any preimpact mechanical malfunctions. He stated that the winds were 120 degrees at 10 knots, gusting to 18 knots. The pilot reported 24 hours of total flight experience, of which 7 hours were solo flight. During a postaccident interview, the pilot discovered that he referenced the wrong scale on the airspeed indicator. The outer scale indicated airspeed in mph and the inner scale indicated airspeed in knots. He referenced the outer scale, labeled as mph, which he incorrectly thought was indicating knots.

Analysis

Primary failure mode
Human factors
First missed decision gate
Pilot could have verified airspeed scale before final approach.

NTSB coding

Evidence available

  • Photos
  • 5 docket documents
View NTSB final reportView NTSB docket

Docket documents5

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