Pilot Debrief

DIAMOND AIRCRAFT IND INC DA 40 near Mesa, AZ — 2017-10-13

Final reportGAA18LA062
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Date
2017-10-13
Location
Mesa, AZ, USA
Airport
IWA
Aircraft
DIAMOND AIRCRAFT IND INC DA 40
Registration
N965DS
Category
Airplane
Highest injury
None
Fatalities
0
Phase of flight
Landing

Probable cause

A coyote strike and the subsequent operation of the airplane, which led to internal composite wing structure damage.

NTSB narrative

A student pilot was conducting a solo flight when the right main landing gear struck a coyote during the landing flare. The pilot contacted flight school management to inform them of the event. A visual examination that the pilot conducted did not reveal any damage, and she was instructed to fly the airplane back to the home airport. Upon landing, a flight school mechanic examined the airplane and reported seeing hair on the landing gear; the airplane remained in service. The next morning, the airplane was dispatched for a local employment evaluation flight. The flight instructor and pilot receiving instruction completed a preflight inspection, and no anomalies were observed. The employment evaluation flight departed and consisted of instrument approaches and touch-and-go landings. After the final landing, the pilots heard an abnormal noise coming from the right main landing gear area. Postaccident examination revealed that the internal composite wing structure where the landing gear attaches was fractured. Based on the available information, the damage to the wing structure was likely a result of the wildlife strike, which damaged the landing gear mount, and the subsequent operation of the airplane, which likely aggravated the damage.

Analysis

Primary failure mode
Mechanical failure
First missed decision gate
Inspection after coyote strike could have revealed damage before next flight.

NTSB coding

Evidence available

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

Docket documents6

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