GAA18LA062

NTSB accident investigation · Diamond Aircraft Ind DA 40 · Mesa, AZ · October 13, 2017

Accident · No injuriesLimited investigationFinal report
Date
October 13, 2017, 08:57 local (15:57 UTC)
Place
Mesa, AZ
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N965DSDiamond Aircraft Ind DA 40
Defining event
Landing-landing roll: Wildlife encounter (non-bird)
Weather
Visual (VMC) · Day
Status
Completed · report September 14, 2020
Report
Approved by Office Director
NTSB office
General Aviation Accidents
Parties
FAA
FAA report
20171013020279A
Case key
96390

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Probable cause

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

Findings · 3

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Object/animal/substance: animal(s)/bird(s)Environmental issues › Physical environment · Effect on equipmentDiamond Aircraft Ind DA 40: 2 casesAll aircraft: 358 casesProbable cause
Wing structureAircraft › Aircraft structures · Capability exceededDiamond Aircraft Ind DA 40: 1 caseAll aircraft: 48 casesProbable cause

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

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.

Factual narrative

***This report was revised on August 28, 2020. Please see the docket for this accident to view the original report.*** On October 13, 2017, at 0857 mountain standard time, a Diamond Aircraft Industries DA-40 airplane, N965DS, sustained substantial damage after landing at Falcon Field Airport (FFZ), Mesa, Arizona. The flight instructor and the pilot were not injured. The airplane was registered to and operated by CAE Oxford Aviation Academy, Phoenix, Arizona, as a Title 14 Code of Federal Regulations Part 91 employment evaluation flight. Visual meteorological conditions prevailed, and the flight was not operated on a flight plan. The local flight originated from FFZ at 0750. The previous evening, October 12, 2017, about 2140, 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 conducted by the pilot did not reveal any damage and she was instructed to fly the airplane back to FFZ. Upon landing, a flight school mechanic examined the airplane and told the student he saw hair in the gear. The airplane remained in service. The following morning, October 13, 2017, the airplane was dispatched for a local flight. The dispatcher informed the flight instructor of the coyote strike the previous evening. The flight instructor and pilot receiving instruction reported completing a preflight inspection and no anomalies were observed. The employment evaluation flight consisted of instrument approaches and touch-and-go landings. After the final landing at FFZ, the pilots noticed an abnormal noise emanating from the right main landing gear area. Flight school maintenance personnel conducted a more detailed examination, which revealed that the internal composite wing structure where the landing gear attaches was fractured. The flight school updated their event and discrepancy reporting, and airplane return to service procedures in an effort to prevent any possibility of dispatching an unairworthy airplane in the future.

Aircraft

Registration
N965DS
Reported as
Diamond Aircraft Ind DA 40 (UNDESIGNAT)
Category
Airplane
Serial number
40.1035
Built
2009
Airframe hours
8,086.4
Engine
Lycoming IO-360, 160 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Operator
Cae Oxford Aviation Academy Phoenix Inc
Registered owner
Cae Oxford Aviation Academy Phoenix Inc
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · October 6, 2017
Departed
FFZ · Mesa, AZ
Destination
KFFZ · Mesa, CA
Airport
IWA · Phoenix-Mesa Gateway, runway 30R, 9,300 × 150 ft, concrete
Equipment
Electronic primary flight display, Stall warning system, Auto-pilot, Data recorder, Electronic multifunction display

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew · 2

As NTSB recorded them. NTSB leaves out names.

Role
Check pilot
Age
61
Injuries
None
Certificates
Airline transport, Flight instructor
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, With waivers/limitations
Last flight review
February 26, 2018
Seat
Right
Restraint
3-point
Flight hours
3,650 total · 1,300 in this make and model · 3,350 as pilot in command · 112 in the last 90 days · 31 in the last 30 days · 7 in the last 24 hours
Role
Flight instructor
Age
25
Injuries
None
Certificates
Commercial, Flight instructor
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 1
Seat
Left
Flight hours
976 total · 866 as pilot in command · 218 in the last 90 days · 85 in the last 30 days · 6 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
30° at 6 knots
Visibility
40 statute miles
Lowest ceiling
None
Temperature
75 °F, dew point 30 °F
Altimeter
30.00 inHg
Observed at
KFFZ

Docket · 6

The files NTSB released with the investigation on September 25, 2019, on NTSB’s docket system: statements, records, photos and specialists’ reports. 8.0 MB in all.

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.