GAA19CA527

NTSB accident investigation · Diamond DA20 · Convington, TN · August 31, 2019

Accident · No injuriesData collectionFinal report
Date
August 31, 2019, 18:00 local (23:00 UTC)
Place
Convington, TN
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N98BZDiamond DA20
Defining event
Landing: Aerodynamic stall/spin
Weather
Visual (VMC) · Day
Status
Completed · report March 17, 2020
Report
Approved by Office Director
NTSB office
General Aviation Accidents
Parties
FAA
FAA report
20190831014719A
Case key
100202

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

The student pilot's improper pitch attitude during the takeoff climb, and the flight instructor's delayed remedial action which resulted in an aerodynamic stall and ground impact.

Findings · 4

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.

Performance/control parameters: pitch controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedDiamond Aircraft Ind DA20-C1: 3 casesAll aircraft: 526 casesProbable cause
Performance/control parameters: angle of attackAircraft › Aircraft oper/perf/capability · Not attained/maintainedDiamond Aircraft Ind DA20-C1: 3 casesAll aircraft: 990 casesProbable cause
Use of equip/info: aircraft controlPersonnel issues › Task performance · Student/instructed pilotDiamond Aircraft Ind DA20-C1: 37 casesAll aircraft: 9,295 casesProbable cause
Use of equip/info: aircraft controlPersonnel issues › Task performance · Instructor/check pilotDiamond Aircraft Ind DA20-C1: 37 casesAll aircraft: 9,295 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

The flight instructor reported that he instructed his student to perform a soft-field takeoff. During the takeoff roll, the instructor had his hands on the flight controls while the student pilot released the yoke back pressure and the airplane began to climb, but the airplane's nose was too high. The flight instructor pushed forward on the control stick to correct the nose high attitude, "and the plane started to pull to the right." The flight instructor does not know whether the stall warning horn sounded, as the airplane flew over the right edge of the runway, but he does recall being on the flight controls when the airplane descended and impacted the grass safety area on the right side of the runway. The airplane sustained substantial damage to the lower fuselage composite structure. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.

Factual narrative

The flight instructor reported that he instructed his student to perform a soft-field takeoff. During the takeoff roll, the instructor had his hands on the flight controls while the student pilot released the yoke back pressure and the airplane began to climb, but the airplane's nose was too high. The flight instructor pushed forward on the control stick to correct the nose high attitude, "and the plane started to pull to the right." The flight instructor does not know whether the stall warning horn sounded, as the airplane flew over the right edge of the runway, but he does recall being on the flight controls when the airplane descended and impacted the grass safety area on the right side of the runway. The airplane sustained substantial damage to the lower fuselage composite structure. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.

Aircraft

Registration
N98BZ
Reported as
Diamond DA20 (C1)
Category
Airplane
Serial number
C0689
Built
2016
Airframe hours
760.2
Engine
Continental IO-240-B, 125 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Operator
Cti Aircraft Leasing Llc, doing business as Flight School
Registered owner
Cti Aircraft Leasing Llc
Airworthiness certificate
Standard, Utility
Last inspection
Annual · August 7, 2019
Departed
M04 · Convington, TN
Destination
NQA · Millington, TN
Airport
M04 · Covington Muni, runway 19, 5,004 × 100 ft, asphalt
Equipment
Onboard weather, Electronic primary flight display, Electronic multifunction display, ADS-B, Stall warning system

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
Flight instructor
Age
24
Injuries
None
Certificate
Flight instructor
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, With waivers/limitations
Last flight review
May 24, 2019
Seat
Right
Restraint
4-point
Flight hours
281 total · 44 in this make and model · 203 as pilot in command · 44 in the last 90 days · 25 in the last 30 days
Role
Student pilot
Age
27
Injuries
None
Certificate
Student
Medical
Class 1
Seat
Left
Restraint
4-point
Flight hours
38 total · 38 in this make and model · 35 in the last 90 days · 18 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
None
Temperature
64 °F, dew point 63 °F
Altimeter
30.05 inHg
Observed at
KM04

Docket · 2

The files NTSB released with the investigation on January 3, 2020, on NTSB’s docket system: statements, records, photos and specialists’ reports. 3.8 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.