Monday, November 11, 2019

Landing Area Overshoot: Diamond DA40, N420NG; accident occurred July 04, 2019 at Tavernaero Park Airport (FA81), Monroe County, Florida

Aerial view of damaged right wing. 

Additional Participating Entity:
Federal Aviation Administration / Flight Standards District Office; Miramar, Florida

Aviation Accident Final Report - National Transportation Safety Board:

Investigation Docket - National Transportation Safety Board:

Location: Tavernier, FL

Accident Number: GAA19CA431
Date & Time: 07/04/2019, 1230 EDT
Registration: N420NG
Aircraft: DIAMOND DA40
Aircraft Damage: Substantial
Defining Event: Landing area overshoot
Injuries: 2 None
Flight Conducted Under: Part 91: General Aviation - Personal 


The pilot reported that, during landing on a 2,175-ft-long grass runway, the airplane ballooned. He pushed the nose down, but the airplane floated and touched down about midfield. He added that he "briefly touched the brakes" but decided to go around. He added that he raised the flaps to the takeoff position and added full power, but "the delay of power in the diesel and high temperature did not allow for enough climb performance." The left wing aerodynamically stalled, and the airplane impacted vegetation.

The airplane sustained substantial damage to both wings and the fuselage.

The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.

The pilot reported that the wind was light and variable, the temperature was 32°C (90°F), and the density altitude was 2,000 ft.

Probable Cause and Findings

The National Transportation Safety Board determines the probable cause(s) of this accident to be:
The pilot's delayed decision to go around in high-temperature and high-density altitude conditions and his exceedance of the airplane's critical angle of attack, which resulted in an aerodynamic stall.


Angle of attack - Capability exceeded (Cause)

Personnel issues
Aircraft control - Pilot (Cause)
Delayed action - Pilot (Cause)

Environmental issues
High density altitude - Effect on operation
High temperature - Effect on operation

Factual Information

History of Flight

Abnormal runway contact
Landing area overshoot (Defining event)

Approach-VFR go-around
Aerodynamic stall/spin
Collision during takeoff/land

Pilot Information

Certificate: Private
Age: 35, Male
Airplane Rating(s): Single-engine Land
Seat Occupied: Left
Other Aircraft Rating(s): None
Restraint Used:
Instrument Rating(s): None
Second Pilot Present: No
Instructor Rating(s): None
Toxicology Performed: No
Medical Certification: BasicMed With Waivers/Limitations
Last FAA Medical Exam: 04/30/2018
Occupational Pilot: No
Last Flight Review or Equivalent: 05/11/2018
Flight Time:  (Estimated) 127 hours (Total, all aircraft), 21 hours (Total, this make and model), 127 hours (Pilot In Command, all aircraft), 21 hours (Last 90 days, all aircraft)

Aircraft and Owner/Operator Information

Aircraft Make: DIAMOND
Registration: N420NG
Model/Series: DA40 NG
Aircraft Category: Airplane
Year of Manufacture: 2018
Amateur Built: No
Airworthiness Certificate: Normal
Serial Number: 40.NC024
Landing Gear Type: Tricycle
Seats: 4
Date/Type of Last Inspection: 10/23/2018,
Certified Max Gross Wt.: 2888 lbs
Time Since Last Inspection:
Engines: 1 Reciprocating
Airframe Total Time: 88 Hours at time of accident
Engine Manufacturer: Austro
ELT: C126 installed, activated
Engine Model/Series: AE300
Registered Owner: Wherever Aircraft Llc
Rated Power: 168 hp
Operator: On file
Operating Certificate(s) Held: None

Meteorological Information and Flight Plan

Conditions at Accident Site: Visual Conditions
Condition of Light: Day
Observation Facility, Elevation: KHST, 7 ft msl
Distance from Accident Site: 30 Nautical Miles
Observation Time: 1556 UTC
Direction from Accident Site: 16°
Lowest Cloud Condition: Few / 3100 ft agl
Visibility:  10 Miles
Lowest Ceiling:
Visibility (RVR):
Wind Speed/Gusts: 8 knots /
Turbulence Type Forecast/Actual: None / None
Wind Direction: 90°
Turbulence Severity Forecast/Actual: N/A / N/A
Altimeter Setting: 30.02 inches Hg
Temperature/Dew Point: 32°C / 24°C
Precipitation and Obscuration: No Obscuration; No Precipitation
Departure Point: Boca Raton, FL (BCT)
Type of Flight Plan Filed: None
Destination: Tavernier, FL (FA81)
Type of Clearance: VFR
Departure Time: 1030 EDT
Type of Airspace: Class G

Airport Information

Runway Surface Type: Grass/turf
Airport Elevation: 10 ft
Runway Surface Condition: Dry
Runway Used: 26
IFR Approach: None
Runway Length/Width: 2175 ft / 95 ft
VFR Approach/Landing: Full Stop; Traffic Pattern

Wreckage and Impact Information

Crew Injuries: 1 None
Aircraft Damage: Substantial
Passenger Injuries: 1 None
Aircraft Fire: None
Ground Injuries: N/A
Aircraft Explosion: None
Total Injuries: 2 None
Latitude, Longitude: 25.005000, -80.532222 (est)

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