GAA18CA224

NTSB accident investigation · Mooney M20R · San Antonio, TX · April 16, 2018

Accident · No injuriesData collectionFinal report
Date
April 16, 2018, 14:10 local (19:10 UTC)
Place
San Antonio, TX
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N6868Mooney M20R
Defining event
Landing-landing roll: Runway excursion
Weather
Visual (VMC) · Day
Status
Completed · report October 24, 2018
Report
Approved by Office Director
NTSB office
General Aviation Accidents
Parties
FAA
FAA report
20180416003749A
Case key
97085

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

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Probable cause

The pilot’s landing long in tailwind conditions with insufficient runway remaining to stop the airplane.

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.

Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotMooney M20R: 9 casesAll aircraft: 9,295 casesProbable cause
Terrain: sloped/uneven terrainEnvironmental issues › Physical environment · Effect on equipmentMooney M20R: 1 caseAll aircraft: 270 casesProbable cause
Wind: tailwindEnvironmental issues › Conditions/weather/phenomena · Effect on equipmentMooney M20R: 1 caseAll aircraft: 594 casesProbable cause
Wind: gustsEnvironmental issues › Conditions/weather/phenomena · Effect on operationMooney M20R: 3 casesAll aircraft: 1,199 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

According to the pilot, the airplane encountered a tailwind gust during landing. He reported that he frequented the airport and that it was common practice to land with a tailwind because of the preferred up-sloping runway. He asserted that he underestimated the significance of the wind conditions and that, when the airplane touched down, it was too late to abort the landing. The ground speed was too fast, and the airplane exited the departure end of the runway and collided with an embankment. The airplane sustained substantial damage to the left wing. The METAR at the nearest airport, 2 nautical miles from the accident site, reported that, about the time of the accident, the wind was from 160° at 17 knots, gusting to 24 knots. The pilot landed on runway 30. The pilot reported that there were no mechanical malfunctions or failures with the airplane that would have precluded normal operation.

Factual narrative

According to the pilot, the airplane encountered a tailwind gust during landing. He reported that he frequented the airport and it was common practice to land with a tailwind because of the preferred upsloping runway. He asserted that he underestimated the significance of the wind conditions, and that when the airplane touched down, it was too late to abort the landing. The airplane's ground speed was too fast, and the airplane exited the departure end of the runway and collided with an embankment. The airplane sustained substantial damage to the left-wing. The METAR at the nearest airport was 2 nautical miles from the accident site and reported that about the time of the accident the wind was from 160° at 17 knots and gusting to 24 knots. The pilot landed on runway 30. The pilot reported that there were no mechanical malfunctions or failures with the airplane that would have precluded normal operation.

Aircraft

Registration
N6868
Reported as
Mooney M20R (NO SERIES)
Category
Airplane
Serial number
29-0385
Built
2005
Airframe hours
390
Engine
Cont Motor IO-550-G7B, 280 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · July 21, 2017
Departed
LFK · Lufkin, TX
Destination
T94 · San Antonio, TX
Airport
T94 · Twin-Oaks, runway 30, 2,225 × 30 ft, asphalt
Equipment
Electronic primary flight display, Onboard weather, Stall warning system, ADS-B, Auto-pilot, Electronic flight bag or handheld device, 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

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
78
Injuries
None
Certificates
Commercial, Flight instructor, Airline transport
Airplane ratings
Single-engine land, Single-engine sea, Multi-engine land
Instrument ratings
Airplane
Medical
Class 3, With waivers/limitations
Last flight review
March 6, 2018
Seat
Left
Restraint
3-point
Flight hours
19,000 total · 40 in this make and model · 19,000 as pilot in command · 30 in the last 90 days · 10 in the last 30 days · 5 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
160° at 17 knots, gusting 24
Visibility
10 statute miles
Lowest ceiling
None
Temperature
82 °F, dew point 46 °F
Altimeter
30.13 inHg
Observed at
KSAT, 2 nm away

Docket · 2

The files NTSB released with the investigation on September 4, 2018, on NTSB’s docket system: statements, records, photos and specialists’ reports. 677 KB 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.