GAA16CA184

NTSB accident investigation · Dehavilland DHC 6 Twin Otter · Fentress, TX · April 9, 2016

Accident · No injuriesData collectionFinal report
Date
April 9, 2016, 17:00 local (22:00 UTC)
Place
Fentress, TX
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N122PMDehavilland DHC 6 Twin Otter
Defining event
Landing-aborted after touchdown: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report June 1, 2016
Report
Approved by Office Director
NTSB office
General Aviation Accidents
Parties
FAA
FAA report
20160409007409A
Case key
92987

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 failure to maintain directional control during the aborted landing in gusty crosswind conditions, which resulted in a runway excursion and a collision with a tree.

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: directional controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedDehavilland DHC-6 TWIN OTTER: 1 caseAll aircraft: 3,958 casesProbable cause
Wind: gustsEnvironmental issues › Conditions/weather/phenomena · Response/compensationDehavilland DHC-6 TWIN OTTER: 1 caseAll aircraft: 1,199 cases
Wind: crosswindEnvironmental issues › Conditions/weather/phenomena · Response/compensationDehavilland DHC-6 TWIN OTTER: 1 caseAll aircraft: 1,008 cases

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 pilot reported that he was landing in gusty crosswind conditions following a parachute jump flight, and that the gusty conditions had persisted for the previous 10 skydiving flights that day. The pilot further reported that during the landing roll, when the nose wheel touched down, the airplane became "unstable" and veered to the left. He reported that he applied right rudder and added power to abort the landing, but the airplane departed the runway to the left and the left wing impacted a tree. The airplane spun 180 degrees to the left and came to rest after the impact with the tree. The left wing was substantially damaged. The pilot did not report any mechanical malfunctions or failures with the airplane that would have precluded normal operation.

Factual narrative

The pilot reported that he was landing in gusty crosswind conditions following a parachute jump flight, and that the gusty conditions had persisted for the previous 10 skydiving flights that day. The pilot further reported that during the landing roll, when the nose wheel touched down, the airplane became "unstable" and veered to the left. He reported that he applied right rudder and added power to abort the landing, but the airplane departed the runway to the left and the left wing impacted a tree. The airplane spun 180 degrees to the left and came to rest after the impact with the tree. The left wing was substantially damaged. The pilot did not report any mechanical malfunctions or failures with the airplane that would have precluded normal operation.

Aircraft

Registration
N122PM
Reported as
Dehavilland DHC 6 Twin Otter (1)
Category
Airplane
Serial number
15
Built
1966
Airframe hours
53,624
Engines
Pratt & Whitney PT6-28 (L), 715 horsepower, turbo propPratt & Whitney PT6-28 (R), 715 horsepower, turbo prop
Damage
Substantial damage
Flight
Skydiving · Part 91
Operator
Dilkara Leasing LLC.
Registered owner
Dilkara Leasing LLC.
Airworthiness certificate
Standard, Normal
Last inspection
Continuous airworthiness · September 17, 2015
Departed
XS90 · Fentress, TX
Destination
XS90 · Fentress, TX
Airport
XS90 · Fentress Airpark, runway 22, 3,200 × 50 ft, asphalt
Equipment
Handheld GPS

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
Pilot
Age
45
Injuries
None
Certificate
Airline transport
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, Without waivers/limitations
Last flight review
February 13, 2016
Seat
Left
Restraint
3-point
Flight hours
6,000 total · 1,000 in this make and model · 3,000 as pilot in command · 60 in the last 90 days · 30 in the last 30 days · 8 in the last 24 hours
Role
Co-pilot
Age
34
Injuries
None
Certificate
Commercial
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, Without waivers/limitations
Seat
Right
Restraint
Lap only

Weather

Conditions
Visual (VMC) · Day
Wind
140° at 15 knots, gusting 21
Visibility
10 statute miles
Lowest ceiling
7,000 ft broken
Temperature
79 °F, dew point 54 °F
Altimeter
30.03 inHg
Turbulence
Light
Observed at
KHYI, 8 nm away

Docket · 4

The files NTSB released with the investigation on May 12, 2016, on NTSB’s docket system: statements, records, photos and specialists’ reports. 2.9 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.