GAA16CA395

NTSB accident investigation · Engineering & Research 415 · Collinsville, OK · July 23, 2016

Accident · No injuriesData collectionFinal report
Date
July 23, 2016, 12:00 local (17:00 UTC)
Place
Collinsville, OK
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N2377HEngineering & Research 415
Defining event
Takeoff: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report September 12, 2016
Report
Approved by Office Director
NTSB office
General Aviation Accidents
Parties
FAA
FAA report
20160723013289A
Case key
93697

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 takeoff in a high density altitude condition, which resulted in a runway excursion and impact with a tree.

Findings · 5

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/maintainedEngineering & Research 415-D: 1 caseAll aircraft: 3,958 casesProbable cause
Object/animal/substance: tree(s)Environmental issues › Physical environment · Contributed to outcomeEngineering & Research 415-D: 1 caseAll aircraft: 933 cases
Temp/humidity/pressure: high density altitudeEnvironmental issues › Conditions/weather/phenomena · Decision related to conditionEngineering & Research 415-D: 1 caseAll aircraft: 278 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 during the takeoff rotation, the nose came up and the left wing rose, but as he looked to the right wing it appeared low and "the next thing he knew" the airplane was going about 45 degrees across the runway to the right, headed for a tree. The pilot further reported that he reduced throttle and applied the brakes while turning left to no avail. The airplane subsequently impacted a tree and spun clockwise about 90 degrees sustaining substantial damage to the right wing and aft fuselage. The pilot reported that there were no pre impact mechanical failures or malfunctions with the airframe or engine that would have precluded normal operation. The pilot recommended that due to the density altitude and low powered airplane it may not have been a good condition for departure.

Factual narrative

The pilot reported that during the takeoff rotation, the nose came up and the left wing rose, but as he looked to the right wing it appeared low and "the next thing he knew" the airplane was going about 45 degrees across the runway to the right, headed for a tree. The pilot further reported that he reduced throttle and applied the brakes while turning left to no avail. The airplane subsequently impacted a tree and spun clockwise about 90 degrees sustaining substantial damage to the right wing and aft fuselage. The pilot reported that there were no pre impact mechanical failures or malfunctions with the airframe or engine that would have precluded normal operation. The pilot recommended that due to the density altitude and low powered airplane it may not have been a good condition for departure.

Aircraft

Registration
N2377H
Reported as
Engineering & Research 415 (D)
Category
Airplane
Serial number
3002
Built
1946
Airframe hours
2,606.3
Engine
Cont Motor C85-12, 85 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · December 3, 2015
Departed
OK94 · Collinsville, OK
Destination
OK94 · Collinsville, OK
Airport
OK94 · Sandridge Airpark Inc, runway 17, 2,545 × 110 ft, grass/turf
Equipment
None

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
71
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, With waivers/limitations
Last flight review
October 28, 2015
Seat
Left
Restraint
Lap only
Flight hours
1,335 total · 49 in this make and model · 1,335 as pilot in command · 22 in the last 90 days · 11 in the last 30 days · 0 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
210° at 8 knots
Visibility
10 statute miles
Temperature
99 °F, dew point 68 °F
Altimeter
29.92 inHg
Observed at
KTUL, 10 nm away

Docket · 2

The files NTSB released with the investigation on August 30, 2016, on NTSB’s docket system: statements, records, photos and specialists’ reports. 2.2 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.