GAA17CA066

NTSB accident investigation · Luscombe 8 · Conway, AR · November 12, 2016

Accident · No injuriesData collectionFinal report
Date
November 12, 2016, 09:25 local (14:25 UTC)
Place
Conway, AR
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N2604KLuscombe 8
Defining event
Landing-landing roll: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report July 5, 2017
Report
Approved by Office Director
NTSB office
General Aviation Accidents
Parties
FAA
FAA report
20161112018449A
Case key
94375

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 of the airplane during the landing roll, which resulted in a runway excursion and ground loop.

Findings · 2

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/maintainedLuscombe 8E: 12 casesAll aircraft: 3,958 casesProbable cause
Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotLuscombe 8E: 19 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

According to the pilot in the tailwheel-equipped airplane, he landed on the turf runway, and the airplane began to drift left. He made a right rudder pedal input that did not counter the left drift, and he adjusted his foot on the right rudder pedal so that he could apply differential braking. However, he reported that "my shoe was caught between the rudder pedal and the sheet metal fairing on the floorboard that covers the rudder pedal bell cranks," which prevented him from applying differential braking. The airplane exited the runway to the left and ground looped, the right main landing gear collapsed, and the right wing struck the ground. The airplane sustained substantial damage to the right-wing spar and right aileron. The pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation.

Factual narrative

According to the pilot in the tailwheel-equipped airplane, he landed on the turf runway and the airplane began to drift left. He made a right rudder pedal input that did not counter the left drift, and he adjusted his foot on the right rudder pedal so that he could apply differential braking. However, he reported that, "my shoe was caught between the rudder pedal and the sheet metal fairing on the floorboard that covers the rudder pedal bell cranks," preventing him from applying differential braking. The airplane exited the runway to the left, ground looped to the left, the right main landing gear collapsed, and the right wing struck the ground. The airplane sustained substantial damage to the right-wing spar and right aileron. The pilot reported that there were no pre-accident mechanical malfunctions or failures with the airplane that would have precluded normal operation.

Aircraft

Registration
N2604K
Reported as
Luscombe 8 (E)
Category
Airplane
Serial number
5331
Built
1947
Airframe hours
2,593
Engine
Continental C-85-12F, 85 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · February 10, 2016
Departed
ORK · North Little Rock, AR
Destination
AR88 · Conway, AR
Airport
AR88 · Poe'S, runway 11, 2,700 × 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

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
70
Injuries
None
Certificate
Commercial
Airplane ratings
Multi-engine land, Single-engine land, Single-engine sea
Instrument ratings
Airplane
Medical
Class 3, With waivers/limitations
Last flight review
March 5, 2016
Seat
Left
Restraint
Lap only
Flight hours
1,580 total · 1,489 in this make and model · 1,437 as pilot in command · 5 in the last 90 days · 2 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
30° at 9 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
55 °F, dew point 37 °F
Altimeter
30.37 inHg
Observed at
KLRF, 13 nm away

Docket · 2

The files NTSB released with the investigation on June 12, 2017, on NTSB’s docket system: statements, records, photos and specialists’ reports. 4.1 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.