GAA17CA062

NTSB accident investigation · Aeronca L 3B · Fitchburg, MA · November 8, 2016

Accident · No injuriesData collectionFinal report
Date
November 8, 2016, 10:45 local (15:45 UTC)
Place
Fitchburg, MA
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N46893Aeronca L 3B
Defining event
Landing-landing roll: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report April 4, 2017
Report
Approved by Office Director
NTSB office
General Aviation Accidents
Parties
FAA
FAA report
20161108024639A
Case key
94356

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 landing roll.

Findings · 3

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/maintainedAll aircraft: 3,958 casesProbable cause
Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotAll aircraft: 9,295 casesProbable cause
Object/animal/substance: runway/taxi/approach lightEnvironmental issues › Physical environment · Contributed to outcomeAll aircraft: 106 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 of a tailwheel-equipped airplane reported that, during the landing roll after his fifth landing, the airplane veered hard left. He corrected to the right, but as the airplane straightened out, the left main landing gear impacted a runway light, spinning the airplane around. Subsequently, the left main landing gear collapsed, and the airplane came to rest on the left side. The airplane sustained substantial damage to the elevator. The pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation. The pilot further reported that he received his tailwheel endorsement 3 months before the accident.

Factual narrative

The pilot of a tailwheel-equipped airplane reported that during the landing roll after his fifth landing, the airplane veered hard left. He further reported that he corrected to the right, but as the airplane straightened out, the left main landing gear impacted a runway light, spinning the airplane around. Subsequently, the left main landing gear collapsed and the airplane came to rest on the left side. The airplane sustained substantial damage to the elevator. The pilot reported no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation. The pilot further reported that he received his tailwheel endorsement 3 months prior to the accident.

Aircraft

Registration
N46893
Reported as
Aeronca L 3B (NO SERIES)
Category
Airplane
Serial number
058B2692
Built
1942
Airframe hours
3,871
Engine
Continental O-200, 100 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · February 12, 2016
Departed
KBAF · Westfield, MA
Destination
KFIT · Fitchburg, MA
Airport
KFIT · Fitchburg, runway 32, 4,500 × 100 ft, asphalt
Equipment
None

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
61
Injuries
None
Certificates
Flight instructor, Commercial, Airline transport
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, With waivers/limitations
Last flight review
November 4, 2016
Seat
Front
Restraint
Lap only
Flight hours
15,854 total · 8 in this make and model · 13,000 as pilot in command · 136 in the last 90 days · 58 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
None
Temperature
64 °F, dew point 36 °F
Altimeter
30.12 inHg
Observed at
KFIT

Docket · 2

The files NTSB released with the investigation on March 7, 2017, on NTSB’s docket system: statements, records, photos and specialists’ reports. 909 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.