ERA10CA223

NTSB accident investigation · Consolidated Aeronautics Lake LA-4-200 · Moore Haven, FL · April 7, 2010

Accident · No injuriesData collectionFinal report
Date
April 7, 2010, 12:30 local (16:30 UTC)
Place
Moore Haven, FL
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N4GSConsolidated Aeronautics Lake LA-4-200
Defining event
Landing-flare/touchdown: Dragged wing/rotor/float/other
Weather
Visual (VMC) · Day
Status
Completed · report December 20, 2010
Report
Approved by Office Director
NTSB office
Eastern Region Aviation
Parties
FAA/FSDO
FAA report
20100407033039A
Case key
75725

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 a water landing.

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/maintainedConsolidated Aeronautics LAKE LA-4-200: 5 casesAll aircraft: 3,958 casesProbable cause
Terrain: waterEnvironmental issues › Physical environment · Not specifiedConsolidated Aeronautics LAKE LA-4-200: 2 casesAll aircraft: 97 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 the amphibious airplane was performing numerous touch-and-go water landings to a lake. During the last landing, to the south, the airplane touched down with the nose a "little bit" to the right, the left sponson then hit the water, and the airplane water looped. Several minutes later, the airplane sank to the bottom of the lake. The airplane incurred substantial damage to both wings and the fuselage. The pilot reported that there were no mechanical malfunctions or failures of the airplane prior to the accident. A weather observation taken about the time of the accident, and approximately 25 miles north of the accident site, included winds from 180 degrees true at 8 knots.

Factual narrative

The pilot of the amphibious airplane was performing numerous touch and go water landings to a lake. During the last landing, to the south, the airplane touched down with the nose a "little bit" to the right, the left sponson then hit the water, and the airplane water looped. Several minutes later, the airplane sank to the bottom of the lake. The airplane incurred substantial damage to both wings and the fuselage. The pilot reported that there were no mechanical malfunctions or failures of the airplane prior to the accident. A weather observation taken about the time of the accident, and approximately 25 miles north of the accident site, included winds from 180 degrees true at 8 knots.

Aircraft

Registration
N4GS
Reported as
Consolidated Aeronautics Lake LA-4-200
Category
Airplane
Serial number
738
Airframe hours
2,262
Engine
Lycoming IO360 SER A&C, 200 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Fish N Fly LLC
Registered owner
Fish N Fly LLC
Airworthiness certificate
Standard, Normal
Last inspection
Annual · February 19, 2010
Departed
KLNA · West Palm Beach, FL
Destination
KOBE · Okeechobee, FL
Airport
OBE · Okeechobee County Airport

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
57
Injuries
None
Certificates
Commercial, Flight instructor, Private
Airplane ratings
Single-engine sea, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, With waivers/limitations
Last flight review
March 17, 2010
Seat
Left
Flight hours
395 total · 260 in this make and model · 367 as pilot in command · 53 in the last 90 days · 20 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
130° at 8 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
79 °F, dew point 61 °F
Altimeter
30.11 inHg
Observed at
KOBE, 25 nm away

Docket · 4

The files NTSB released with the investigation on August 20, 2010, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.4 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.