GAA15CA078

NTSB accident investigation · Consolidated Aeronautics Lake LA4-200 · Mineral, VA · May 16, 2015

Accident · No injuriesData collectionFinal report
Date
May 16, 2015, 13:00 local (17:00 UTC)
Place
Mineral, VA
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Taxi
Aircraft
N1105LConsolidated Aeronautics Lake LA4-200
Defining event
Taxi: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report July 8, 2015
Report
Approved by Office Director
NTSB office
General Aviation Accidents
Parties
Federal Aviation Organization
FAA report
20150516007249A
Case key
91196

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Probable cause

The pilot's failure to maintain directional control during a high-speed water taxi in rough water conditions, resulting in a collision with a dock.

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/maintainedConsolidated Aeronautics LAKE LA-4: 2 casesAll aircraft: 3,958 casesProbable cause
Runway/land/takeoff/taxi surface: choppy surfaceEnvironmental issues › Physical environment · Effect on operationConsolidated Aeronautics LAKE LA-4: 2 casesAll aircraft: 20 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

The pilot stated that during high-speed taxi after a water landing, he encountered the wake from a boat. The sponson (float) "caught the water" on the second wave and the airplane made a right turn. The airplane subsequently impacted a dock resulting in substantial damage to the right wing and fuselage. The pilot reported no preimpact mechanical failures or malfunctions with the airframe or engine that would have precluded normal operation.

Factual narrative

The pilot stated that during high-speed taxi after a water landing, he encountered the wake from a boat. The sponson (float) "caught the water" on the second wave and the airplane made a right turn. The airplane subsequently impacted a dock resulting in substantial damage to the right wing and fuselage. The pilot reported no preimpact mechanical failures or malfunctions with the airframe or engine that would have precluded normal operation.

Aircraft

Registration
N1105L
Reported as
Consolidated Aeronautics Lake LA4-200 (200)
Category
Airplane
Serial number
696
Built
1975
Airframe hours
1,479
Engine
Lycoming IO-360-A1B, 200 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · March 20, 2015 · 20 hours before
Departed
FCI · Richmond, VA
Destination
Louisa, VA
Equipment
Stall warning system, Auto-pilot

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, Single-engine sea
Medical
Class 3, With waivers/limitations
Last flight review
August 19, 2013
Seat
Left
Restraint
3-point
Flight hours
760 total · 265 in this make and model · 711 as pilot in command

Weather

Conditions
Visual (VMC) · Day
Wind
200° at 4 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
82 °F, dew point 64 °F
Altimeter
30.17 inHg
Observed at
KLKU, 8 nm away

Docket · 2

The files NTSB released with the investigation on July 1, 2015, on NTSB’s docket system: statements, records, photos and specialists’ reports. 662 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.