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CHI92LA253

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NTSB accident investigation · Lake LA-4 · Pontiac, MI · August 13, 1992

Accident · No injuriesLimited investigationFinal report

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Date
August 13, 1992, 18:00 local (22:00 UTC)
Place
Pontiac, MI
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N8WWLake LA-4
Weather
Visual (VMC) · Day
Status
Completed · report May 26, 1993
Report
Approved by Office Director
FAA report
19920813032979A
Case key
15529

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 instructor pilot's directing a turn to change heading in the flare.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Abrupt maneuverLanding - flare/touchdown
Airport facilities,runway/landing area condition - water
Flare - initiatedDual student
Object - other person
Visual lookout - inadequatePilot in command(cfi)Factor
Go-around - not performedPilot in command(cfi)
Maneuver - initiatedPilot in command(cfi)Cause
Other gear collapsedLanding - flare/touchdown
Landing gear,float assembly - overload
Proper alignment - exceededDual student

Analysis

In the flare for a water landing, a dual student initiated a turn at the instructors instance to avoid a boat near their landing path. The airplane landed with side loading and shed its left sponson.

Aircraft

Registration
N8WW
Reported as
Lake LA-4
Category
Airplane
Serial number
379
Engine
Lycoming O-360-A1AA, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Operator
Howard Fired & Thomas Hendren
Registered owner
Howard Fired & Thomas Hendren
Airworthiness certificate
Standard, Normal
Last inspection
Unknown · January 2, 2000
Departed
PTK · Pontiac, MI
Destination
PTK · Pontiac, MI
Airport
NONE · Elizabeth Lake

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Certificates
Commercial, Flight instructor
Airplane ratings
Single-engine land, Single-engine sea
Instrument ratings
Airplane
Medical
Unknown, Unknown
Seat
Right

Weather

Conditions
Visual (VMC) · Day
Wind
60° at 12 knots
Visibility
10 statute miles
Lowest ceiling
4,500 ft broken
Temperature
63 °F, dew point 54 °F
Altimeter
30.00 inHg
Observed at
PTK, 3 nm away

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.

Accident 19920813032979AConaer LA4 · Pontiac, MIBoat crossed amphibians path as student flared to land. CFI advised her to alter course. Water impact severed floatAug 13, 1992 · N8WW · Substantial damage