CHI06CA246

NTSB accident investigation · Aviat A-1B · Minocqua, WI · August 26, 2006

Accident · No injuriesData collectionFinal report
Date
August 26, 2006, 16:30 local (21:30 UTC)
Place
Minocqua, WI
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N314MAAviat A-1B
Weather
Visual (VMC) · Day
Status
Completed · report November 29, 2006
Report
Approved by Office Director
Parties
Milwaukee, WI FSDO
FAA report
20060826026689A
Case key
64450

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 inadvertent collision with power lines. A factor associated with the accident was the water which blended in with the power lines resulting in the pilot's inability to see them prior to contact.

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.

In flight collision with objectApproach - vfr pattern - final approach
Terrain condition - waterFactor
Object - wire,transmissionCause
Visual lookout - attemptedPilot in command
In flight collision with terrain/waterDescent - uncontrolled
Terrain condition - water

Analysis

The amphibious airplane collided with power lines while on final approach to land on a lake. The pilot reported that he flew upwind over the lake at an altitude of 500 feet above the water to look for boats and obstructions. Not seeing any, he entered a traffic pattern to land. He reported that he was on final approach, slightly below tree top level, when the airplane contacted the power line. The pilot reported that he instantly applied full power and back elevator trying to keep the airplane level. He reported the airplane "pancaked" into the water. The pilot and passenger exited the airplane without injury. Inspection of the landing site revealed the poles which supported the power lines were located in wooded areas on both sides of the water and the color of the power line blended with the water. The pilot reported that residents who live on the lake informed him that the power lines were marked with orange balls until the lines were replaced a couple years ago at which time the balls were removed.

Factual narrative

The amphibious airplane collided with power lines while on final approach to land on a lake. The pilot reported he flew upwind over the lake at an altitude of 500 feet above the water to look for boats and obstructions. Not seeing any, he entered a traffic pattern to land. He reported he was on final approach, slightly below tree top level, when the airplane contacted the power line. The pilot reported he instantly applied full power and back elevator trying to keep the airplane level. He reported the airplane "pancaked" into the water. The pilot and passenger exited the airplane without injury. Inspection of the landing site revealed the poles which supported the power lines were located in wooded areas on both sides of the water and the color of the power line blended with the water. The pilot reported that residents who live on the lake informed him that the power lines were marked with orange balls until the lines were replaced a couple years ago at which time the balls were removed.

Aircraft

Registration
N314MA
Reported as
Aviat A-1B
Category
Airplane
Serial number
2179
Engine
Lycoming O-360, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Richard W. Hansen
Airworthiness certificate
Standard, Normal
Departed
Lac Du Flambeau, WI
Destination
Minocqua, WI

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
69
Injuries
None
Certificate
Commercial
Airplane ratings
Single-engine sea, Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 3
Flight hours
6,967 total · 30 in this make and model · 6,967 as pilot in command · 57 in the last 90 days · 20 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
0 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
72 °F
Altimeter
30.10 inHg

FAA reports on this event · 1

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