ANC93LA187

NTSB accident investigation · Cessna 180A · Charlie Lake, AK · September 20, 1993

Accident · No injuriesLimited investigationFinal report
Date
September 19, 1993, 16:30 local (Sep 20, 1993, 00:30 UTC)
Place
Charlie Lake, AK
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N9600BCessna 180A
Weather
Visual (VMC) · Day
Status
Completed · report June 30, 1994
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19930919036359A
Case key
2436

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 delayed his decision to abort the takeoff, and did not follow the standard procedures/directives for the aborted takeoff. Factors were the pilot's improper preflight planning/decision, and the rough/uneven terrain.

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.

OverrunTakeoff - aborted
Aborted takeoff - delayedPilot in commandCause
Procedures/directives - not followedPilot in commandCause
Preflight planning/preparation - improperPilot in commandFactor
On ground/water encounter with terrain/waterTakeoff - aborted
Terrain condition - rough/unevenFactor

Analysis

The pilot said he aborted the takeoff attempt when he realized he probably would not get the floatplane airborne before reaching the end of the lake. He said he mistakenly pulled the propeller control knob back instead of the throttle control knob. The airplane hit the edge of the lake and went up onto the tundra, during which substantial damage was done to the airplane.

Factual narrative

History of flight

On September 19, 1993, at 1630 Alaska daylight time, a float equipped Cessna 180 airplane, N9600B, over ran the lake and collided with the terrain during an attempted takeoff at Charlie Lake, located 15 miles east of Farewell, Alaska. The private pilot and one passenger were not injured, and the airplane was substantially damaged. The personal flight was operating under 14 CFR Part 91 at the time. Visual meteorological conditions existed, and no flight plan was filed.

Shortly after the accident, during a telephone conversation, the pilot stated the following in part: "During the takeoff run I had one float off the water, and a gust of wind caused it to settle back down on the water. I didn't think I would get airborne before reaching the end of the lake, so decided to abort the takeoff. Then I mistakenly pulled back the propeller control knob instead of the throttle control knob. The airplane hit the edge of the lake and went up onto the tundra. The float struts and the left wing strut were damaged and had to be replaced."

Aircraft

Registration
N9600B
Reported as
Cessna 180A
Category
Airplane
Serial number
32897
Engine
Continental O-470-K, 235 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Cunningham, Raymond E.
Registered owner
Cunningham, Raymond E.
Airworthiness certificate
Standard, Normal
Last inspection
Annual · June 10, 1993 · 34 hours before
Destination
LHD · Anchorage, AK

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
51
Certificate
Private
Airplane ratings
Single-engine sea, Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
545 total · 475 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
110° at 10 knots, gusting 15
Visibility
50 statute miles
Lowest ceiling
10,000 ft overcast
Temperature
61 °F

FAA reports on this event · 1

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

Other investigations on N9600B · 1

Matched to the same aircraft by N-number and date.