CHI01LA098

NTSB accident investigation · Cessna 170B · South Haven, MN · March 4, 2001

Accident · No injuriesLimited investigationFinal report
Date
March 4, 2001, 13:30 local (19:30 UTC)
Place
South Haven, MN
Injuries
3 uninjured
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N2577DCessna 170B
Weather
Visual (VMC) · Day
Status
Completed · report October 9, 2001
Report
Approved by Office Director
Parties
FAA - Minneapolis FSDO
FAA report
20010304002479A
Case key
51856

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 altitude/clearance from the terrain during the maneuver to avoid the tree line. Factors to the accident were the diminished aircraft handling, the pilot's maneuver to avoid the tree line, the unsuitable terrain for takeoff selected by the pilot, the snow covered lake, and the tree line.

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 terrain/waterTakeoff - initial climb
Aircraft handling - diminishedFactor
Terrain condition - snow coveredFactor
Unsuitable terrain or takeoff/landing/taxi area - selectedPilot in commandFactor
Object - tree(s)Factor
Maneuver to avoid obstructions - attemptedPilot in commandFactor
Altitude/clearance - not maintainedPilot in commandCause

Analysis

The pilot was attempting a takeoff from a snow-covered frozen lake. According to the pilot's written statement, "Taking off lake on skis. Snow was sticky - take off run was long - got airborne - couldn't climb above approaching trees - elected to turn left and land on lake." The pilot reported, "Hit the snow with the left wing tip - couldn't straighten flight path - ski on right hit snow with side load & ripped off under plane with the whole gear[.]" The pilot stated that the airplane came to rest approximately 120-feet from where the wingtip impacted terrain.

Factual narrative

On March 4, 2001, at 1330 central standard time, a Cessna 170B, N2577D, piloted by a commercial pilot, sustained substantial damage during an in-flight collision with terrain during a takeoff from a frozen lake near South Haven, Minnesota. Visual meteorological conditions prevailed at the time of the accident. The personal flight was operating under the provisions of 14 CFR Part 91 and was not on a flight plan. The pilot and his two passengers reported no injuries. The flight was departing at the time of the accident and had the intended destination of Forest Lake, Minnesota.

According to the pilot's written statement, "Taking off lake on skis. Snow was sticky - take off run was long - got airborne - couldn't climb above approaching trees - elected to turn left and land on lake." The pilot reported, "Hit the snow with the left wing tip - couldn't straighten flight path - ski on right hit snow with side load & ripped off under plane with the whole gear[.]" The pilot stated that the airplane came to rest approximately 120-feet from where the wingtip impacted terrain.

Aircraft

Registration
N2577D
Reported as
Cessna 170B
Category
Airplane
Serial number
20729
Airframe hours
4,091
Engine
Continental O-300-B, 145 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Air Shipp LLC
Airworthiness certificate
Standard, Normal
Last inspection
Annual · January 5, 2001 · 5 hours before
Departed
South Haven, MI
Destination
Forest Lake, MN

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
65
Injuries
None
Certificates
Commercial, Flight instructor
Airplane ratings
Multi-engine land, Single-engine sea, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Last flight review
September 27, 2000
Seat
Right
Flight hours
3,475 total · 1,000 in this make and model · 3,200 as pilot in command · 16 in the last 90 days · 11 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
310° at 9 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
25 °F, dew point 9 °F
Altimeter
30.20 inHg
Observed at
STC, 20 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.