ANC96LA040

NTSB accident investigation · Cessna 185 · Anchorage, AK · March 31, 1996

Accident · No injuriesLimited investigationFinal report
Date
March 31, 1996, 15:10 local (19:10 UTC)
Place
Anchorage, AK
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Taxi
Aircraft
N9875XCessna 185
Weather
Visual (VMC) · Day
Status
Completed · report July 25, 1996
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19960331005679A
Case key
2813

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 inadequate compensation for gusty crosswind conditions. The strong, gusty crosswind was a factor.

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.

Loss of control - on ground/waterTaxi - from landing
Weather condition - crosswindFactor
Compensation for wind conditions - inadequatePilot in commandCause
Weather condition - gustsFactor
Gear collapsedTaxi - from landing
Landing gear,main gear - overload

Analysis

The pilot had landed on a frozen lake with a ski-equipped airplane and was taxiing to his parking area in a westerly direction. Strong winds from the right produced a weather-vaning tendency on the airplane and the pilot countered by using engine power to maintain directional control. A gust of wind picked up the right wing and the airplane began moving sideways. The left main gear ski dug into the snow and the gear collapsed. The left wing then struck the surface of the lake. The wind conditions were 010 degrees at 22 knots, gusting to 28.

Factual narrative

On March 31, 1996, about 1510 Alaska standard time, a ski equipped Cessna 185, N9875X, was upset by gusty winds while taxiing from landing at Lake Hood Seaplane Base, Anchorage, Alaska. The airplane was being operated as a visual flight rules (VFR) cross-country personal flight when the accident occurred. The airplane, registered to and operated by the pilot, sustained substantial damage. The certificated private pilot, the sole occupant, was not injured. Visual meteorological conditions prevailed. The flight originated at Lake Louise, Alaska, at 1400.

The pilot reported that he landed to the west on the frozen lake and was taxiing to his parking area. Strong winds from the right were producing a weather-vaning tendency on the airplane and he countered by using engine power to maintain directional control. A gust of wind picked up the right wing and the airplane began moving sideways. The left main gear ski dug into the snow and the gear collapsed. The left wing then struck the surface of the lake. The airplane received damage to the left main gear, left wing, and the left horizontal stabilizer.

The 1452 weather observation at Anchorage stated in part: Sky condition and ceiling, clear; visibility, 90 miles; temperature, 36 degrees F; dew point, 11 degrees F; wind, 010 degrees at 22 knots, gust to 28 knots; altimeter, 30.06 inHg.

Aircraft

Registration
N9875X
Reported as
Cessna 185
Category
Airplane
Serial number
185-0075
Airframe hours
2,053
Engine
Continental IO-470F, 260 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Patsy F. Santoro
Airworthiness certificate
Standard, Normal
Last inspection
Annual · May 20, 1995 · 48 hours before
Departed
Lake Louise, AK
Destination
LHD
Airport
LHD · Lake Hood Seaplane

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
44
Certificate
Private
Airplane ratings
Single-engine sea, Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
630 total · 550 in this make and model · 630 as pilot in command · 5 in the last 90 days · 5 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
10° at 22 knots, gusting 28
Visibility
90 statute miles
Lowest ceiling
None
Temperature
36 °F, dew point 10 °F
Altimeter
30.00 inHg
Observed at
ANC, 1 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.