ANC98LA029

NTSB accident investigation · Cessna 185 · Mcgrath, AK · March 12, 1998

Accident · No injuriesLimited investigationFinal report
Date
March 12, 1998, 14:30 local (18:30 UTC)
Place
Mcgrath, AK
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N21546Cessna 185
Weather
Visual (VMC) · Day
Status
Completed · report February 15, 2001
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19980312006879A
Case key
3122

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 directional control after landing. Factors associated with the accident are the presence of snow covered terrain, a tree, and the pilot's selection of an unsuitable landing area.

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/waterLanding - roll
Terrain condition - snow coveredFactor
Unsuitable terrain or takeoff/landing/taxi area - selectedPilot in commandFactor
Directional control - not maintainedPilot in commandCause
On ground/water collision with objectLanding - roll
Object - tree(s)Factor

Analysis

The commercial pilot landed his wheel/ski equipped airplane on a frozen river. The pilot stated that after landing, he added power in an attempt to lift the tail, and turn the airplane in the opposite direction. The airplane's skis became stuck in grooves on the snow, and directional control was lost. The airplane's left wing struck a tree on the river bank and substantial damage was sustained to the leading edge. Wind conditions at the time of the accident were reported by the pilot to be calm.

Factual narrative

On March 12, 1998, about 1430 Alaska standard time, a wheel/ski equipped Cessna 185, airplane, N21546, sustained substantial damage after colliding with a tree while landing on a frozen river at Cripple, Alaska. The airplane was being operated as a visual flight rules (VFR) cross-country personal flight under Title 14 CFR Part 91, when the accident occurred. The certificated commercial pilot and the one passenger aboard were not injured. Visual meteorological conditions prevailed. No FAA flight plan was filed. The flight originated at the McGrath airport, McGrath, Alaska, at 1230.

During a telephone conversation with the National Transportation Safety Board (NTSB) investigator-in-charge (IIC), on March 13, 1998, at 1500, the pilot reported that during the landing roll, he added power in an attempt to lift the tail, and turn the airplane in the opposite direction. The airplane's skis became stuck in grooves on the snow, and veered from the intended direction, striking a tree and damaging the left wing's leading edge.

On March 23, 1998, the airplane was flown to a repair facility where an inspection was performed. During the inspection process it was discovered that a nose rib on the left wing sustained substantial damage, and was replaced.

Aircraft

Registration
N21546
Reported as
Cessna 185
Category
Airplane
Serial number
18503062
Airframe hours
4,421
Engine
Continental IO-520D-24B, 300 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Gary F. Chamberlain
Airworthiness certificate
Standard, Normal
Last inspection
Annual · July 1, 1997 · 231 hours before
Departed
MCG · Mcgrath, AK
Destination
Cripple, 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
49
Certificate
Commercial
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
4,000 total · 2,370 in this make and model · 4,000 as pilot in command · 125 in the last 90 days · 40 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
90 statute miles
Lowest ceiling
None
Temperature
19 °F

FAA reports on this event · 1

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