ANC04LA035

NTSB accident investigation · Cessna 180H · Talkeetna, AK · March 22, 2004

Accident · No injuriesLimited investigationFinal report
Date
March 22, 2004, 15:15 local (19:15 UTC)
Place
Talkeetna, AK
Injuries
3 uninjured
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N2472FCessna 180H
Weather
Visual (VMC) · Day
Status
Completed · report September 29, 2004
Report
Approved by Office Director
NTSB office
Alaska Regional Office
Parties
FAA-AL-ANC FSDO 03
FAA report
20040322004909A
Case key
58938

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 selection of unsuitable terrain for takeoff, which resulted in a collision with a snow drift during takeoff/initial climb. Factors contributing to the accident were the snow-covered and 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.

In flight collision with terrain/waterTakeoff - initial climb
Terrain condition - rough/unevenFactor
Unsuitable terrain or takeoff/landing/taxi area - selectedPilot in commandCause
Terrain condition - snow coveredFactor

Analysis

The airline transport certificated pilot was departing from a snow-covered area on a remote glacier in a ski-equipped airplane. During the downhill takeoff from the glacier, the pilot said that the left main landing gear ski collided with snow-covered terrain just after the airplane became airborne, and the left main landing gear strut was torn off the fuselage. During the subsequent emergency landing on the snow, the airplane received additional damage to the left wing and fuselage. The pilot said the weather conditions were clear, and the visibility was unrestricted. An emergency locator transmitter (ELT) signal was received by search and rescue personnel, and the airplane's occupants were picked up by a rescue helicopter. In the Pilot/Operator Aircraft Accident Report (NTSB Form 6120.1) submitted by the pilot, the pilot indicated that the landing/takeoff area had 6 to 8 feet high snow drifts, but the area was still being used by local ski-equipped aircraft.

Factual narrative

On March 22, 2004, about 1515 Alaska standard time, a ski-equipped Cessna 180H airplane, N2472F, sustained substantial damage when it collided with snow-covered terrain during takeoff-initial climb from a remote glacier, about 43 miles northwest of Talkeetna, 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 airplane was operated by the pilot. The airline transport certificated pilot, and the two passengers, were not injured. Visual meteorological conditions prevailed. The pilot departed from Palmer, Alaska, at 1122 on a round-robin VFR flight plan to the Lake Hood Seaplane Base, Anchorage, Alaska, to the Ruth Glacier, and return.

At 1745, Federal Aviation Administration personnel received a relayed report from an overlying aircraft that the accident airplane was disabled on the Ruth Glacier. The airplane was declared overdue, and search and rescue personnel were notified. An emergency locator transmitter (ELT) signal was received by search and rescue personnel in the area of the accident. The occupants of the airplane were picked up by a rescue helicopter at 2025.

During a telephone conversation with the National Transportation Safety Board (NTSB) investigator-in-charge (IIC), on March 23, the pilot reported that he departed Finger Lake Seaplane Base in Palmer to pick up passengers at Lake Hood. The flight then continued to the Sheldon Mountain House, located on the Ruth Glacier in the Alaska Range. During the downhill takeoff from the glacier, the pilot said that the left main landing gear ski collided with snow-covered terrain just after the airplane became airborne, and the left main landing gear strut was torn off the fuselage. During the subsequent emergency landing on the snow, the airplane received additional damage to the left wing and fuselage. The pilot said the weather conditions were clear, and the visibility was unrestricted.

In the Pilot/Operator Aircraft Accident Report (NTSB Form 6120.1) submitted by the pilot, the pilot indicated that the landing/takeoff area had 6 to 8 feet high snow drifts, but the area was still being used by local ski-equipped aircraft.

Aircraft

Registration
N2472F
Reported as
Cessna 180H
Category
Airplane
Serial number
18051674
Engine
Continental O-470-K, 230 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Rex L Gray
Airworthiness certificate
Standard, Normal
Last inspection
Annual · November 20, 2003 · 39 hours before
Departed
Talkeetna, AK
Destination
99Z · Palmer, AK
Flight plan
VFR

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
55
Injuries
None
Certificates
Flight instructor, Commercial, Flight engineer, Airline transport
Airplane ratings
Multi-engine land, Single-engine sea, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--w/ waivers/lim
Last flight review
October 9, 2003
Seat
Left
Flight hours
19,900 total · 1,250 in this make and model · 16,500 as pilot in command · 100 in the last 90 days · 25 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Visibility
50 statute miles
Lowest ceiling
None
Temperature
32 °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 N2472F · 3

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