ANC95LA035

NTSB accident investigation · Cessna 150M · Glennallen, AK · March 18, 1995

Accident · No injuriesLimited investigationFinal report
Date
March 18, 1995, 14:20 local (18:20 UTC)
Place
Glennallen, AK
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N88808Cessna 150M
Weather
Visual (VMC) · Day
Status
Completed · report September 24, 1995
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19950318007149A
Case key
2632

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 landing. Factors in the accident were a soft, snow covered runway, and the pilot's lack of total aeronautical experience.

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.

On ground/water encounter with terrain/waterLanding - roll
Airport facilities,runway/landing area condition - snow coveredFactor
Airport facilities,runway/landing area condition - softFactor
Unsuitable terrain or takeoff/landing/taxi area - selectedPilot in commandCause
Lack of total experiencePilot in commandFactor
Nose overLanding - roll

Analysis

During a solo cross-country instructional flight, the student pilot encountered low ceilings in the area of the destination airport. The pilot turned around, however then noticed that the weather conditions seemed to improve. He again started toward the destination. Weather conditions again deteriorated and the pilot decided to land at a remote airstrip for fuel. The runway was snow covered and had several tracks that appeared to be aircraft wheel tracks. The pilot evaluated the runway condition from the air and it appeared to be hard-packed. During the landing roll, the airplane encountered about 9 inches of soft snow and the airplane nosed over. The runway is unattended and maintained by local parties on an unofficial basis. The pilot had accrued 37 total flight hours at the time of the accident.

Factual narrative

On March 18, 1995, about 1420 Alaska standard time, a wheel equipped Cessna 150, N88808, crashed during landing at Skelton Airstrip near the Eureka Roadhouse, about 50 miles southwest of Glennallen, Alaska. The airplane was being operated as a visual flight rules (VFR) solo cross-country instructional flight to Gulkana Airport, Glennallen, when the accident occurred. The airplane, operated by Red Baron Air, Anchorage, Alaska, sustained substantial damage. The pilot, holder of a student pilot certificate, the sole occupant, was not injured. Visual meteorological conditions prevailed. A VFR flight plan was filed. The flight originated at Merrill Field, Anchorage, about 1110.

The pilot reported that as the flight progressed through the Tahneta Pass, he observed low ceilings in the area of Glennallen and decided to turn around. The weather then seemed to improve and the pilot once again headed toward Glennallen. The pilot indicated that the weather conditions again deteriorated and he decided to land at Skelton airstrip for fuel. The pilot evaluated the runway surface from the air. The runway appeared hard-packed with numerous tracks on the surface. The pilot performed a soft field landing on runway 03 and during the touchdown, the main landing gear dug into about 9 inches of soft snow. The airplane then nosed over and received damage to the nose wheel, engine, and vertical stabilizer.

The airport/facility directory for Skelton airstrip states in part: "Airport remarks - unattended. Runway condition not monitored, recommend visual inspection prior to using. Runway 03/21 rough and soft when wet, dips and bumps in runway... Runway 03 last 1,120 feet narrows to 15 feet wide. Airport maintained by local parties on an unofficial basis."

Aircraft

Registration
N88808
Reported as
Cessna 150M
Category
Airplane
Serial number
15076150
Airframe hours
2,702
Engine
Continental O-200A, 100 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Operator
Red Baron Air
Registered owner
Darrell R. Knackstedt
Airworthiness certificate
Standard, Normal
Last inspection
Annual · March 1, 1995 · 20 hours before
Departed
MRI · Anchorage, AK
Destination
GKN · AK
Flight plan
VFR
Airport
Z37 · Skelton, runway 3, 2,400 × ft, gravel

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
41
Certificate
Student
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
37 total · 10 in this make and model · 12 as pilot in command · 12 in the last 90 days · 10 in the last 30 days · 4 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
30° at 3 knots, gusting 6
Visibility
30 statute miles
Lowest ceiling
None
Temperature
36 °F

FAA reports on this event · 1

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