ANC98LA129

NTSB accident investigation · Drake Kitfox III · Aniak, AK · August 23, 1998

Accident · Minor injuriesLimited investigationFinal report
Date
August 22, 1998, 16:30 local (Aug 23, 1998, 00:30 UTC)
Place
Aniak, AK
Injuries
1 minor
Damage
Destroyed
Phase of flight
Enroute
Aircraft
N3203NDrake Kitfox III
Weather
Visual (VMC) · Day
Status
Completed · report February 16, 2001
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19980822029239A
Case key
43871

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 in-flight planning/decision, and an inadvertent stall. Factors in the accident were the pilot/owner's improper installation and pitch setting of the propeller assembly, and a tailwind.

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 - in flightClimb
Propeller system/accessories - improperFactor
Maintenance,installation - improperOwner/pilot mechanicFactor
Weather condition - tailwindFactor
In-flight planning/decision - inadequatePilot in commandCause
Stall/mush - inadvertentPilot in commandCause
In flight collision with terrain/waterDescent - uncontrolled
Terrain condition - mountainous/hilly

Analysis

The certificated private pilot was flying cross-country in a tailwheel equipped, experimental/homebuilt airplane. The flight was proceeding in a westbound direction over remote terrain. A tailwind was blowing from the east about 20 knots throughout the flight. The pilot landed at a small airstrip near the accident site for a short rest. During the landing, he damaged a wheel strut. He made repairs to the strut, and departed the airstrip toward the west. The pilot attempted to climb the airplane over a ridgeline that was about 1,700 feet high, and about 10 miles west of the departure point. While attempting to climb over the ridgeline, the airplane stalled, and descended to the ground. The pilot, who was the builder of the airplane, said the airplane's propeller pitch was not set correctly, limiting the airplane's climb capability.

Factual narrative

On August 22, 1998, about 1630 Alaska daylight time, a wheel equipped, experimental/homebuilt Drake Kitfox III airplane, N3203N, was destroyed during a collision with a ridgeline, about 37 miles east-southeast of Aniak, Alaska. The airplane was being operated as a visual flight rules (VFR) cross-country personal flight when the accident occurred. The airplane was operated by the pilot/owner. The certificated private pilot, the sole occupant, received minor injuries. Visual meteorological conditions prevailed. A VFR flight plan was filed by the pilot, but not activated. The flight originated at the Merrill Field Airport, Anchorage, Alaska, about 1035.

During a telephone conversation with the National Transportation Safety Board (NTSB) investigator-in-charge (IIC), on August 27, 1998, at 1240, the pilot reported the following: He was traveling to Tuluksak, Alaska, to begin a teaching job. The wind was blowing from the east about 20 knots, and was producing a tailwind throughout the accident flight. He landed at a small airstrip near the accident site for a short rest. During the landing, he damaged a wheel strut. He made repairs to the strut, and departed the airstrip toward the west. He attempted to climb the airplane over a ridgeline that was about 1,700 feet high, and about 10 miles west of the departure point. While attempting to climb over the ridgeline, the airplane stalled, and descended to the ground. He said the airplane's propeller pitch was not set correctly, limiting the airplane's climb capability.

An Alaska State Trooper stationed in Aniak, Alaska, reported he was notified by the Alaska Rescue Coordination Center, of an emergency locator transmitter (ELT) signal that was transmitting from the accident area. The accident flight had been reported overdue by the pilot's spouse to the FAA's Regional Operations Center. The trooper responded to the area of the accident in a airplane, and spotted the wreckage. The pilot contacted the trooper airplane via radio, and reported he had sustained head and facial injuries. An Alaska National Guard helicopter responded to the scene from Bethel, Alaska, and transported the pilot to the hospital.

The pilot holds a private pilot certificate with a single-engine rating. He also holds a repairman experimental aircraft builder certificate for the accident airplane. The pilot was the owner/builder of the airplane.

Aircraft

Registration
N3203N
Reported as
Drake Kitfox III
Category
Airplane, amateur-built
Serial number
1145
Engine
Rotax 582, 65 horsepower, reciprocating
Damage
Destroyed
Flight
Personal · Part 91
Registered owner
Bradley J. Drake
Airworthiness certificate
Special, Experimental (Special)
Departed
MRI · Anchorage, AK
Destination
TLT · Tuluksak, 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
38
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
77 total · 13 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
90° at 15 knots, gusting 20
Visibility
5 statute miles
Lowest ceiling
2,500 ft broken
Temperature
61 °F

FAA reports on this event · 1

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