ANC01LA008

NTSB accident investigation · Weste Avid · Chugiak, AK · October 15, 2000

Accident · Minor injuriesLimited investigationFinal report
Date
October 15, 2000, 13:40 local (21:40 UTC)
Place
Chugiak, AK
Injuries
1 minor
Damage
Substantial damage
Aircraft
N126DWWeste Avid
Weather
Visual (VMC) · Day
Status
Completed · report July 2, 2001
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
20001015041709A
Case key
50484

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Probable cause

The NTSB’s determination of the probable cause, and any contributing factors.

A total loss of engine power due to a piston failure. Factors in the accident were an out-of-rig flight control system, an inadvertent stall, and no suitable terrain for a forced landing.

Analysis

The private certificated pilot reported he was asked by the owner to fly a newly homebuilt experimental airplane to evaluate its handling characteristics. The pilot owns a similar homebuilt airplane. The pilot said he briefly flew the airplane in the past. To maintain level flight, the pilot said he had to hold the flight control stick to the right and forward of a neutral position. Additionally, he had to hold left rudder pressure to maintain a straight and level flight attitude. The pilot also said that he thought the airplane seemed airworthy. The owner of the airplane asked the pilot to fly one more time before any changes were made to the rigging of the flight controls. The pilot said he operated the airplane on the ground for about 20 minutes, and then departed to conduct some touch and go landings. The airplane required the same out-of-neutral positioning of the controls as the previous flight. The pilot made one low pass to the runway, and was following another airplane that had extended its downwind landing pattern. The pilot said he was at 500 feet msl when the engine, a Rotax 582, suddenly quit. The airplane entered an uncommanded right spin. He recovered the airplane from the spin above tree-top level and had insufficient altitude to land at the airport. The pilot made a forced landing in a swampy area with the landing gear in the down position. The right wing struck the ground and broke off. The pilot reported that the engine lost compression.

Factual narrative

On October 15, 2000, about 1340 Alaska daylight time, an experimental, homebuilt amphibious float equipped Weste Avid airplane, N126DW, sustained substantial damage during a forced landing, about 1/2 mile southwest of the Birchwood Airport, Chugiak, Alaska. The airplane was being operated as a visual flight rules (VFR) local area personal flight when the accident occurred. The airplane was registered to the owner, Don Weste, Anchorage, Alaska, and operated by the pilot. The private certificated pilot, the sole occupant, received minor injuries. Visual meteorological conditions prevailed. The flight originated at the Birchwood Airport about 1320.

During a telephone conversation with the National Transportation Safety Board (NTSB) investigator-in-charge (IIC), on October 15, 2000, the pilot reported he was asked by the owner of the airplane to fly the newly built airplane to evaluate its handling characteristics. The pilot owns a similar homebuilt Avid Amphibian. After construction, a forty-hour flight test period is required for non type-certificated airplanes. The pilot said he briefly flew the airplane in the past. To maintain level flight, the pilot said he had to hold the flight control stick to the right and forward of a neutral position. Additionally, he had to hold left rudder pressure to maintain a straight and level flight attitude. The pilot also said that he thought the airplane seemed airworthy.

The owner of the airplane asked the pilot to fly one more time before any changes were made to the rigging of the flight controls. The pilot said he operated the airplane on the ground for about 20 minutes and then departed to conduct some touch and go landings. The airplane required the same out-of-neutral positioning of the controls as the previous flight. The pilot made one low pass to runway 19 at the Birchwood Airport, and was following another airplane that had extended its downwind landing pattern. The pilot said he was at 500 feet msl when the engine, a Rotax 582, suddenly quit. The airplane entered an uncommanded right spin. He recovered the airplane from the spin above tree-top level and had insufficient altitude to land at the airport. The pilot made a forced landing in a swampy area with the landing gear in the down position. The right wing struck the ground and broke off.

In the Pilot/Operator report (NTSB form 6120.1/2) submitted by the pilot, the pilot indicated that the engine lost compression.

Aircraft

Registration
N126DW
Reported as
Weste Avid
Category
Airplane, amateur-built
Serial number
026
Engine
Rotax 582, 65 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Ken M. Boze
Registered owner
Don A. Weste
Airworthiness certificate
Special, Experimental (Special)
Departed
PABV
Airport
PABV · Birchwood

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
48
Certificate
Private
Airplane ratings
Single-engine sea, Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
201 total · 79 in this make and model · 111 as pilot in command · 8 in the last 90 days · 8 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
None
Temperature
41 °F
Altimeter
29.00 inHg
Observed at
PAB

FAA reports on this event · 1

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