ANC99LA105

NTSB accident investigation · Nix Avid Flyer · Chugiak, AK · July 18, 1999

Accident · No injuriesLimited investigationFinal report
Date
July 18, 1999, 13:00 local (21:00 UTC)
Place
Chugiak, AK
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Unknown
Aircraft
UNREGNix Avid Flyer
Weather
Visual (VMC) · Day
Status
Completed · report June 23, 2000
Report
Approved by Office Director
NTSB office
Alaska Regional Office
Case key
47155

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

A loss of engine power for an undetermined reason.

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 engine powerUnknown
Reason for occurrence undeterminedCause
In flight collision with terrain/waterEmergency landing
Terrain condition - swampyFactor

Analysis

According to an FAA inspector, the solo student pilot was told by another pilot at the airport the airplane should not be flown. He was also told he should receive instruction before flying it. The pilot was then observed placing fuel in the airplane and taking off. According to the FAA inspector who interviewed the pilot at his home, the pilot said the engine 'seized.' The airplane was damaged during the ensuing forced landing in mud flats. The FAA inspector said the propeller could be turned by hand, and the engine felt normal.

Factual narrative

On July 18, 1999, about 1300 Alaska daylight time, an unregistered Nix Avid Flyer experimental airplane sustained substantial damage during a forced landing after takeoff from the Birchwood Airport, Chugiak, Alaska. The solo student pilot was not injured. The airplane was owned and operated by the pilot. The flight was conducted under 14 CFR Part 91, as a local flight. Visual meteorological conditions prevailed at the time of the accident, and no flight plan was filed.

According to an FAA inspector who interviewed the pilot at his home, the pilot said he placed the fuel and oil mixture in the airplane, and then took off from Birchwood. The pilot indicated that shortly after takeoff, the engine "seized." During the ensuing forced landing, the landing gear contacted a rut, and the airplane nosed down. The airplane sustained substantial damage to the landing gear mounting structure. The FAA inspector told the NTSB investigator-in-charge that he was able to rotate the propeller by hand, and that the engine felt normal.

According to the FAA inspector, another pilot at the airport reported that he had told the accident pilot that the airplane was not legally airworthy and should not be flown. He also told the accident pilot that he should receive flight instruction before flying the airplane. The FAA inspector said the accident pilot was told that the engine was not reliable due to its age and lack of use. The witness pilot told the inspector that the accident pilot placed fuel in the airplane and took off. After about 30 minutes had elapsed, the witness pilot decided to look for the accident airplane and found it in the mud flats near the airport.

The pilot submitted an incomplete NTSB Pilot/Operator report.

Aircraft

Registration
UNREG
Reported as
Nix Avid Flyer
Category
Airplane, amateur-built
Serial number
67
Engine
Cuyuna 430, 43 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Gal Avigal
Registered owner
Aircraft Is Unregistered
Airworthiness certificate
Special, Experimental (Special)
Departed
BCV · Birchwood, AK

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
51
Certificate
Student
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
45 total

Weather

Conditions
Visual (VMC) · Day
Lowest ceiling
None