ANC05LA117

NTSB accident investigation · Aviat A-1 · Anchorage, AK · August 5, 2005

Accident · No injuriesLimited investigationFinal report
Date
August 5, 2005, 13:00 local (21:00 UTC)
Place
Anchorage, AK
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N8XJAviat A-1
Weather
Visual (VMC) · Day
Status
Completed · report February 28, 2006
Report
Approved by Office Director
NTSB office
Alaska Regional Office
Parties
Anchorage FSDO-03
Case key
62254

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 flight instructor's inadequate supervision of the dual student, and his failure to maintain control of the airplane. A factor associated with the accident was the dual student's excessive application of the brakes.

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 - on ground/waterLanding - roll
Supervision - inadequatePilot in command(cfi)Cause
Aircraft control - not maintainedPilot in command(cfi)Cause
Brakes(normal) - excessiveDual studentFactor
Terrain condition - runway
Nose overLanding - roll

Analysis

The owner of the accident airplane reported that the certificated flight instructor was conducting a Title 14, CFR Part 91 instructional flight giving tailwheel instruction and practicing wheel landings, when the dual student applied the brakes too heavily, and the airplane nosed over. The owner said the instructor reported damage to the wing leading edges, rudder and lift struts. The owner indicated there were no known mechanical anomalies with the airplane prior to the accident.

Factual narrative

On August 5, 2005, about 1300 Alaska daylight time, a tailwheel equipped Aviat Husky A-1 airplane, N8XJ, sustained substantial damage when it nosed over during the landing roll at the Goose Bay Airport, about 8 miles north of Anchorage, Alaska. The airplane was being operated by the certificated flight instructor as a visual flight rules (VFR) instructional flight under Title14, CFR Part 91 when the accident occurred. The instructor and dual student were not injured. Visual meteorological conditions prevailed, and no flight plan was filed. The flight departed Lake Hood Strip, Anchorage, about 1145.

During a telephone conversation with the National Transportation Safety Board (NTSB) investigator-in-charge (IIC) on August 5, the owner of the airplane said the instructor was giving tailwheel instruction, and practicing wheel landings when the dual student applied the brakes too heavily, and the airplane nosed over. The owner said the instructor reported damage to the wing leading edges, rudder and lift struts. The owner said there were no known mechanical anomalies with the airplane prior to the accident.

The NTSB Form 6120.1 sent to the flight instructor was returned unclaimed.

Aircraft

Registration
N8XJ
Reported as
Aviat A-1
Category
Airplane
Serial number
1388
Engine
Lycoming O-360-A1D, 180 lbs thrust, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Registered owner
Charles Pearson
Airworthiness certificate
Standard, Normal
Departed
Z41 · Lake Hood, AK
Destination
Z40 · Anchorage, AK
Airport
Z40 · Goose Bay, runway 07, 3,000 × 75 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
Flight instructor
Age
25
Injuries
None
Certificates
Commercial, Flight instructor
Airplane ratings
Single-engine land
Medical
Class 1, Without waivers/limitations

Weather

Conditions
Visual (VMC) · Day
Wind
0 knots