LAX89DVD02

NTSB accident investigation · War Replicas P-51 · Tracy, CA · February 4, 1989

Accident · FatalFinal report
Date
February 4, 1989, 15:45 local (23:45 UTC)
Place
Tracy, CA
Injuries
1 fatal
Damage
Destroyed
Phase of flight
Approach
Aircraft
N51KWar Replicas P-51
Weather
Visual (VMC) · Day
Status
Completed · report January 11, 1990
Report
Approved by Office Director
FAA report
19890204001999A
Case key
26160

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.

The improper installation of the aileron controls of this homebuilt acft by the pilot/manufacturer which led to the inflight loss of control of the airplane. Contributing to the accident was the pilot's inexperience in the airplane.

Analysis

During a local test flight, the pilot lost control of the half-scale P-51 airplane while turning from downwind to base. The airplane collided with the terrain short of the runway. Inspection of the airplane revealed that the aileron control bellcrank was not installed in accordance with records held by the pilot/manufacturer. Witnesses reported seeing both ailerons and the wings fluttering before the crash. Evidence indicated aileron overtravel. The cockpit control stick was not equipped with control travel stops.

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 flightApproach - vfr pattern - base turn
Flight control,aileron attachment - improperCause
Maintenance,modification - not correctedPilot in commandCause
Flight control,aileron - flutterCause
Lack of total experience in type of aircraftPilot in commandFactor
In flight collision with terrain/waterDescent - uncontrolled

Aircraft

Registration
N51K
Reported as
War Replicas P-51
Category
Airplane, amateur-built
Serial number
001
Airframe hours
9
Engine
Honda 1829CC, 104 horsepower, reciprocating
Damage
Destroyed
Flight
Part 91
Registered owner
Peter M. Nieber
Airworthiness certificate
Special, Experimental (Special)
Departed
036 · Tracy, CA
Airport
036 · Tracy, runway 29, 3,680 × 100 ft, asphalt

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
43
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--no waivers/lim.
Seat
Front
Toxicology
Performed
Flight hours
622 total · 9 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Lowest ceiling
None
Temperature
-0 °F

FAA reports on this event · 1

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