SEA04CA054

NTSB accident investigation · Menefee RAF Vari-Eze · Bremerton, WA · March 21, 2004

Accident · Minor injuriesData collectionFinal report
Date
March 21, 2004, 10:00 local (18:00 UTC)
Place
Bremerton, WA
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N200TZMenefee RAF Vari-Eze
Weather
Visual (VMC) · Day
Status
Completed · report June 30, 2004
Report
Approved by Office Director
Parties
FAA-FSDO
FAA report
20040321004359A
Case key
58937

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

Failure to maintain airspeed while on final approach resulting in a stall. Factors include a rough running engine for undetermined reasons and rough/uneven terrain.

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 power(partial) - nonmechanicalClimb
Reason for occurrence undetermined
Hard landingLanding
Airspeed - not maintainedPilot in commandCause
Stall
Gear collapsedLanding
Terrain condition - rough/unevenFactor
Landing gear - overload

Analysis

The pilot reported that shortly after takeoff the aircraft developed a rough running engine. The pilot stated he turned back toward the departure runway, but was unable to land due to traffic on the runway. The pilot stated he entered the traffic pattern and continued to the south for a landing on the departure runway. The pilot said the airplane was low, slow and unresponsive to roll inputs after turning final. Shortly after turning final, the pilot reported that the airplane "pancaked" in, coming to rest in a grassy area adjacent to runway 19. The pilot later reported that he believed the rough running engine was caused by a fouled sparkplug. An FAA inspector inspected the airplane after the accident and reported that there was no evidence found to indicate a mechanical failure and the cause of the engine vibration was undetermined.

Factual narrative

On March 21, 2004, at 1000 Pacific standard time, an amateur built, experimental category, Menefee RAF Vari-Eze airplane, N200TZ, sustained substantial damage during a hard landing at the Bremerton National Airport, Bremerton, Washington. The airplane was being operated as a visual flight rules (VFR) local flight under the provisions of 14 CFR Part 91, when the accident occurred. The private pilot, the sole occupant of the airplane, received minor injuries. Visual meteorological conditions prevailed and no flight plan was filed for the flight.

During a telephone conversation with the National Transportation Safety Board IIC, the pilot reported that shortly after takeoff the aircraft developed a rough running engine. The pilot stated he turned back toward the departure runway (19/1), but was unable to land due to traffic on the runway. The pilot stated he entered the traffic pattern and continued to the south for a landing on the departure runway. The pilot said the airplane was low, slow and unresponsive to roll inputs after turning final. Shortly after turning final, the pilot reported that the airplane "pancaked" in, coming to rest in a grassy area adjacent to runway 19.

The pilot reported that he believed the rough running engine was caused by a fouled sparkplug.

An FAA inspector from Seattle, Washington, Flight Standards District Office inspected the airplane after the accident and reported that there was no evidence found to indicate a mechanical failure and the cause of the engine vibration was undetermined.

The airplane was powered by an E81T Subaru engine rated at 100 horsepower.

Aircraft

Registration
N200TZ
Reported as
Menefee RAF Vari-Eze
Category
Airplane, amateur-built
Serial number
98383
Engine
Subaru E81T, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Allan E. Martin
Registered owner
Michael O. Menefee
Airworthiness certificate
Special, Experimental (Special)
Departed
PWT · Bremerton, WA
Destination
PWT · Bremerton, WA
Airport
PWT · Bremerton National, runway 16

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
Flight hours
1,022 total · 1 in this make and model

Weather

Conditions
Visual (VMC) · Day

FAA reports on this event · 1

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