SEA06LA040

NTSB accident investigation · Holscher KR II · McNeil Island, WA · January 8, 2006

Accident · No injuriesLimited investigationFinal report
Date
January 8, 2006, 11:35 local (19:35 UTC)
Place
McNeil Island, WA
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N395JTHolscher KR II
Weather
Visual (VMC) · Day
Status
Completed · report May 30, 2006
Report
Approved by Office Director
Parties
Seattle FSDO
FAA report
20060108001039A
Case key
63118

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

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

Fuel exhaustion while in cruise flight due to inaccurate fuel quantity indications. Factors included the pilot's failure to positively determine the quantity of fuel onboard the aircraft during preflight, and rough, uneven grassy terrain at the location where the pilot found it necessary to execute the forced landing.

Analysis

About 15 minutes after takeoff, during en route cruise, the aircraft's engine started to run rough and then completely stopped producing power. The pilot then established the aircraft in a descent at best glide speed, and tried to get the engine restarted. When he found that he could not get the engine to restart, the pilot, who at that time was over water, made a 180 degree turn in order to head toward the nearest landing area. He eventually touched down in a rough field, and although the initial touchdown was successful, as the aircraft traveled across the rough field, the nose gear collapsed, and the aircraft nosed over onto its back. A post-accident inspection revealed that the aircraft had run out of useable fuel. In addition, an inspection/test of the fuel system determined that both the electric fuel gauge and the backup fuel level sighting tube were severely miscalibrated, and both indicated the aircraft contained significantly more fuel than was actually present during the test. During the investigation, the pilot said that he had looked in the fuel tank prior to takeoff, but that he did not use a dip stick to confirm how much fuel was actually present. He further stated that based upon what the gauges indicated prior to takeoff, he thought he had enough fuel for more than two hours of flight.

Factual narrative

On January 8, 2006, approximately 1135 Pacific standard time, an experimental Holscher KR II, N395JT, experienced a nose gear collapse during an off-field landing on McNeil Island, Washington. The private pilot, who was the sole occupant, was not injured, but the aircraft, which is owned and operated by the pilot, sustained substantial damage. The 14 CFR Part 91 personal flight, which departed Olympia Regional Airport, Olympia, Washington, about 20 minutes prior to the accident, was en route to Tacoma Narrows Airport, Tacoma, Washington. No flight plan had been filed. There was no report of an ELT activation.

According to the pilot, about 15 minutes after takeoff, during en route cruise, the aircraft's engine started to run rough and then completely stopped producing power. The pilot then established the aircraft in a descent at best glide speed, and tried to get the engine restarted. When he found that he could not get the engine to restart, the pilot, who at that time was over water, made a 180 degree turn in order to head toward the nearest landing area. He eventually touched down in a rough field near the northeast end of McNeil Island. Although the initial touchdown was successful, as the aircraft traveled across the rough field, the nose gear collapsed, and the aircraft nosed over onto its back.

A post- accident inspection by an Airworthiness Inspector from the Seattle Flight Standards District Office (FSDO) revealed that the aircraft had run out of useable fuel. In addition, during a post-crash inspection/test of the fuel system, it was determined that both the electric fuel gauge and the backup fuel level sighting tube were severely miscalibrated, and both indicated the aircraft contained significantly more fuel than was actually present during the test. During the investigation, the pilot said that he had looked in the fuel tank prior to takeoff, but that he did not use a dip stick to confirm how much fuel was actually present. He further stated that based upon what the gauges indicated prior to takeoff, he thought that he had enough fuel for over two hours of flight.

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(total) - nonmechanicalCruise
Fluid,fuel - exhaustionCause
Engine instruments,fuel quantity gage - false indicationCause
Preflight planning/preparation - inadequatePilot in commandFactor
Forced landingEmergency descent/landing
On ground/water encounter with terrain/waterEmergency landing
Terrain condition - rough/unevenFactor
Terrain condition - grassFactor
Nose overEmergency landing

Aircraft

Registration
N395JT
Reported as
Holscher KR II
Category
Airplane, amateur-built
Serial number
001
Airframe hours
150
Engine
Revmaster 2100D, 80 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
William T. Walsh
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Condition · February 1, 1995
Departed
OLM · Olympia, WA
Destination
TIW · Tacoma Narrows, WA

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
33
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Without waivers/limitations
Last flight review
October 1, 2005
Seat
Left
Flight hours
235 total · 45 in this make and model · 173 as pilot in command · 33 in the last 90 days · 17 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
170° at 8 knots
Visibility
10 statute miles
Lowest ceiling
10,000 ft broken

FAA reports on this event · 1

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