SEA95LA005

NTSB accident investigation · Larsen Avid Heavy Hauler · Nampa, ID · October 8, 1994

Accident · Minor injuriesLimited investigationFinal report
Date
October 8, 1994, 10:30 local (16:30 UTC)
Place
Nampa, ID
Injuries
2 minor
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N21LJLarsen Avid Heavy Hauler
Weather
Visual (VMC) · Day
Status
Completed · report June 19, 1995
Report
Approved by Office Director
FAA report
19941008037729A
Case key
42077

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.

Loss of engine power for undetermined reasons and the lack of suitable terrain for the forced landing.

Analysis

The pilot stated that the engine lost power during climb out. After failed attempts to re-start the engine, the pilot was forced to land in a rough field. During the landing, the airplane was substantially damaged. An examination of the wreckage revealed that the engine had fuel in it and no pre- impact mechanical malfunctions were found.

Factual narrative

On October 8, 1994, about 1030 hours mountain daylight time, N21LJ, a Larsen Avid Heavy Hauler home built airplane, operated by the owner/pilot, was substantially damaged during a forced landing in Nampa, Idaho. The forced landing was precipitated by a loss of engine power during climb. The private pilot and his passenger received minor injuries. Visual meteorological conditions prevailed and a flight plan was not filed. The personal flight departed from Nampa and was conducted under 14 CFR 91.

The pilot stated that the engine failed about 250 feet above the ground while on climbout after takeoff from the Nampa Municipal Airport. The pilot attempted to re-start the engine, but to no avail. The pilot stated that he then was forced to land in a rough field located about one mile from the airport. The airplane impacted the rough field and was substantially damaged.

The wreckage was examined at the accident site by an FAA Aviation Safety Inspector from Boise, Idaho. According to the inspector, fuel was found in both wings and both engine carburetor float bowls. No evidence of fuel contamination was found. Oil was found in the oil injectors. The ignition system was functionally tested via the starter and spark plugs with no abnormalities noted. The Rotax engine was rotated by hand; it was free to turn with no internal stoppage noted. No pre-impact mechanical malfunctions were found during the examination of the airframe and engine.

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 powerTakeoff - initial climb
Reason for occurrence undeterminedCause
Forced landingEmergency descent/landing
In flight collision with terrain/waterEmergency descent/landing
Terrain condition - none suitableCause

Aircraft

Registration
N21LJ
Reported as
Larsen Avid Heavy Hauler (AVID HEAVY)
Category
Airplane, amateur-built
Serial number
910
Airframe hours
301
Engine
Rotax 582UL, 65 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Larsen, John M.
Airworthiness certificate
Special, Experimental (Special)
Last inspection
AAIP · October 6, 1994 · 1 hours before
Departed
S67 · ID

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
59
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
311 total · 198 in this make and model · 213 as pilot in command · 15 in the last 90 days · 1 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
110° at 15 knots
Visibility
45 statute miles
Lowest ceiling
None
Temperature
61 °F, dew point 30 °F
Altimeter
30.00 inHg
Observed at
BOI, 14 nm away

FAA reports on this event · 1

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