WPR09CA181

NTSB accident investigation · Max A Boesiger Jr Pulsar · Riddle, ID · April 6, 2009

Accident · No injuriesData collectionFinal report
Date
April 5, 2009, 22:45 local (Apr 6, 2009, 04:45 UTC)
Place
Riddle, ID
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N610RJMax A Boesiger Jr Pulsar
Defining event
Enroute-cruise: Fuel exhaustion
Weather
Visual (VMC) · Night
Status
Completed · report June 22, 2009
Report
Approved by Office Director
NTSB office
Western Pacific Region
Parties
Federal Aviation Administration FSDO
FAA report
20090405003729A
Case key
73605

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

A loss of engine power due to fuel exhaustion as a result of the pilot's becoming lost and disoriented. Contributing to the accident was fatigue, as reported by the pilot.

Findings · 4

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Light condition: darkEnvironmental issues › Conditions/weather/phenomena · Contributed to outcomeBoesiger Max A JR PULSAR: 1 caseAll aircraft: 448 cases
Fluids: fuelAircraft › Fluids/misc hardware · Fluid levelBoesiger Max A JR PULSAR: 1 caseAll aircraft: 1,695 casesProbable cause
Alertness/FatiguePersonnel issues › Physical · PilotBoesiger Max A JR PULSAR: 1 caseAll aircraft: 48 casesProbable cause

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

The pilot made a 1 hour 20 minute flight to a private strip in the morning, and expected to be working there for a few hours. His work ended up lasting all day, and he did not depart until sundown. He stated that he was very tired and anxious to get home. His panel-mounted global positioning satellite system (GPS) was not internally lit, and after getting airborne he discovered that a flashlight that he kept in the airplane for this purpose did not work. Rather than return to the departure airport for another light, he decided to travel north until he intersected Interstate 84, where he could turn west and follow it home. He saw an intersection approaching, turned west, and gave no further thought to navigation. He was 5,000 feet above ground level (agl) and stated that he could not be sure that this was the proper highway to follow. He noted that he was so tired that he forgot that he had a handheld GPS in his backpack that was internally lit. He noticed that the highway turned south, so he continued west thinking that he would pick it up again when it turned back to the north. About 30 minutes later, the pilot realized that he had been following the wrong road. He became very disoriented and turned north attempting to locate a town that he could recognize. He then used his cell phone to light up the face of the panel-mounted GPS, discovered that he was 150 miles from Boise, Idaho, and turned toward it. About 10 minutes later, he realized that he did not have enough fuel to make it to Boise or even the next closest airport. He continued on toward Boise hoping that he would find a road or clear place to land. At an altitude of 4,000 feet agl, the engine lost power. He saw no traffic on any road to help find a landing spot. He was in an extremely remote area and only saw three lights on the ground that were about 1/2-mile apart. He landed on rough terrain near a house, and all three landing gear sheared off at touchdown.

Factual narrative

The pilot made a 1 hour 20 minute flight to a private strip in the morning, and expected to be working there for a few hours. His work ended up lasting all day, and he did not depart until sundown. He stated that he was very tired and anxious to get home. His panel mounted global positioning satellite system (GPS) was not internally lit, and after getting airborne he discovered that a flashlight that he kept in the airplane for this purpose did not work. Rather than return to the departure airport for another light, he decided to travel north until he intersected Interstate 84, where he could turn west and follow it home. He saw the intersection approaching, turned west, and gave no further thought to navigation. He was 5,000 feet above ground level (agl), and stated that he could not be sure that this was the proper highway to follow. He noted that he was so tired that he forgot that he had a handheld GPS in his backpack that was internally lit. He noticed that the highway turned south, so he continued west thinking that he would pick it up again when it turned back to the north. About 30 minutes later, the pilot realized that he had been following the wrong road. He became very disoriented and turned north attempting to locate a town that he could recognize. He then used his cell phone to light up the face of the panel mounted GPS, discovered that he was 150 miles from Boise, Idaho, and turned toward it. About 10 minutes later, he realized that he did not have enough fuel to make it to Boise. A quick check revealed that he did not have enough fuel to make it to Wells, Nevada, which was the next closest airport. He continued on toward Boise hoping that he would find a road or clear place to land. At an altitude of 4,000 feet agl, the engine lost power. He saw no traffic on any road to help find a landing spot. He was in an extremely remote area, and only saw three lights on the ground that were about 1/2 mile apart. During the descent, he reminded himself repeatedly to maintain 15 miles per hour above the stall speed, and fly it to the ground rather than stall. Prior to landing, he had just enough airspeed to dodge a power pole and overhead power lines just seconds before he was about to collide with them. He land on rough terrain near a house, and all three landing gear sheared off at touchdown. The airplane slid about 100 feet before colliding with an old shed near the house. He walked about 50 feet to the house, but no one was home, so he walked to the next home 1/2-mile away to report the accident.

Aircraft

Registration
N610RJ
Reported as
Max A Boesiger Jr Pulsar
Category
Airplane, amateur-built
Serial number
P97060632
Airframe hours
350
Engine
Rotax 912S, 115 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Max A Boesiger, Jr
Registered owner
Max A Boesiger, Jr
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Condition · February 1, 2009 · 5 hours before
Departed
Lucine, UT
Destination
UEL · Caldwell, 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
58
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, With waivers/limitations
Last flight review
January 29, 2009
Seat
Left
Flight hours
424 total · 324 in this make and model · 424 as pilot in command · 4 in the last 90 days · 3 in the last 30 days

Weather

Conditions
Visual (VMC) · Night
Wind
90° at 10 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
41 °F, dew point 23 °F
Altimeter
30.00 inHg
Observed at
KTWF, 89 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.