- Date
- June 21, 2021, 19:08 local (Jun 22, 2021, 01:08 UTC)
- Place
- Nampa, ID · open field, near airport
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Approach
- Aircraft
- N8010BBolstridge Wallace R SKY Raider 1
- Defining event
- Approach-VFR pattern downwind: Loss of engine power (total)
- Weather
- Visual (VMC) · Day
- Status
- Completed
- Report
- Approved by Office Director
- Investigation class
- Class 4 - Basic report with no Prelim publish
- NTSB office
- Western Pacific Region
- Parties
- FAA
- FAA report
- 20210621008069A
- Case key
- 103310
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
A total loss of engine power due to the pilot’s failure to premix the two-cycle oil/gasoline mixture, which resulted in a forced landing in a field and collision with terrain.
Findings · 2
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.
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 reported that, during preflight, he added five gallons of gasoline into the airplane’s fuel tank. He also measured out the two-cycle engine oil that was to be premixed with the gasoline then set it aside. Shortly after takeoff, and while in the traffic pattern, the engine lost power. The pilot initiated a forced landing in an open field, where the airplane impacted tall grass and nosed over, substantially damaged the left wing. Upon returning to the hangar, the pilot saw the oil he had set aside and realized that it was not added to the gasoline. The pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation.
Aircraft
- Registration
- N8010B
- Reported as
- Bolstridge Wallace R SKY Raider 1
- Category
- Airplane, amateur-built
- Serial number
- 6139425
- Built
- 2000
- Engine
- Rotax 447, 40 hp, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Operator
- Mighuel Hurtado-Tamauo
- Registered owner
- Bolstridge Wallace R
- Airworthiness certificate
- Special, Experimental (Special)
- Destination
- Same as departure
- Airport
- MAN · Nampa Muni, runway 29, 5,000 × 75 ft, asphalt
- Equipment
- Unknown
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
- 51
- Injuries
- None
- Certificate
- Student
- Seat
- Single
- Restraint
- 4-point
- Flight hours
- 500 total · 10 in this make and model · 45 as pilot in command
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 150° at 5 knots
- Visibility
- 10 statute miles
- Temperature
- 66 °F, dew point 48 °F
- Altimeter
- 30.01 inHg
- Observed at
- KMAN, 1 nm away
- METAR
- KMAN 211315Z AUTO 15005KT 10SM 19/09 A3001 RMK A01
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.