- Date
- October 9, 2022, 11:20 local (16:20 UTC)
- Place
- Stanwood, IA
- Injuries
- 1 minor
- Damage
- Substantial damage
- Phase of flight
- Maneuvering
- Aircraft
- N181MYYates Mike E Roaring Eagle
- Defining event
- Maneuvering: Loss of engine power (partial)
- Weather
- Visual (VMC) · Day
- Status
- Completed
- Report
- Approved by Office Director
- Investigation class
- Class 4 - Basic report with no Prelim publish
- NTSB office
- Central Region
- Parties
- FAA
- FAA report
- 20221009017359A
- Case key
- 106093
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
The pilot’s exceedance of the airplane’s critical angle of attack in the traffic pattern, which resulted in an aerodynamic stall and loss of airplane control at too low of an altitude to recover. Contributing to the accident was the partial loss of engine power due to improper management of the fuel system.
Findings · 5
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 he was performing a test flight in the experimental airplane after completing a modification to the pitch control system. While on downwind to land at the private airstrip, the engine lost partial power. During the base to final turn, about 300 ft above ground level, the airplane exceeded its critical angle of attack, which resulted in an aerodynamic stall and loss of airplane control at an altitude too low to allow for recovery. The airplane impacted a cornfield short of the private airstrip and sustained substantial damage to the fuselage and both wings. The pilot reported that there were no preimpact mechanical malfunctions or failures that would have precluded normal operation. The pilot stated that the partial loss of engine power was due to an excessive fuel pressure to the carburetor because he forgot to open a valve that bypassed fuel around the fuel pump that is used for engine priming and starting.
Aircraft
- Registration
- N181MY
- Reported as
- Yates Mike E Roaring Eagle
- Category
- Airplane, amateur-built
- Serial number
- MB5137
- Built
- 2020
- Airframe hours
- 11.5
- Engine
- Lycoming O-320-E2D, 150 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Airworthiness certificate
- Special, Experimental (Special)
- Last inspection
- Condition · May 20, 2022
- Destination
- Same as departure
- Airport
- PVT · Pvt
- Equipment
- ADS-B, Electronic primary flight display, Electronic multifunction display
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
- 67
- Injuries
- Minor
- Certificate
- Private
- Airplane ratings
- Single-engine land
- Medical
- Class 3, With waivers/limitations
- Last flight review
- August 22, 2022
- Seat
- Left
- Restraint
- Lap only
- Flight hours
- 515 total · 11 in this make and model · 450 as pilot in command · 1 in the last 90 days · 1 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 230° at 7 knots
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 66 °F, dew point 37 °F
- Altimeter
- 30.12 inHg
- Observed at
- KCID, 26 nm away
- METAR
- KCID 091652Z 23007KT 10SM CLR 19/03 A3012 RMK AO2 SLP201 T01890033
Docket · 4
The files NTSB released with the investigation on June 7, 2023, on NTSB’s docket system: statements, records, photos and specialists’ reports. 5.4 MB in all.
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.