- Date
- September 19, 2020, 09:30 local (15:30 UTC)
- Place
- Clovis, NM
- Injuries
- 1 serious
- Damage
- Substantial damage
- Phase of flight
- Initial climb
- Aircraft
- N250LBVans RV4
- Defining event
- Initial climb: Loss of control in flight
- Weather
- Visual (VMC) · Day
- Status
- Completed
- Report
- Approved by Office Director
- Investigation class
- Class 3
- NTSB office
- Western Pacific Region
- Parties
- Federal Aviation Administration
- FAA report
- 20200919012309A
- Case key
- 101993
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 failure to maintain lateral control during initial climb due to distraction, which resulted in an in-flight upset and impact with terrain.
Findings · 3
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 was departing from an airport when the accident occurred. During the initial climb, he became momentarily distracted when his mobile phone rang. He looked down at the phone, which was on the floor, and within 2 seconds, the airplane had rolled inverted. At this time, the pilot looked outside the cockpit and became aware of the inflight upset. He immediately recovered the airplane into an upright attitude, but the airplane impacted the ground, nosed over, and came to rest inverted. The pilot reported no preimpact mechanical anomalies or malfunctions that could have precluded normal operation.
Factual narrative
On September 19, 2020, at 0945 mountain daylight time, an experimental amateur-built Vans RV-4 airplane, N250LB, was substantially damaged when it was involved in an accident near Clovis, New Mexico. The pilot was seriously injured. The airplane was operated as a Title 14 Code of Federal Regulations Part 91 personal flight. The pilot, who was interviewed about a month after the accident due to his injuries, reported that he planned a normal departure from an airport he frequently departed from when the accident occurred. Shortly after takeoff and during the initial climb phase of the flight, he received a phone call on his mobile phone, which was on the floor by his feet. He was momentary distracted as he looked down to read the caller’s name on the phone. About 2 seconds later, he looked outside the cockpit and discovered that the airplane was inverted. The pilot immediately rolled the airplane into an upright, level attitude just before the wheels impacted the ground. He was unable to recall any further events. The pilot reported no preimpact mechanical malfunctions that could have precluded normal operation. According to a witness, the airplane began a ground roll to the south into the wind. The airplane lifted off the ground about midfield and immediately transitioned into a climb. As it reached about 100 ft above ground level, the airplane rolled to the right until it was inverted and then disappeared from the witness’ view. The witness reported that the engine sounded smooth and continuous during the accident flight. The airplane came to rest inverted about 800 ft beyond the end of the departure runway. Photographs furnished by the witness showed substantial damage to the fuselage and wings.
Aircraft
- Registration
- N250LB
- Reported as
- Vans RV4
- Category
- Airplane, amateur-built
- Serial number
- 77-3889
- Built
- 1998
- Airframe hours
- 1,095.8
- Engine
- Lycoming engines IO-540-EXP, 265 hp, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Operator
- Bishop Ag Air LLC
- Airworthiness certificate
- Special, Experimental (Special)
- Last inspection
- Condition · February 27, 2020 · 100 hours before
- Departed
- NM42 · Clovis, NM
- Destination
- HBZ · Heber Springs, AR
- Airport
- NM42 · Aero Tech Inc. Airport, runway 18, 2,640 × 148 ft, grass/turf
- Equipment
- Electronic primary flight display, Onboard weather, ADS-B, Auto-pilot, 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
- 56
- Injuries
- Serious
- Certificate
- Commercial
- Airplane ratings
- Multi-engine land, Single-engine land
- Instrument ratings
- Airplane
- Medical
- Class 2, Unknown
- Last flight review
- July 6, 2019
- Seat
- Center
- Restraint
- Lap only
- Flight hours
- 22,000 total · 600 in this make and model · 21,000 as pilot in command · 300 in the last 90 days · 100 in the last 30 days · 4 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 210° at 11 knots
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 66 °F, dew point 48 °F
- Altimeter
- 30.31 inHg
- Observed at
- KCVN, 3 nm away
- METAR
- KCVN 191556Z AUTO 21011KT 10SM CLR 19/09 A3031 RMK AO2 SLP235 T01940089
Docket · 4
The files NTSB released with the investigation on July 8, 2022, on NTSB’s docket system: statements, records, photos and specialists’ reports. 7.0 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.