WPR20LA310

NTSB accident investigation · Vans RV4 · Clovis, NM · September 19, 2020

Accident · Serious injuriesClass 3 · LimitedFinal report
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.

Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotCoelho James J RV-4: 1 caseAll aircraft: 9,295 casesProbable cause
Performance/control parameters: lateral/bank controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedCoelho James J RV-4: 1 caseAll aircraft: 390 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 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.