LAX01LA141

NTSB accident investigation · Motley Vans RV-6A · Baker, CA · April 28, 2001

Accident · FatalLimited investigationFinal report
Date
April 28, 2001, 14:05 local (21:05 UTC)
Place
Baker, CA
Injuries
1 fatal
Damage
Destroyed
Phase of flight
Maneuvering
Aircraft
N51DAMotley Vans RV-6A
Weather
Visual (VMC) · Day
Status
Completed · report November 25, 2003
Report
Approved by Office Director
Parties
Federal Aviation Administration
FAA report
20010428007909A
Case key
52034

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

The pilot's failure to maintain an adequate airspeed while maneuvering at low altitude, which led to an inadvertent stall/spin. The wind gusts were a factor.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Loss of control - in flightManeuvering
Weather condition - gustsFactor
Low altitude flight/maneuver - intentionalPilot in command
Airspeed - not maintainedPilot in commandCause
Stall/spin - inadvertentPilot in commandCause
In flight collision with terrain/waterDescent - uncontrolled
Terrain condition - ground

Analysis

The pilot lost control of the airplane while maneuvering at low altitude and the airplane descended to ground impact. The pilot was to overfly his son, who was at a remote ranch retreat, so that the son would know to pick him up at the local airport. The airplane flew over the retreat one time and the pilot made radio contact with his son. The pilot was attempting a second pass and he told his son that he could not fly close to the mountains due to the high winds. The pilot did not report any difficulties or performance abnormalities to the son. The son said that as the airplane passed over, it rolled to the left, and then sharply to the right before descending to the ground. Winds at the time of the accident were gusting up to 24 knots at Barstow, California, located approximately 50 miles away.

Factual narrative

On April 28, 2001, about 1405 Pacific daylight time, a Motley Vans RV-6A, N51DA, was destroyed when it collided with terrain about 14 miles west of Baker, California. The private pilot/owner was operating the airplane under the provisions of 14 CFR Part 91. The pilot sustained fatal injuries. The personal cross-country flight departed Chino, California, at an unknown time. Visual meteorological conditions prevailed, and no flight plan had been filed. The primary wreckage was at 35 degrees 11.84 minutes north latitude and 116 degrees 04.68 minutes west longitude.

A sheriff's deputy interviewed the pilot's son. The pilot delayed his departure from Chino due to weather. He was to overfly the son at a ranch retreat so the son would know to pick him up at Baker. The pilot flew over the ranch one time and made radio contact with his son. The pilot was attempting a second pass and he told his son that he could not fly close to the mountains due to the high winds. The son said that as the airplane passed over, it rolled to the left, and then sharply to the right before descending to the ground.

The Federal Aviation Administration (FAA) accident coordinator inspected the wreckage at the accident scene. He observed a ground scar that was about 2-feet long. The wreckage covered an area about 50 yards in diameter. The wreckage site contained all of the control surfaces and flight control continuity could not be determined due to impact damage. The leading edges of both wings were crushed aft, and both of the propeller blades exhibited S-bends.

A toxicology exam was completed at the FAA Civil Aeromedical Institute (CAMI), Oklahoma City, Oklahoma. The results were positive for Ethanol, Acetaldehyde and N-Propanol, which were detected in kidney tissue samples. No Ethanol was detected in the muscle tissue submitted. The toxicology report notes that the ethanol found may potentially be from postmortem ethanol formation and not from the ingestion of ethanol.

The unedited surface weather observation (METAR) for Daggett Field (DAG), Barstow, California reported gusty wind conditions up to 24 knots at the time of the accident. Barstow was located approximately 50 miles from the accident site.

A review of maintenance records for the airplane revealed that an inspection was completed in accordance with 14 CFR Part 43, Appendix D, on December 18, 2000.

Aircraft

Registration
N51DA
Reported as
Motley Vans RV-6A
Category
Airplane, amateur-built
Serial number
24195
Airframe hours
307
Engine
Lycoming O-360-A1A, 180 hp, reciprocating
Damage
Destroyed
Flight
Personal · Part 91
Registered owner
David M. Motley
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · December 18, 2000
Departed
CNO · Chino, CA
Destination
0O2 · Baker, CA

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
71
Injuries
Fatal
Certificate
Private
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Toxicology
Performed
Flight hours
950 total

Weather

Conditions
Visual (VMC) · Day
Wind
270° at 18 knots, gusting 24
Visibility
10 statute miles
Lowest ceiling
None
Temperature
88 °F, dew point 28 °F
Altimeter
29.80 inHg
Observed at
DAG, 50 nm away

Docket · 8

The files NTSB released with the investigation on September 26, 2003, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.4 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.