LAX93LA362

NTSB accident investigation · Ercoupe 415-C · Twentynine Palm, CA · September 21, 1993

Accident · Minor injuriesLimited investigationFinal report
Date
September 21, 1993, 02:00 local (09:00 UTC)
Place
Twentynine Palm, CA
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N93321Ercoupe 415-C
Weather
Visual (VMC) · Night/bright
Status
Completed · report September 27, 1994
Report
Approved by Office Director
FAA report
19930921035929A
Case key
28483

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 attemted takeoff from a taxiway due to alcoholic impairment. The night light condition was 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.

On ground/water collision with objectTakeoff - roll/run
Light condition - bright nightFactor
Unsuitable terrain or takeoff/landing/taxi area - selectedPilot in commandCause
Impairment(alcohol)Pilot in commandCause

Analysis

The pilot had landed to deplane a passenger. He then attempted to take off from a taxiway and collided with a ditch. The pilot's blood alcohol level was 0.10%.

Factual narrative

On September 21, 1993, at 0200 hours Pacific daylight time, an Ercoupe 415-C, N93321, collided with a ditch during the takeoff roll from the west taxiway at Twentynine Palms Marine Corps Air Station (MCAS), Twentynine Palms, California. The pilot was conducting a visual flight rules personal flight to Bullhead City, Arizona. The airplane, registered to and operated by the pilot, sustained substantial damage. The certificated private pilot, the sole occupant, sustained minor injuries. Visual meteorological conditions prevailed. The flight originated at Apple Valley Airport, Apple Valley, California, at 0005 hours.

The FAA reported the pilot landed to let his passenger, who was intoxicated, out of the plane. The pilot, who was also intoxicated, attempted a takeoff from the west taxiway. The airplane collided with a ditch and collapsed the landing gear, damaging the engine and wings.

The Naval hospital reported the pilot had a 0.10% blood alcohol level. Federal regulations state that a 0.04% blood alcohol level is the maximum allowed for flight and that no person may operate an aircraft within 8 hours after drinking any alcoholic beverages.

The pilot reported in the Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1/2, that while enroute to Bullhead City he became disoriented and made a precautionary landing at Twentynine Palms MCAS. He then stated that during the takeoff the airplane struck a mound of dirt.

Aircraft

Registration
N93321
Reported as
Ercoupe 415-C
Category
Airplane
Serial number
644
Airframe hours
2,055
Engine
Continental C-85, 85 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Drew, Keith E.
Airworthiness certificate
Standard, Normal
Last inspection
Annual · April 1, 1993 · 62 hours before
Departed
EAF
Destination
PO6 · Bullhead City, AZ
Airport
EAF · Twentynine Palms Mcas

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
50
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Toxicology
Performed
Flight hours
700 total · 490 in this make and model · 570 as pilot in command · 40 in the last 90 days · 20 in the last 30 days

Weather

Conditions
Visual (VMC) · Night/bright
Wind
270° at 5 knots
Visibility
50 statute miles
Lowest ceiling
None
Temperature
57 °F
Observed at
EAF

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.