LAX94LA275

NTSB accident investigation · Mooney M20C · Las Vegas, NV · July 5, 1994

Accident · Serious injuriesLimited investigationFinal report
Date
July 5, 1994, 09:00 local (16:00 UTC)
Place
Las Vegas, NV
Injuries
1 serious
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N6959UMooney M20C
Weather
Visual (VMC) · Day
Status
Completed · report November 14, 1994
Report
Approved by Office Director
FAA report
19940705017299A
Case key
28790

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 failure of the pilot to obtain the proper takeoff speed. Factors are the high density altitude and the crosswind.

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 encounter with terrain/waterTakeoff - roll/run
Terrain condition - loose gravel/sandy
Weather condition - high density altitudeFactor
Weather condition - crosswindFactor
Preflight planning/preparation - improperPilot in commandCause
Airspeed(vlof) - not attainedPilot in commandCause
Terrain condition - dirt bank/rising embankment

Analysis

The pilot attempted a takeoff from a 2100 foot gravel runway with a density altitude of about 4200 feet and a cross wind from the left at 12 knots. The aircraft did not get airborne and collided with a dirt embankment past the departure end of the runway. The pilot reported no mechanical problems with the aircraft which had just come out of an annual inspection.

Factual narrative

On July 5, 1994, at 0900 hours Pacific daylight time , a Mooney M20C, N6959U, collided with terrain during a takeoff attempt at Voc Tech Airport at Las Vegas, Nevada. The aircraft was operated by the pilot/owner, and was involved in a personal flight. The aircraft was substantially damaged. The certificated commercial pilot, the sole occupant, sustained serious injuries. Visual meteorological conditions prevailed at the time and no flight plan was filed.

According to the Federal Aviation Administration, the airplane was signed off for its annual inspection on the day of the accident. Witnesses reported seeing the aircraft hop along the runway but did not get airborne. The aircraft departed the end of a 2100 foot long gravel runway, which is oriented east to west.

The reported weather conditions were clear with a temperature of 87 degrees fahrenheit, and winds from 170 degrees at 12 knots. The air traffic controller advised the pilot that the departure would be at his own risk, and the east boundary winds at McCarran were calm.

The pilot reported no mechanical problems.

Aircraft

Registration
N6959U
Reported as
Mooney M20C
Category
Airplane
Serial number
2710
Airframe hours
3,300
Engine
Lycoming O-360-A1D, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Cassel, John F.
Registered owner
Cassel, John F.
Airworthiness certificate
Standard, Normal
Last inspection
Annual · July 5, 1994 · 1 hours before
Airport
NV26 · Voc Tech

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
42
Certificates
Airline transport, Flight engineer
Airplane ratings
Multi-engine land, Single-engine sea
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
12,015 total · 240 in this make and model · 4,207 as pilot in command · 40 in the last 90 days · 15 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
170° at 12 knots
Visibility
50 statute miles
Lowest ceiling
None
Temperature
88 °F, dew point 34 °F
Altimeter
29.00 inHg
Observed at
LAS, 4 nm away

FAA reports on this event · 1

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

Other investigations on N6959U · 1

Matched to the same aircraft by N-number and date.