SEA87MA018

NTSB accident investigation · Cessna 401 · Henderson, NV · November 6, 1986

Accident · FatalMajor investigationFinal report
Date
November 6, 1986, 01:44 local (09:44 UTC)
Place
Henderson, NV
Injuries
2 fatal
Damage
Destroyed
Phase of flight
Enroute
Aircraft
N3219QCessna 401
Weather
Visual (VMC) · Night/bright
Status
Completed
Report
Approved by Office Director
FAA report
19861106056989A
Case key
40703

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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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.

ExplosionClimb - to cruise
Fluid,fuel - fumesCause
Wing - explodedFactor
FireManeuvering - turn to reverse direction
Engine assembly - fireCause
Loss of control - in flightDescent - emergency
Airspeed - inadequatePilot in commandCause
Anxiety/apprehensionPilot in commandFactor
Gear extension - prematurePilot in commandFactor
In flight collision with terrain/waterDescent - uncontrolled
Remedial action - not possiblePilot in commandFactor

Analysis

Approximately 5 1/2 minutes after departure and while the aircraft was climbing enroute, an unknown ignition source triggered an explosion of fuel/air vapor which existed within the interior of the left wing. Wing skin from the upper/lower wing surface was lost, however, the wing structure remained integral and the pilots continued to fly the aircraft executing a 180 degree course reversal back to mccarran intnl airport. Subsequent to the explosion a fire developed within the left engine area. As the aircraft continued back towards mccarran the airspeed gradually diminished and the landing gear were lowered. Shortly thereafter the left wing entered a stall condition brought about by a decrease of airspeed as well as the degradation of its lift developing capabilities due to the explosion induced damage. The aircraft then entered an uncontrollable left roll several hundred feet above ground from which a successful recovery could not be executed.

Aircraft

Registration
N3219Q
Reported as
Cessna 401
Category
Airplane
Serial number
4010019
Airframe hours
5,083
Engine
Continental TSIO-520-E, 300 horsepower, reciprocating
Damage
Destroyed
Fire
Both
Flight
Part 135
Registered owner
Wayne L. South
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · November 3, 1986 · 14 hours before
Departed
LAS · Las Vegas, NM
Destination
ABQ · Albuquerque, NM
Flight plan
VFR

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
24
Certificate
Airline transport
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
2,700 total · 17 in this make and model · 56 in the last 90 days · 3 in the last 24 hours

Weather

Conditions
Visual (VMC) · Night/bright
Wind
260° at 5 knots
Visibility
15 statute miles
Lowest ceiling
None
Temperature
50 °F, dew point 25 °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.