LAX86FA221

NTSB accident investigation · Aerospatiale TB20 · Van Nuys, CA · May 17, 1986

Accident · FatalField investigationFinal report
Date
May 17, 1986, 15:30 local (22:30 UTC)
Place
Van Nuys, CA
Injuries
1 fatal
Damage
Destroyed
Phase of flight
Approach
Aircraft
N67TTBAerospatiale TB20
Weather
Visual (VMC) · Day
Status
Completed · report February 3, 1988
Report
Approved by Office Director
Case key
24913

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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Analysis

While in the traffic pattern for rwy 16L the light acft plt was cautioned about possible wake turbulence from an arriving C-130 hercules acft landing on rwy 16R. The light acft plt acknowledged observing the C-130, which was above him. The C-130 landed on rwy 16R without incident. When the light acft was about 1/4 mile north of the arpt it encountered the C-130'S vortex which caused it to roll over inverted and crash. The light acft plt failed to adhere to the warning given by ATC and he failed to adhere to the established vortex avoidance procedures written in the airman's information manual.

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.

Vortex turbulence encounteredApproach - vfr pattern - final approach
Vfr procedures - improperPilot in commandCause
Instructions,written/verbal - not followedPilot in commandCause
Proper glidepath - not maintainedPilot in commandCause
Loss of control - in flightApproach - vfr pattern - final approach
In flight collision with terrain/waterDescent - uncontrolled
Fire/explosionDescent - uncontrolled

Aircraft

Registration
N67TTB
Reported as
Aerospatiale TB20
Category
Airplane
Serial number
535
Airframe hours
73
Engine
Lycoming IO-540-C4D5D, 250 horsepower, reciprocating
Damage
Destroyed
Fire
On-Ground
Flight
Personal · Part 91
Operator
Van Nuys Aero Club, Inc, doing business as Beech Aero Club
Registered owner
Trinidad Distributing Corp.
Airworthiness certificate
Standard, Normal
Last inspection
Annual · February 4, 1986 · 69 hours before
Destination
VNY · Van Nuys, CA
Airport
VNY · Van Nuys, runway 16L, 4,000 × 75 ft

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
37
Certificates
Flight instructor, Commercial
Airplane ratings
Single-engine land
Medical
Class 2, Valid Medical--w/ waivers/lim
Toxicology
Performed

Weather

Conditions
Visual (VMC) · Day
Wind
Variable at 10 knots
Visibility
15 statute miles
Lowest ceiling
None
Temperature
91 °F, dew point 48 °F
Altimeter
29.00 inHg
Observed at
VNY, 1 nm away