LAX83FA446

NTSB accident investigation · Mortensen Lombard DILLEY-68 · Sun Valley, NV · September 17, 1983

Accident · Minor injuriesField investigationFinal report
Date
September 17, 1983, 11:15 local (18:15 UTC)
Place
Sun Valley, NV
Injuries
1 minor
Damage
Destroyed
Phase of flight
Maneuvering
Aircraft
N301LSMortensen Lombard DILLEY-68
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19830917050159A
Case key
23511

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.

Loss of control - in flightManeuvering
Stall - inadvertentPilot in commandCause
In flight collision with terrain/waterManeuvering

Analysis

The plt was one of several competing in a pylon air race during the reno national air races. The acft were approaching the first pylon in a steep left bank. According to the plt, another acft pulled in front of him, & while attempting to avoid a collision at about 200 mph, & with only 35 ft of altitude, the acft stalled & crashed.

Aircraft

Registration
N301LS
Reported as
Mortensen Lombard DILLEY-68 (LOMBARD DI)
Category
Airplane, amateur-built
Serial number
1
Airframe hours
26
Engine
Lycoming IO-320-A2B, 150 horsepower, reciprocating
Damage
Destroyed
Flight
Part 91
Registered owner
Ams/Air Corp.
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Unknown · September 11, 1983 · 5 hours before
Airport
4SD · Reno-Stead

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
37
Certificates
Airline transport, Flight instructor
Airplane ratings
Single-engine land, Single-engine sea, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--w/ waivers/lim
Seat
Center
Flight hours
1,944 total · 250 in this make and model · 1,703 as pilot in command · 20 in the last 90 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
240° at 20 knots
Visibility
40 statute miles
Lowest ceiling
None
Temperature
81 °F, dew point 45 °F
Altimeter
30.00 inHg
Observed at
RNO, 12 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 N301LS · 1

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