FTW84FA047

NTSB accident investigation · Aero Commander 520 · Clines Corners, NM · November 9, 1983

Accident · FatalField investigationFinal report
Date
November 8, 1983, 20:18 local (Nov 9, 1983, 03:18 UTC)
Place
Clines Corners, NM
Injuries
2 fatal
Damage
Destroyed
Phase of flight
Enroute
Aircraft
N4116BAero Commander 520
Weather
Instrument (IMC) · Night/dark
Status
Completed
Report
Approved by Office Director
FAA report
19831108059459A
Case key
21079

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

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.

In flight encounter with weatherCruise - normal
Flight into known adverse weather - initiatedPilot in commandFactor
Light condition - dark nightFactor
Weather condition - low ceilingFactor
Weather condition - high windFactor
Weather condition - rainFactor
Vfr flight into imc - continuedPilot in commandCause
Loss of control - in flightCruise
Aircraft handling - not maintainedPilot in commandCause
Spatial disorientationPilot in commandCause
Lack of total instrument timePilot in commandFactor
In flight collision with terrain/waterDescent - uncontrolled

Analysis

The non-instrument rated plt was on ferry flt from bartlesville, ok to ontario, CA. An en route stop was made at tucumcari, NM, where the acft was refueled & 14 qts of oil was added to the left eng. The line boy who serviced the acft saw no visible oil leaks or spillage around the eng. While on the next leg of the flt, the acft crashed near interstate highway 40. Two witnesses that saw the crash stated rain was falling, the wind was blowing very strong & there were low ceilings. Reportedly, a squall line was moving thru the area & there was moderate to severe turbulence. An exam of the wreckage revealed the acft had crashed in a steep nose down attitude, with 20 to 30 deg left bank & at high speed. No preimpact, mechanical failures were found & both engs had evidence that they were operating during impact. The wx briefer said the plt indicated he would fly around the area of precipitation & remain VFR. Radar info showed the plt had been following the interstate highway & varying his alt between 7900 & 6300 ft MSL.

Aircraft

Registration
N4116B
Reported as
Aero Commander 520
Category
Airplane
Serial number
520-20
Engine
Lycoming GO-435-C2B, 260 horsepower, reciprocating
Damage
Destroyed
Flight
Ferry · Part 91
Registered owner
Raymond M. Tolles
Airworthiness certificate
Special, Special flight (Special)
Departed
TCC · Tucumcari, NM
Destination
TUS · Tucson, AZ

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
Certificate
Private
Airplane ratings
Multi-engine land, Single-engine land
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Left
Toxicology
Performed
Flight hours
625 total · 95 in this make and model

Weather

Conditions
Instrument (IMC) · Night/dark
Altimeter
29.00 inHg
Observed at
TCC, 91 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.