DEN85FA240

NTSB accident investigation · Aero Commander 680FL · Fort Collins, CO · September 12, 1985

Accident · FatalField investigationFinal report
Date
September 12, 1985, 00:20 local (06:20 UTC)
Place
Fort Collins, CO
Injuries
1 fatal
Damage
Destroyed
Phase of flight
Enroute
Aircraft
N45724Aero Commander 680FL
Weather
Visual (VMC) · Night/dark
Status
Completed
Report
Approved by Office Director
FAA report
19850912048519A
Case key
16558

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 flightClimb - to cruise
Light condition - dark night
Reason for occurrence undeterminedCause
Weather condition - turbulence
In flight collision with terrain/waterDescent - uncontrolled
Reason for occurrence undetermined

Analysis

The plt was operating his acft under the rules of 14 CFR 135, I.e., a scheduled domestic cargo flt. He made a normal departure and climb en route to salt lake city, Utah. Normal communications and radar flt following was established with denver ARTCC. Approximately 8 miles west of Fort Collins, the acft suddenly disappeared off of radar and voice contact with the pilot was lost.

Aircraft

Registration
N45724
Reported as
Aero Commander 680FL
Category
Airplane
Serial number
680FL1291Z
Airframe hours
9,535
Engine
Lycoming IGSO-540-B1A, 380 horsepower, reciprocating
Damage
Destroyed
Fire
On-Ground
Flight
Part 135
Registered owner
Inter American Leasing Co.
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · August 9, 1985 · 96 hours before
Departed
FCL · Fort Collins, CO
Destination
SLC · Salt Lake City, UT
Flight plan
IFR

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
36
Certificates
Commercial, Flight instructor
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
3,554 total · 43 in this make and model · 3,426 as pilot in command · 32 in the last 90 days · 6 in the last 24 hours

Weather

Conditions
Visual (VMC) · Night/dark
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
4,000 ft broken
Temperature
61 °F, dew point 59 °F
Observed at
FCL, 8 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.