DEN85FA017

NTSB accident investigation · Cessna 414 · Cheyenne, WY · October 23, 1984

Accident · Serious injuriesField investigationFinal report
Date
October 23, 1984, 10:16 local (16:16 UTC)
Place
Cheyenne, WY
Injuries
1 serious
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N1569TCessna 414
Weather
Instrument (IMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19841023061659A
Case key
16510

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.

In flight encounter with weatherCircling (ifr)
Weather condition - icing conditionsFactor
In-flight planning/decision - improperPilot in commandFactor
Abrupt maneuverApproach
In-flight planning/decision - improperPilot in commandFactor
Proper descent rate - not performedPilot in commandFactor
Judgment - poorPilot in commandFactor
Loss of control - in flightDescent - uncontrolled
Flight control surfaces/attachments - iceFactor
Airspeed - not maintainedPilot in commandCause
Altitude - not maintainedPilot in commandCause
In flight collision with terrain/waterDescent - uncontrolled

Analysis

The acft collided with the ground during a turn to final from a circling approach (IFR) at Cheyenne airport. According to ATC, the acft was a VFR 'pop up' & was subsequently issued an IFR clearance for an approach into the airport. Examination of the acft at the wreckage site revealed a build-up of mixed rime & clear ice on the eng.

Aircraft

Registration
N1569T
Reported as
Cessna 414
Category
Airplane
Serial number
414-0478
Airframe hours
6,200
Engine
Lycoming TSIO-520NBCJ, 310 horsepower, reciprocating
Damage
Substantial damage
Flight
Business · Part 91
Registered owner
Medicla Air Rescue Co. Inc.
Airworthiness certificate
Standard, Normal
Last inspection
Annual · September 17, 1984 · 14 hours before
Departed
RAP · Rapid City, SD
Destination
CYS · Cheyenne, WY
Flight plan
VFR
Airport
CYS · Cheyenne, runway 34, 4,997 × 150 ft, concrete

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
46
Certificate
Commercial
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
2,838 total · 28 in this make and model · 235 in the last 90 days · 3 in the last 24 hours

Weather

Conditions
Instrument (IMC) · Day
Wind
140° at 8 knots
Visibility
1 statute miles
Lowest ceiling
300 ft broken
Temperature
28 °F, dew point 30 °F
Altimeter
30.00 inHg
Observed at
CYS

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.