DEN88FA014

NTSB accident investigation · Cessna 340A · Bailey, CO · October 21, 1987

Accident · FatalField investigationFinal report
Date
October 21, 1987, 11:35 local (17:35 UTC)
Place
Bailey, CO
Injuries
1 fatal
Damage
Destroyed
Phase of flight
Enroute
Aircraft
N4132GCessna 340A
Weather
Visual (VMC) · Day
Status
Completed · report March 13, 1989
Report
Approved by Office Director
FAA report
19871021080309A
Case key
17338

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 weatherCruise
Weather condition - turbulence,clear airCause
Flight into known adverse weather - attemptedPilot in commandCause
Fluid,fuel - contaminationFactor
Preflight planning/preparation - inadequatePilot in commandFactor
Powerplant - failure,partial
Loss of control - in flightCruise
Weather condition - turbulenceFactor
Preflight planning/preparation - inadequatePilot in commandCause
Powerplant - failure,total
In flight collision with terrain/waterDescent - uncontrolled

Analysis

The aircraft crashed on the side of a mountain during visual meteorological conditions. The pilot had been in voice and radar contact with air traffic control until the aircraft disappeared from radar. The pilot reported severe turbulence and a rough running engine to ATC as he was nearing a mountain pass. The pilot stated that he thought the rough running engine was due to fuel contamination. A witness reported that the pilot had said the fuel had contained alot of water. The pilot reported to ATC that he had just lost the engine and he was attempting to make it through a saddle. A SIGMET had been issued for that region and the severe turbulence was confirmed by another pilot. Engine teardown revealed no evidence of preimpact mechanical failure/malfunction.

Aircraft

Registration
N4132G
Reported as
Cessna 340A
Category
Airplane
Serial number
340A0303
Airframe hours
2,146
Engine
Continental TSIO-520N, 310 horsepower, reciprocating
Damage
Destroyed
Flight
Personal · Part 91
Operator
Harmon, James M., doing business as Harmon Ranch
Registered owner
James Munson Harmon
Airworthiness certificate
Standard, Normal
Last inspection
Annual · June 17, 1987 · 95 hours before
Departed
APA · Englewood, CO
Destination
Buena Vista, CO

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
57
Certificate
Airline transport
Airplane ratings
Single-engine sea, Multi-engine land, Single-engine land, Multi-engine sea
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
4,809 total · 364 in this make and model · 4,342 as pilot in command · 68 in the last 90 days · 27 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
210° at 7 knots
Visibility
60 statute miles
Lowest ceiling
None
Temperature
66 °F, dew point 16 °F
Altimeter
30.00 inHg
Observed at
DEN, 38 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.