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Crash of a Cessna 340A near Bailey: 1 killed

Date & Time: Oct 21, 1987 at 1135 LT
Type of aircraft:
Registration:
N4132G
Flight Phase:
Flight Type:
Survivors:
No
Site:
Schedule:
Denver – Buena Vista
MSN:
340A-0303
YOM:
1977
Location:
Crew on board:
1
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
1
Captain / Total flying hours:
4809
Captain / Total hours on type:
364.00
Aircraft flight hours:
2146
Circumstances:
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 a lot 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.
Probable cause:
Occurrence #1: in flight encounter with weather
Phase of operation: cruise
Findings
1. (c) weather condition - turbulence, clear air
2. (c) flight into known adverse weather - attempted - pilot in command
3. (f) fluid, fuel - contamination
4. (f) preflight planning/preparation - inadequate - pilot in command
5. Powerplant - failure, partial
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Occurrence #2: loss of control - in flight
Phase of operation: cruise
Findings
6. (f) weather condition - turbulence
7. (c) preflight planning/preparation - inadequate - pilot in command
8. Powerplant - failure, total
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Occurrence #3: in flight collision with terrain/water
Phase of operation: descent - uncontrolled
Final Report:

Crash of a Cessna 402B in Bailey: 8 killed

Date & Time: Jun 17, 1985 at 1715 LT
Type of aircraft:
Registration:
N100HK
Flight Phase:
Survivors:
No
Site:
Schedule:
Broomfield - Monte Vista
MSN:
402B-0409
YOM:
1973
Location:
Crew on board:
1
Crew fatalities:
Pax on board:
7
Pax fatalities:
Other fatalities:
Total fatalities:
8
Captain / Total flying hours:
3000
Circumstances:
Ground witnesses observed the aircraft enter low clouds going south, then emerge from clouds going went. Aircraft collided with mountain in wings-level and powered attitude. Mountains were reported to be obscured by clouds and fog. All eight occupants were killed.
Probable cause:
Occurrence #1: in flight encounter with weather
Phase of operation: cruise - normal
Findings
1. (f) weather condition - clouds
2. (c) flight into known adverse weather - initiated - pilot in command
3. (f) weather condition - obscuration
4. (c) in-flight planning/decision - improper - pilot in command
5. (f) weather condition - fog
6. (c) vfr flight into imc - continued - pilot in command
7. (c) clearance - inadequate - pilot in command
----------
Occurrence #2: in flight collision with object
Phase of operation: cruise - normal
Findings
8. (f) object - tree(s)
----------
Occurrence #3: in flight collision with terrain/water
Phase of operation: cruise - normal
Findings
9. (f) terrain condition - mountainous/hilly
Final Report: