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Crash of a Cessna 425 Conquest I in Helena

Date & Time: Aug 11, 2021 at 0850 LT
Type of aircraft:
Operator:
Registration:
N783MB
Flight Type:
Survivors:
Yes
Schedule:
Faribault - Missoula
MSN:
425-0103
YOM:
1982
Location:
Crew on board:
1
Crew fatalities:
Pax on board:
2
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
En route from Faribault, Minnesota, to Missoula, the pilot encountered engine problems (loss of power) and elected to divert to Helena Airport. On approach, the aircraft crashed in hilly and wooded terrain north of Helena. All three occupants were injured and the aircraft was destroyed.

Crash of a Cessna 421A Golden Eagle I in Helena: 3 killed

Date & Time: Feb 3, 1988 at 2000 LT
Type of aircraft:
Registration:
N517S
Survivors:
No
Schedule:
Missoula - Helena
MSN:
421A-0002
YOM:
1967
Location:
Crew on board:
2
Crew fatalities:
Pax on board:
1
Pax fatalities:
Other fatalities:
Total fatalities:
3
Captain / Total flying hours:
4900
Captain / Total hours on type:
119.00
Aircraft flight hours:
4758
Circumstances:
This accident occurred during a night, ILS approach to runway 27 in IMC. The aircraft collided with a mountain 12 nm east-southeast of the airport while turning inbound to intercept the localizer course. Investigation revealed that one VOR receiver was set on the destination ILS frequency, the second VOR was set on an en route VOR 51 nm west of the destination airport, and the DME radio, a separate transceiver, was set on the destination DME transmitter. The frequencies of the en route VOR and the destination VOR were 117.1 and 117.7, respectively. The outbound course for the ILS approach procedure was 088° and the accident site was located on the 088 radial of the en route VOR. Investigation also revealed that the pic was occupying the right front seat and an experienced pilot who was not current in this aircraft was occupying the left seat. The second VOR receiver control head was located in the lower right portion of the instrument panel, in a location where the selected frequency was difficult to read. All three occupants were killed.
Probable cause:
Occurrence #1: in flight collision with terrain/water
Phase of operation: approach - iaf to faf/outer marker (ifr)
Findings
1. Terrain condition - mountainous/hilly
2. (f) light condition - dark night
3. (c) ifr procedure - improper - pilot in command
4. (c) navigation receiver - improper use of - pilot in command
Final Report: