# NTSB DEN84FA300: Beech V35, N3736Q, Missoula, MT, September 21, 1984

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Field investigation · Final report
- Date: September 21, 1984, 14:50 local (20:50 UTC)
- Place: Missoula, MT
- Location: 47.1243° N, 113.9414° W: Placed by OpenAirDocs from NTSB’s distance and direction from MISSOULA MONTANA (MSO), within about 5 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=47.1243&lon=-113.9414&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 3 fatal
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 16244
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN84FA300
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/16244/pdf
- Page: https://openairdocs.org/ntsb/DEN84FA300

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- In flight encounter with weather, approach - iaf to faf/outer marker (ifr)
  - weather condition - icing conditions (contributing factor)
  - weather condition - turbulence in clouds (contributing factor)
  - in-flight planning/decision - improper, pilot in command (contributing factor)
- In flight collision with terrain/water, approach - iaf to faf/outer marker (ifr)
  - terrain condition - mountainous/hilly (contributing factor)
  - ifr procedure - improper, pilot in command (cause)
  - planned approach - not performed, pilot in command (cause)
  - minimum descent altitude - not maintained, pilot in command (cause)

## Analysis

ON SEPT 21, 1984, A BEECH 35, N3736Q CRASHED INTO THE SIDE OF A MOUNTAIN 16 MILES NE OF MISSOULA, MT WHILE ON A VOR/DME8INSTRUMENT APPROACH. THE PLT REPORTED ICING, TURBULENCE, AND INTERMITTANT VOR-DME RECEPTION. THE LAST REPORTED ALTITUDE BY THE PLT WAS 8500 FT ON A HEADING OF 250.. MISSOULA APPROACH CONTROL INSTRUCTED THE PLT TO ARC SOUTHEAST 16 NM AND TO INTERCEPT THE 152. RADIAL INBOUND TO ABORT FINAL APPROACH FIX. THE AIRCRAFT WAS APPROACHING THE ARC FROM THE EAST AND A LEFT TURN WAS REQUIRED. INSTEAD, THE PLT TURNED RIGHT AND PROCEEDED TO THE NW. HIS LAST POSITION REPORT WAS THE 16 NM ARC AT THE 028 RADIAL. THE CRASH SITE WAS LOCATED AT 14 NM ON THE 013. RADIAL OF THE MISSOULA VORTAC.

## Aircraft

- Registration: N3736Q (not matched to a registry record)
- Reported make and model: BEECH V35
- Category: Airplane
- Serial number: D-8384
- Engines: CONTINENTAL IO-520-B 285 horsepower reciprocating
- Damage: Destroyed
- Fire: On-Ground
- Flight: Personal, Part 91
- Registered owner: Mark J. Czyzewicz
- Airworthiness certificate: Standard, Normal
- Departed: RAP, RAPID CITY, SD
- Destination: MSO, MISSOULA, MT
- Flight plan: IFR
- Airport: MSO, Missoula

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 28; commercial; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: left; flight hours: 1,700 total

## Weather

- Conditions: Instrument (IMC), Day
- Wind: 350° at 8 knots
- Visibility: 20 statute miles
- Lowest ceiling: 4,100 ft overcast
- Temperature: 45 °F, dew point 39 °F
- Altimeter: 29.00 inHg
- Observed at: MSO, 16 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 (OpenAirDocs).

- [Accident 19840921050439A](https://openairdocs.org/incident/19840921050439A), Sep 21, 1984: Beech V35, Missoula, MT, Destroyed, 2 fatal. Turned right instead of left of DME arc, flew into side of mountain. Intermittently lost DME and VOR signals.

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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