# NTSB SEA91LA041: Aero Commander 200D, N235M, Tooele, UT, January 13, 1991

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Limited investigation · Final report
- Date: January 13, 1991, 12:49 local (19:49 UTC)
- Place: Tooele, UT
- Coordinates: 40.569618, -112.330841 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=40.5696&lon=-112.3308&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed, report March 31, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 41380
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA91LA041
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/41380/pdf
- Page: https://openairdocs.org/ntsb/SEA91LA041

## Probable cause

ENGINE FUEL SYSTEM BLOCKAGE DUE TO ICE FORMATION IN THE FUEL SYSTEM DURING A PERIOD OF WEATHER TEMPERATURE EXTREMES. A FACTOR WAS THE LACK OF SUITABLE TERRAIN FOR A FORCED LANDING.

## Sequence of events

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

- Loss of engine power(partial) - nonmechanical, climb - to cruise
  - fuel system - blocked(total) (cause)
  - weather condition - temperature extremes
- Forced landing, descent - emergency
  - terrain condition - none suitable (contributing factor)
- Ditching, descent - emergency

## Analysis

THE ACFT LOST POWER WHILE IN A NORMAL CLIMB ABOUT 5 MINUTES AFTER TAKEOFF. THE PILOT WAS NOT ABLE TO RESTART THE ENGINE AND ELECTED TO DITCH THE ACFT IN THE GREAT SALT GREAT.

## Aircraft

- Registration: [N235M](https://openairdocs.org/deregistered/N235M-2014-09-19), registration cancelled 2014-09-19, S/N 296, built 1966 (OpenAirDocs)
- Reported make and model: AERO COMMANDER 200D
- Registry model: [Aero Commander 200](https://openairdocs.org/model/aero-commander-200) (registry code 0140302) (OpenAirDocs)
- Registry engine: [Continental IO-520 series](https://openairdocs.org/engine/continental-io-520-series) (registry code 17032, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 296
- Engines: CONTINENTAL IO-520-A 285 horsepower reciprocating
- Damage: Destroyed
- Flight: Personal, Part 91
- Operator: Donald S. Zakraisek
- Registered owner: Donald S. Zakraisek
- Destination: U42, SALT LAKE CITY, UT

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 45; private; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 3, valid medical--w/ waivers/lim; flight hours: 800 total, 174 in this make and model, 800 as pilot in command, 15 in the last 90 days, 2 in the last 30 days

## Weather

- Conditions: Instrument (IMC), Day
- Wind: 310° at 9 knots
- Lowest ceiling: 1,200 ft unknown
- Temperature: 30 °F, dew point 30 °F
- Observed at: SLC, 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 19910113002449A](https://openairdocs.org/incident/19910113002449A), Jan 13, 1991: Propjt 200D, Tooele, UT, Destroyed. Departed into near zero IMC in heavy snow shower. Turned back engine quit ditched in lake. Beleive ice blocked fuel

## Other investigations on N235M (1)

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.

- [NTSB CHI68F0498](https://openairdocs.org/ntsb/CHI68F0498), Dec 29, 1967: Aero Comdr 200-D (N235M), Plymouth, MI, substantial damage

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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