# NTSB SEA92LA170: Cessna 411, N136CH, Lehi, UT, July 30, 1992

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: July 30, 1992, 17:45 local (23:45 UTC)
- Place: Lehi, UT
- Coordinates: 40.410236, -111.869621 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=40.4102&lon=-111.8696&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report August 26, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 42867
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA92LA170
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/42867/pdf
- Page: https://openairdocs.org/ntsb/SEA92LA170

## Probable cause

THE FAILURE BY THE PILOT TO MAINTAIN AIRSPEED ABOVE VMC, RESULTING IN LOSS OF CONTROL IN FLIGHT, AND HIS FAILURE TO LOWER THE FLAPS AND LANDING GEAR FOR THE FORCED LANDING.  A FACTOR RELATING TO THE ACCIDENT WAS THE PILOT'S DECISION TO PERFORM FUEL SYSTEM CHECKS IN FLIGHT AT A LOW ALTITUDE AGL.

## Sequence of events

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

- Loss of engine power(total) - nonmechanical, maneuvering
  - 1 engine
  - in-flight planning/decision - improper, pilot in command (contributing factor)
- Loss of control - in flight, maneuvering
  - airspeed(vmc) - not maintained, pilot in command (cause)
- Forced landing, descent - emergency
- In flight collision with terrain/water, landing - flare/touchdown
  - lowering of flaps - not performed, pilot in command (cause)
  - gear extension - not performed, pilot in command (cause)

## Analysis

THE PILOT WAS FERRYING THE ACFT BACK TO BASE AFTER ANNUAL INSPECTION AND WAS PERFORMING FUEL SYSTEM CHECKS AT A LOW ALTITUDE AGL WHEN THE RIGHT ENGINE QUIT.  HE LOST ALTITUDE AND AIRSPEED WHILE ATTEMPTING TO RESTART THE ENGINE, AND THE ACFT STARTED TO ROLL WHEN HE INCREASED POWER ON THE LEFT ENGINE.  HE REDUCED THE LEFT THROTTLE AND MADE A FORCED LANDING IN AN OPEN FIELD WITH THE LANDING GEAR AND FLAPS RETRACTED.

## Aircraft

- Registration: [N136CH](https://openairdocs.org/deregistered/N136CH-1994-04-01), registration cancelled 1994-04-01, S/N 4110116 (OpenAirDocs)
- Reported make and model: CESSNA 411
- Registry model: [Cessna 411](https://openairdocs.org/model/cessna-411) (registry code 2075902) (OpenAirDocs)
- Category: Airplane
- Serial number: 4110116
- Airframe hours: 6710
- Engines: CONTINENTAL GTSIO-520-C7 340 horsepower reciprocating
- Damage: Substantial damage
- Flight: Ferry, Part 91
- Operator: Jump West, Inc.
- Registered owner: Jump West, Inc.
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, July 30, 1992, 1 hours before
- Departed: SLC, SALT LAKE CITY, UT
- Destination: UT10, CEDAR FORT, UT

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 37; commercial; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2, valid medical--no waivers/lim.; seat: left; flight hours: 1,008 total, 220 in this make and model, 961 as pilot in command, 75 in the last 90 days, 16 in the last 30 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 320° at 8 knots
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 91 °F, dew point 43 °F
- Altimeter: 30.00 inHg
- Observed at: PVU, 15 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 19920730028179A](https://openairdocs.org/incident/19920730028179A), Jul 30, 1992: Cessna 411, Lehi, UT, Substantial damage. Aircraft on ferry flight from annual. Checked aux fuel system 400 AGL right engine quit forced landing in field.

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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