# NTSB SEA92FA001: North American Navion, N91577, Ola, ID, October 4, 1991

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Field investigation · Final report
- Date: October 4, 1991, 13:05 local (19:05 UTC)
- Place: Ola, ID
- Coordinates: 44.27066, -116.310455 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=44.2707&lon=-116.3105&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 1 fatal
- Status: Completed, report April 23, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 41557
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA92FA001
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/41557/pdf
- Page: https://openairdocs.org/ntsb/SEA92FA001

## Probable cause

AN INCAPACITATING HEART ATTACK WHILE IN FLIGHT.

## Sequence of events

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

- In flight collision with terrain/water, cruise
  - terrain condition - mountainous/hilly
  - incapacitation(cardiovascular), pilot in command (cause)

## Analysis

DURING PLEASURE FLIGHT, THE AIRPLANE COLLIDED WITH THE TERRAIN IN A LEVEL FLIGHT ATTITUDE.  DURING THE INVESTIGATION THERE WERE NO NOTED MECHANICAL FAILURES OR MALFUNCTIONS.  THE PILOT'S AUTOPSY RESULTS INDICATED THT MULTIPLE SECTIONS OF THE CORONARY VESSELS SHOWED SEVERE CORNOARY ATHEROSCLEROSIS INVOLVING BOTH THE RIGHT AND LEFT CORNOARY VESSELS.  THE PILOT WAS ALSO TAKING PRESCRIPTION MEDICATION FOR LIPID REGULATION.

## Aircraft

- Registration: [N91577](https://openairdocs.org/deregistered/N91577-2013-05-22), registration cancelled 2013-05-22, S/N NAV-4-358, built 1946 (OpenAirDocs)
- Reported make and model: NORTH AMERICAN NAVION
- Registry model: [North American NAVION](https://openairdocs.org/model/north-american-navion) (registry code 6150130) (OpenAirDocs)
- Registry engine: [Continental E225 series](https://openairdocs.org/engine/continental-e225-series) (registry code 17015, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: NAV4358
- Engines: CONTINENTAL IO-470-CI 250 horsepower reciprocating
- Damage: Destroyed
- Fire: On-Ground
- Flight: Personal, Part 91
- Operator: Bryce V. Rogers
- Registered owner: Bryce V. Rogers
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, September 12, 1991
- Departed: S78, EMMETT, ID

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 66; commercial; airplane ratings: multi-engine land, single-engine land, multi-engine sea, single-engine sea; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: left; toxicology performed; flight hours: 13,346 total

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 50 statute miles
- Lowest ceiling: none

## 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 19911004044929A](https://openairdocs.org/incident/19911004044929A), Oct 4, 1991: Navion STCNAVION, Ola, ID, Destroyed, 1 fatal. Impacted terrain and burned during low level flight over owners property. Had severe coronary disease and thrombosis

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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