# NTSB MIA92FA112: Navion NAV-A, N4904E, Monteverde, FL, April 22, 1992

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Field investigation · Final report
- Date: April 22, 1992, 09:30 local (13:30 UTC)
- Place: Monteverde, FL
- Location: 28.6024° N, 81.6741° W: Placed by OpenAirDocs: center of Montverde, FL, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=28.6024&lon=-81.6741&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 1 fatal
- Status: Completed, report August 31, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 32984
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA92FA112
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/32984/pdf
- Page: https://openairdocs.org/ntsb/MIA92FA112

## Probable cause

THE PILOT'S INADVERTENT FLIGHT INTO IMC CONDITIONS AND SUBSEQUENT LOSS OF CONTROL OF THE AIRPLANE IN FLIGHT.

## Sequence of events

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

- In flight encounter with weather, cruise
  - weather condition - fog (contributing factor)
  - vfr flight into imc - inadvertent, pilot in command (cause)
  - spatial disorientation, pilot in command (cause)
- In flight collision with terrain/water, descent - uncontrolled
  - terrain condition - water

## Analysis

THE NONINSTRUMENT-RATED PRIVATE PILOT ATTEMPTED A VFR FLIGHT AND ENCOUNTERED IMC CONDITIONS EN ROUTE. HE LOST CONTROL OF THE AIRPLANE AND CRASHED INTO A LAKE.

## Aircraft

- Registration: [N4904E](https://openairdocs.org/deregistered/N4904E-2014-10-14), registration cancelled 2014-10-14, S/N NAV-4-983 (OpenAirDocs)
- Reported make and model: NAVION NAV-A
- Registry model: [Navion NAVION A](https://openairdocs.org/model/navion-navion-a) (registry code 6150104) (OpenAirDocs)
- Registry engine: [Continental O-470 series](https://openairdocs.org/engine/continental-o-470-series) (registry code 17026, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: NAV A 983
- Engines: CONTINENTAL E-185-3 185 horsepower reciprocating
- Damage: Destroyed
- Flight: Personal, Part 91
- Operator: Harold J. Ainsley
- Registered owner: Harold J. Ainsley
- Airworthiness certificate: Standard, Normal
- Last inspection: Unknown, January 2, 2000
- Departed: GIF, WINTERHAVEN, FL
- Destination: SFB, SANFORD, FL

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 68; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; seat: left; toxicology performed; flight hours: 1,000 total

## Weather

- Conditions: Instrument (IMC), Day
- Wind: 280° at 5 knots
- Visibility: 7 statute miles
- Lowest ceiling: 7,000 ft broken
- Temperature: 81 °F, dew point 68 °F
- Altimeter: 30.00 inHg
- Observed at: MCO, 19 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 19920422010569A](https://openairdocs.org/incident/19920422010569A), Apr 22, 1992: Tmpson NAVIONA, Monte Verde, FL, Destroyed, 1 fatal. Using flight following VFR flew into area of dense fog. ATC tried to give vectors to VFR but pilot lost control.

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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