# NTSB MIA91LA077: Ryan Navion, N4154K, Lake City, FL, February 3, 1991

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: February 3, 1991, 13:30 local (18:30 UTC)
- Place: Lake City, FL
- Coordinates: 30.189979, -82.640098 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=30.1900&lon=-82.6401&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed, report January 25, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 32818
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA91LA077
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/32818/pdf
- Page: https://openairdocs.org/ntsb/MIA91LA077

## Probable cause

IN-FLIGHT ENCOUNTER WITH WIND SHEAR WHILE ON SHORT FINAL RESULTING IN A HARD LANDING.

## Sequence of events

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

- In flight encounter with weather, approach - vfr pattern - final approach
  - weather condition - windshear (cause)
  - throttle/power control - initiated, dual student
- Hard landing, descent - uncontrolled

## Analysis

WHILE ON SHORT FINAL AFTER DESCENDING BELOW TREES AT THE APCH END OF THE RWY, THE CFI STATED THAT THE FLT ENCOUNTERED WIND SHEAR.  THE STUDENT APPLIED POWER TO GO AROUND BUT THE ACFT DESCENDED & LANDED HARD.

## Aircraft

- Registration: [N4154K](https://openairdocs.org/deregistered/N4154K-2013-06-18), registration cancelled 2013-06-18, S/N NAV-4-1154, built 1948 (OpenAirDocs)
- Reported make and model: RYAN NAVION
- Registry model: [Ryan NAVION](https://openairdocs.org/model/ryan-navion) (registry code 6150160) (OpenAirDocs)
- Registry engine: [Continental E185 series](https://openairdocs.org/engine/continental-e185-series) (registry code 17014, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: NAV-4-1154
- Engines: CONTINENTAL E185-9 205 horsepower reciprocating
- Damage: Substantial damage
- Flight: Instructional, Part 91
- Operator: Schretzmann, William F
- Registered owner: Schretzmann, William F
- Airworthiness certificate: Standard, Utility; Standard, Normal
- Airport: FL27, Lake City Airpark, runway 5, 2,800 × 100 ft, grass/turf

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 64; airline transport, commercial, flight instructor; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: right; flight hours: 4,135 total, 620 in this make and model, 4,007 as pilot in command, 25 in the last 90 days, 10 in the last 30 days, 6 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 100° at 17 knots
- Visibility: 7 statute miles
- Lowest ceiling: 10,000 ft broken
- Temperature: 72 °F, dew point 61 °F
- Observed at: GNV, 34 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 19910203003879A](https://openairdocs.org/incident/19910203003879A), Feb 3, 1991: Tmpson NAVION*, Lake City, FL, Substantial damage. Blamed windshear on final. Left main gear sheared off on fence. Crosswind existed.

## Other investigations on N4154K (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 UNK65X1226](https://openairdocs.org/ntsb/UNK65X1226), Jan 3, 1965: Navion NAV4 (N4154K), Hanover, NJ, 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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