# NTSB MIA88IA079: Cessna U206G, N4820R, Key West, FL, December 29, 1987

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Incident investigation · Final report
- Date: December 29, 1987, 11:00 local (16:00 UTC)
- Place: Key West, FL
- Coordinates: 24.550956, -81.779945 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=24.5510&lon=-81.7799&mi=10
- Phase of flight: [Taxi](https://openairdocs.org/ntsb-phases/250) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report July 10, 1989
- Report: Approved by Office Director
- NTSB case key (mKey): 32052
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA88IA079
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/32052/pdf
- Page: https://openairdocs.org/ntsb/MIA88IA079

## Sequence of events

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

- Loss of control - on ground/water, taxi - to takeoff
  - terrain condition - water
  - compensation for wind conditions - inadequate, pilot in command (cause)
  - weather condition - crosswind (contributing factor)
- Dragged wing,rotor,pod,float or tail/skid, taxi - to takeoff
- Roll over, taxi - to takeoff

## Analysis

WHILE WATER TAXIING NW FROM THE RAMP TO TAKEOFF WITH THE WIND FROM THE NORTH AT 22 KTS, THE RT WING LIFTED RESULTING IN THE LT FLOAT DIGGING INTO THE WATER. THE PLT ATTEMPTED TO CORRECT THIS BY TURNING INTO THE WIND AND APPLYING FULL-UP RIGHT AILERON BUT WAS UNABLE. THE ACFT THEN ROLLED OVER AND CAME TO REST.

## Aircraft

- Registration: [N4820R](https://openairdocs.org/deregistered/N4820R-1999-03-08), registration cancelled 1999-03-08, S/N U20606809 (OpenAirDocs)
- Reported make and model: CESSNA U206G
- Registry model: [Cessna U206G](https://openairdocs.org/model/cessna-u206g) (registry code 2073356) (OpenAirDocs)
- Category: Airplane
- Serial number: U20606809
- Airframe hours: 2356
- Engines: CONTINENTAL IO-520F 300 horsepower reciprocating
- Damage: Minor damage
- Flight: Positioning, Part 91
- Operator: Key West Seaplane Service, Inc
- Registered owner: Key West Seaplane Serv. Inc
- Last inspection: 100 hour, November 8, 1987, 71 hours before
- Destination: DTF, DRY TORTUGAS IS, FL
- Flight plan: VFR
- Airport: EYW, Key West

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 40; commercial, airline transport; airplane ratings: single-engine sea, single-engine land, multi-engine land; instrument ratings: airplane; medical: class 1, valid medical--w/ waivers/lim; seat: left; flight hours: 7,870 total, 410 in this make and model, 7,651 as pilot in command, 100 in the last 90 days, 8 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 350° at 22 knots
- Visibility: 7 statute miles
- Lowest ceiling: 8,000 ft overcast
- Temperature: 72 °F, dew point 61 °F
- Altimeter: 30.00 inHg
- Observed at: EYW, 3 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).

- [Incident 19871229075149I](https://openairdocs.org/incident/19871229075149I), Dec 29, 1987: Cessna U206G, Key West, FL, Substantial damage. During water taxi wind gust caused one float to lift and bury the other rolling inverted. 609 check pending.

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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