# NTSB MIA85FA057: Beech 65, N101V, Marathon, FL, December 10, 1984

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Field investigation · Final report
- Date: December 10, 1984, 12:30 local (17:30 UTC)
- Place: Marathon, FL
- Coordinates: 24.70943, -81.080062 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=24.7094&lon=-81.0801&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 5 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 31216
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA85FA057
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/31216/pdf
- Page: https://openairdocs.org/ntsb/MIA85FA057

## Sequence of events

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

- Loss of engine power, cruise - normal
  - engine assembly - undetermined (cause)
  - reason for occurrence undetermined (cause)
  - propeller feathering - not performed, pilot in command
- Ditching, landing - flare/touchdown

## Analysis

ACCORDING TO THE PLT, APRX 20 MIN AFTER DEPARTURE AT 4,000 TO 5,000 FT THE LEFT ENG FAILED FOLLOWED 10 MIN LATER BY A POWER LOSS IN THE RIGHT ENG. DURING THE DESC THE RIGHT ENG RESTARTED MOMENTARILY BUT ONLY RAN FOR ABOUT 1 MIN. THE PLT DITCHED NEAR A SAILBOAT WHOSE OCCUPANTS RESCUED THE PLT AND PAX. THE ACFT SUNK IN ABOUT 8 FT OF WATER. WHEN RECOVERED INVESTIGATORS FOUND THAT THE LEFT PROP WAS NOT FEATHERED. THE RIGHT PROP WAS SEPARATED FROM THE ENG AT THE FRONT GEAR CASE. IN THE SEPARATION SEQUENCE THE PROP PUNCTURED HOLES IN THE WING OUTBOARD OF THE RIGHT ENG NACELLE. FUEL SAMPLES TAKEN FROM TRUCKS AT THE DEP ARPT WERE SATISFACTORY

## Aircraft

- Registration: [N101V](https://openairdocs.org/deregistered/N101V-1991-03-13), registration cancelled 1991-03-13, S/N LC67 (OpenAirDocs)
- Reported make and model: Beech 65
- Registry model: [Beech 65](https://openairdocs.org/model/beech-65) (registry code 1152802) (OpenAirDocs)
- Category: Airplane
- Serial number: LC-67
- Airframe hours: 39786
- Engines: LYCOMING IGSO-480A1B6 340 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Bernardo Valiente
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, January 24, 1984
- Departed: MTH, MARATHON, FL
- Destination: TPA, TAMPA, FL
- Flight plan: IFR
- Airport: Marathon

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 50; airline transport, commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, valid medical--w/ waivers/lim; seat: left; flight hours: 10,397 total, 144 in this make and model, 10,011 as pilot in command, 1,047 in the last 90 days, 16 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 360° at 13 knots
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 73 °F, dew point 55 °F
- Altimeter: 30.00 inHg
- Observed at: EYW, 30 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 19841210065539A](https://openairdocs.org/incident/19841210065539A), Dec 10, 1984: Beech 65, Marathon, FL, Destroyed. Left engine quit, right quit 10 minutes later, ditched. Malfunction not found due to extensive salt water corrosion

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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