# NTSB MIA93FA035: Cessna 310D, N6737T, Miami, FL, December 24, 1992

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Field investigation · Final report
- Date: December 24, 1992, 06:34 local (11:34 UTC)
- Place: Miami, FL
- Coordinates: 25.649915, -80.489295 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=25.6499&lon=-80.4893&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious
- Status: Completed, report January 31, 1994
- Report: Approved by Office Director
- NTSB case key (mKey): 33171
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA93FA035
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/33171/pdf
- Page: https://openairdocs.org/ntsb/MIA93FA035

## Probable cause

IMPROPER INSTALLATION OF THE RIGHT OUTBOARD TORQUE TUBE IN THE RIGHT FUEL SELECTOR VALVE ASSEMBLY HOUSING RESULTING IN A TOTAL LOSS OF ENGINE POWER DUE TO FUEL STARVATION.

## Sequence of events

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

- Loss of engine power, cruise - normal
  - 2 engines
  - fuel system,selector/valve - improper (cause)
  - maintenance,installation - improper, company maintenance personnel (cause)
  - fluid,fuel - starvation (cause)
- Forced landing, landing - flare/touchdown
- In flight collision with terrain/water, landing - flare/touchdown

## Analysis

WHILE IN CRUISE FLIGHT AT 1,000 THE LEFT ENG QUIT. THE LEFT ENG FUEL SEL WAS MOVED FROM THE LEFT MAIN PSN TO THE LEFT AUX PSN, AND THE LEFT ENG RESTARTED. TWO MIN LATER THE RIGHT ENG QUIT. THE RIGHT ENG FUEL SEL WAS MOVED FROM THE RIGHT MAIN PSN TO RIGHT AUX PSN, AND THE RIGHT ENG RESTARTED. BOTH ENGS THEN QUIT. A FORCED LANDING WAS MADE IN THE EVERGLADES. DISASSEMBLY OF THE RIGHT FUEL SELECTOR VALVE REVEALED THAT THE VALVE WAS IN THE OFF POSITION DUE TO THE IMPROPER INSTALLATION OF THE RIGHT OUTBOARD TORQUE TUBE IN THE ASSEMBLY HOUSING.

## Aircraft

- Registration: [N6737T](https://openairdocs.org/deregistered/N6737T-2013-05-01), registration cancelled 2013-05-01, S/N 39037, built 1959 (OpenAirDocs)
- Reported make and model: CESSNA 310D
- Registry model: [Cessna 310D](https://openairdocs.org/model/cessna-310d) (registry code 2074212) (OpenAirDocs)
- Registry engine: [Continental I0-470 series](https://openairdocs.org/engine/continental-i0-470-series) (registry code 17027, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 31039037
- Airframe hours: 5500
- Engines: CONTINENTAL IO-470-D 260 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Sorenson, Mark A.
- Registered owner: Sorenson, Mark A.
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, December 1, 1992, 18 hours before
- Departed: OPF, OPA LOCKA, FL

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 20; commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; seat: left; toxicology performed; flight hours: 796 total, 172 in this make and model, 717 as pilot in command, 106 in the last 90 days, 13 in the last 30 days

## Weather

- Conditions: Visual (VMC), Night/dark
- Wind: 360° at 4 knots
- Lowest ceiling: none
- Temperature: 70 °F, dew point 68 °F
- Altimeter: 30.00 inHg
- Observed at: TMB, 9 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 19921224051759A](https://openairdocs.org/incident/19921224051759A), Dec 24, 1992: Cessna 310D, Miami, FL, Substantial damage. Lost both engines power shortly after departure. Landed in everglades. Fuel selectors not in detenie. Fuel valve off

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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