# NTSB SEA82DA087: Cessna 206, N60092, Renton, WA, June 13, 1982

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Final report
- Date: June 13, 1982, 12:12 local (19:12 UTC)
- Place: Renton, WA
- Coordinates: 47.459571, -122.210968 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=47.4596&lon=-122.2110&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed, report June 13, 1983
- Report: Approved by Office Director
- NTSB case key (mKey): 72373
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA82DA087
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/72373/pdf
- Page: https://openairdocs.org/ntsb/SEA82DA087

## Sequence of events

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

- Loss of engine power(total) - mech failure/malf, descent - normal
  - engine assembly,connecting rod - undetermined (cause)
- Forced landing, descent - emergency
- Ditching, landing - flare/touchdown

## Analysis

ACCORDING TO THE PILOT, THE AIRCRAFT WAS ON ITS FIRST FLIGHT AFTER A MAJOR ENGINE OVERHAUL AND WAS BEING FLOWN FOR MAINTENANCE EVALUATION. ABOUT 45 MINUTES AFTER TAKEOFF, THE PILOT REQUESTED A DESCENT FROM 7500 FEET MSL. AFTER ENTERING AN OVERCAST, THE ENGINE SPUTTERED AND BEGAN TO VIBRATE AND LOSE POWER. THE ENGINE THEN STOPPED AND WOULD NOT RESTART, AND THE PILOT DECLARED A "MAY DAY." THE PLANE BROKE OUT OF THE OVERCAST OVER A LAKE AT ABOUT 2200 FEET. SUBSEQUENTLY, THE PILOT MADE A CONTROLLED LANDING NEAR BOATS ABOUT ONE MILE FROM THE SHORE. THE OCCUPANTS WERE RESCUED IN LESS THAN A MINUTE. LATER, THE AIRCRAFT WAS RECOVERED FROM THE LAKE WHERE IT HAD SUNK IN ABOUT 90 FT OF WATER. AN ENGINE TEARDOWN REVEALED THAT THE NO. 5 CONNECTING ROD HAD SEPARATED FROM THE PISTON. THE STUB OF THE CONNECTING ROD HAD BEAT A HOLE IN THE LEFT SIDE OF THE CRANKCASE, WHICH IN TURN, RESULTED IN OIL STARVATION.

## Aircraft

- Registration: [N60092](https://openairdocs.org/deregistered/N60092-2014-10-29), registration cancelled 2014-10-29, S/N U20602004, built 1973 (OpenAirDocs)
- Reported make and model: CESSNA 206
- Registry model: [Cessna TU206F](https://openairdocs.org/model/cessna-tu206f) (registry code 2073353) (OpenAirDocs)
- Registry engine: [Continental TSIO-520 series](https://openairdocs.org/engine/continental-tsio-520-series) (registry code 17040, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: U20602004
- Airframe hours: 1412
- Engines: CONTINENTAL TSIO-520-C 300 horsepower reciprocating
- Flight: Part 91
- Operator: Herman M. Pfahl
- Registered owner: Herman M. Pfahl
- Departed: RENTON, WA
- Destination: RENTON, WA
- Flight plan: Unknown

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 47; commercial; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 2, invalid medical for flight; flight hours: 5,000 total, 22 in this make and model, 5,000 as pilot in command, 49 in the last 90 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 180° at 9 knots
- Visibility: 8 statute miles
- Lowest ceiling: 2,200 ft broken
- Temperature: 144 °F
- Altimeter: 29.00 inHg
- Observed at: BFI, 7 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 19820613070729A](https://openairdocs.org/incident/19820613070729A), Jun 13, 1982: Cessna U206, Renton, WA. Nr 5 cylinder connecting rod failed on descent to airport. Landed short in a lake. First flight after engine overhaul

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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