# NTSB SEA83LA107: Beech V35-TC, N7980M, Wendling, OR, May 25, 1983

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: May 25, 1983, 10:50 local (17:50 UTC)
- Place: Wendling, OR
- Coordinates: 44.209037, -122.800224 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=44.2090&lon=-122.8002&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 39698
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA83LA107
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/39698/pdf
- Page: https://openairdocs.org/ntsb/SEA83LA107

## 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, cruise - normal
  - fuel system,line - disconnected (cause)
  - fuel system,pump - inoperative (cause)
  - fuel system,screen - blocked(partial) (contributing factor)
  - throttle/power lever - leak (contributing factor)
- Forced landing, landing - flare/touchdown
  - weather condition - low ceiling (contributing factor)
- In flight collision with object, landing - flare/touchdown
  - object - tree(s) (contributing factor)

## Analysis

THE ACFT COLLIDED WITH TREES AND DENSE BRUSH DURING AN OFF AIRPORT FORCED LANDING IN IMC WEATHER. ACCORDING TO THE PILOTHE WAS ABOUT 10 MINUTES INTO A CROSS COUNTRY FLIGHT AT 4000 FEET MSL WHEN FUEL PRESSURE DROPPED AND HE LOST ENGINE POWER. THE PILOT SWITCHED TANKS, CHECKED CIRCUIT BREAKERS, MAGNETOS AND HIGH BOOST FUEL PUMP. THE ENGINE DID NOT RESTARTTHE PILOT DESCENDED THROUGH THE OVERCAST AND BROKE OUT AT 500 FEET AGL. THE ACFT COLLIDED WITH SEVERAL TREES AND A CONCRETE BLOCK BEFORE COMING TO REST IN DEEP BRUSH. ENGINE TEARDOWN SHOWED BOOST PUMPS INOPERATIVE, THE MAIN FUEL LINE WAS LOOSE AT THE FIREWALL AND THE FUEL SCREEN HAS SOME DEBRIS IN IT. THE THROTTLE CONTROL ASSEMBLY WAS FOUND TO BE LEAKING PAST THE SHAFT O RING INTO THE INTAKE AREA.

## Aircraft

- Registration: [N7980M](https://openairdocs.org/deregistered/N7980M-1984-05-22), registration cancelled 1984-05-22, S/N D8267 (OpenAirDocs)
- Reported make and model: BEECH V35-TC
- Registry model: [Beech V35-TC](https://openairdocs.org/model/beech-v35-tc) (registry code 1151540) (OpenAirDocs)
- Category: Airplane
- Serial number: 8267
- Airframe hours: 2822
- Engines: CONTINENTAL TS10-520-D 285 horsepower reciprocating
- Damage: Destroyed
- Flight: Executive/Corporate, Part 91
- Registered owner: Wac Coporation
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, January 3, 1983, 200 hours before
- Departed: 0R78, EUGENE, OR
- Destination: S07, BEND, OR

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 29; commercial, flight instructor; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2, valid medical--no waivers/lim.; seat: left; flight hours: 4,500 total, 1,900 in this make and model, 4,270 as pilot in command, 200 in the last 90 days, 70 in the last 30 days, 6 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 340° at 7 knots
- Visibility: 12 statute miles
- Lowest ceiling: 1,100 ft overcast
- Temperature: 57 °F, dew point 52 °F
- Altimeter: 30.00 inHg
- Observed at: EUG, 20 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 19830525033849A](https://openairdocs.org/incident/19830525033849A), May 25, 1983: Beech D95A, Marcola, OR, Destroyed. Lost power VFR on top. Broke out at 500 feet and landed in trees. Low boost inoperative leaky throttle shaft o ring

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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