# NTSB FTW87FA142: Beech 35, N3063V, Cookson, OK, June 13, 1987

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Field investigation · Final report
- Date: June 13, 1987, 09:10 local (14:10 UTC)
- Place: Cookson, OK
- Coordinates: 35.680644, -94.890304 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=35.6806&lon=-94.8903&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious, 1 uninjured
- Status: Completed, report November 29, 1988
- Report: Approved by Office Director
- NTSB case key (mKey): 22252
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW87FA142
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/22252/pdf
- Page: https://openairdocs.org/ntsb/FTW87FA142

## Sequence of events

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

- Fire, climb - to cruise
  - lubricating system,oil pressure pump - undertorqued (cause)
  - lubricating system,oil pressure pump - leak (cause)
  - emergency procedure - initiated, pilot in command
  - maintenance,inspection - inadequate, other maintenance personnel (contributing factor)
- Forced landing, descent - emergency
- Fire, landing - roll
  - airport fire/rescue service - unavailable

## Analysis

JUST AFTER TAKEOFF SMOKE WAS SMELLED AND THEN OBSERVED IN THE COCKPIT. THE PILOT BELEIVED THAT THE SMOKE SOURCE WAS ELECTRICAL AND TURNED OFF THE MASTER SWITCH. JUST BEFORE TOUCHDOWN FLAMES BEGAN BURNING THE PILOTS LEFT LEG. THE AIRCRAFT WAS STOPPED ON THE RUNWAY AND THE PILOT AND PAX DEPLANED. THE AIRCRAFT WAS THEN DESTROYED BY FIRE. THE ENGINE OIL PUMP ATTACH BOLTS WERE FOUND TO BE LOOSE AND ALLOWING OIL TO DRIP ONTO THE HOT MUFFLER, WHICH IGNITED. FLAMES ENTERED THE COCKPIT THROUGH THE HOT AIR DUCT.

## Aircraft

- Registration: [N3063V](https://openairdocs.org/deregistered/N3063V-2013-02-25), registration cancelled 2013-02-25, S/N D-476, built 1947 (OpenAirDocs)
- Reported make and model: BEECH 35
- Registry model: [Beech 35](https://openairdocs.org/model/beech-35) (registry code 1151502) (OpenAirDocs)
- Registry engine: [Continental E185 series](https://openairdocs.org/engine/continental-e185-series) (registry code 17014, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: D-476
- Airframe hours: 3251
- Engines: CONTINENTAL E-185-8 196 horsepower reciprocating
- Damage: Destroyed
- Fire: In-Flight
- Flight: Personal, Part 91
- Registered owner: Blane Miller & Earl Williams
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, April 3, 1986, 2 hours before
- Departed: 44M, COOKSON, OK
- Destination: 2EJ, OKLAHOMA CITY, OK
- Flight plan: VFR
- Airport: 44M, Tenkille Lake, runway 23, 2,600 × 50 ft, grass/turf

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 61; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; seat: left; flight hours: 197 total, 7 in this make and model, 150 as pilot in command, 20 in the last 90 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 260° at 5 knots
- Visibility: 15 statute miles
- Lowest ceiling: none
- Temperature: 81 °F, dew point 72 °F
- Altimeter: 29.00 inHg
- Observed at: TUL, 60 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 19870613020179A](https://openairdocs.org/incident/19870613020179A), Jun 13, 1987: Beech 35BEECH, Cookson, OK, Destroyed. Leaking oil from an improperly secured pump caused a fire in engine area that spread to cockpit. Landed ok. Burned.

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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