# NTSB FTW82FPM15: Beech H35, N4800Y, Tulsa, OK, August 12, 1982

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Final report
- Date: August 12, 1982, 13:49 local (18:49 UTC)
- Place: Tulsa, OK
- Location: 36.1540° N, 95.9928° W: Placed by OpenAirDocs: center of Tulsa, OK, within about 8 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=36.1540&lon=-95.9928&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 2 fatal
- Status: Completed, report August 12, 1983
- Report: Approved by Office Director
- NTSB case key (mKey): 72877
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW82FPM15
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/72877/pdf
- Page: https://openairdocs.org/ntsb/FTW82FPM15

## Sequence of events

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

- Loss of engine power(partial) - mech failure/malf, takeoff - initial climb
  - fuel system,pump - foreign object (cause)
  - fuel system,pump - contamination (cause)
  - fuel system,pump - blocked(total) (cause)
  - fluid,fuel - starvation (cause)
- Forced landing, maneuvering - turn to landing area (emergency)
- Loss of control - in flight, maneuvering - turn to landing area (emergency)
  - descent - improper, pilot in command (cause)
  - flight controls - improper use of, pilot in command (cause)
  - airspeed - not maintained, pilot in command (cause)
  - stall - inadvertent, pilot in command

## Analysis

AIRCRAFT LOST POWER DURING TAKEOFF. PILOT TRIED TO TURN BACK TO AIRPORT IN A LEFT BANK DESCRIBED AS 60 TO 90 DEGREES. AIRCRAFT STALLED AND CRASHED ABOUT 1300 FEET EAST OF TAKEOFF POINT. DURING THE INVESTIGATION THE FUEL PUMP WAS PLACED ON A FLOW BENCH & ON THE INITIAL TEST WOULD NOT PUMP FUEL. THE VAPOR SEPARATOR TOWER COVERPLATE WAS REMOVED & A FOREIGN OBJECT WAS OBSERVED IN THE ORIFICE OF THE VAPOR EJECTOR. THERE WERE PARTICLES OF A BLACK SUBSTANCE FLOATING IN THE SEPARATOR TOWER. WHEN THE FUEL WAS POURED ONTO A WHITE TOWEL THE PARTICLES DISCOLORED THE TOWEL AS GRAPHITE MIGHT DO. AFTER THE VAPOR TOWER & EJECTOR ORIFICE WERE CLEANED, THE PUMP OPERATED NORMALLY.

## Aircraft

- Registration: N4800Y (not matched to a registry record)
- Reported make and model: BEECH H35
- Category: Airplane
- Serial number: D4938
- Airframe hours: 4742
- Engines: CONTINENTAL O-470-N 265 horsepower reciprocating
- Damage: Destroyed
- Flight: Part 91
- Operator: Westwings Inc.
- Registered owner: Westwings Inc.
- Departed: TULSA, OK
- Destination: TULSA, OK
- Airport: Tulsa Intl, runway 17R, 5,500 × 100 ft, concrete

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 26; private; airplane ratings: single-engine land; medical: class 3, valid medical--no waivers/lim.; flight hours: 499 total, 190 in this make and model

## Weather

- Conditions: Visual (VMC), Day
- Wind: 18° at 11 knots
- Visibility: 15 statute miles
- Lowest ceiling: 4,500 ft broken
- Temperature: 199 °F
- Altimeter: 30.00 inHg

## 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 19820812037859A](https://openairdocs.org/incident/19820812037859A), Aug 12, 1982: Beech H35, Tulsa, OK, Destroyed. Engine quit on climbout for test flight of overhauled engine. Stalled trying to return. Contaminated fuel pump.

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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