# NTSB FTW87DPJ05: de Havilland DHC-1B-2S5, N320HP, Claremore, OK, March 27, 1987

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Final report
- Date: March 27, 1987, 17:49 local (23:49 UTC)
- Place: Claremore, OK
- Coordinates: 36.31005, -95.610816 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=36.3100&lon=-95.6108&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious
- Status: Completed, report May 2, 1988
- Report: Approved by Office Director
- NTSB case key (mKey): 22177
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW87DPJ05
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/22177/pdf
- Page: https://openairdocs.org/ntsb/FTW87DPJ05

## Sequence of events

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

- Loss of engine power(total) - nonmechanical, takeoff - initial climb
  - fuel system,vent - blocked(total) (cause)
  - aircraft preflight - inadequate, pilot in command (cause)
  - fluid,fuel - starvation (cause)
- Forced landing, descent - emergency
- In flight collision with terrain/water, landing - flare/touchdown

## Analysis

MUD DAUBERS PLUGGED THE FUEL TANK VENTS RESULTING IN FUEL STARVATION AND ENGINE FAILURE. THE ACFT RECEIVED SUBSTANTIAL DAMAGE DURING THE FORCED LNDG AND THE PLT WAS SERIOUSLY INJURED.

## Aircraft

- Registration: [N320HP](https://openairdocs.org/deregistered/N320HP-1988-08-11), registration cancelled 1988-08-11, S/N 231 (OpenAirDocs)
- Reported make and model: de Havilland DHC-1B-2S5
- Registry model: [Dehavilland DHC-1B-2-S5](https://openairdocs.org/model/dehavilland-dhc-1b-2-s5) (registry code 2801739) (OpenAirDocs)
- Category: Airplane
- Serial number: 231
- Airframe hours: 3360
- Engines: LYCOMING O-540 320 horsepower reciprocating
- Damage: Destroyed
- Flight: Personal, Part 91
- Operator: Robert W. Dean
- Registered owner: Thunderbird Park Inc
- Airworthiness certificate: Special, Experimental (Special)
- Last inspection: Annual, July 1, 1986, 6 hours before
- Departed: CLAREMORE, OK
- Destination: CLAREMORE, OK
- Airport: Robert W. Dean

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 61; private; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 3, valid medical--w/ waivers/lim; seat: rear; flight hours: 1,122 total, 5 in this make and model

## Weather

- Conditions: Visual (VMC), Day
- Lowest ceiling: none

## 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 19870327007629A](https://openairdocs.org/incident/19870327007629A), Mar 27, 1987: Dhav DHC1B2S5, Claremore, OK, Destroyed. The engine failed on takeoff. Insect nests were found blocking the fuel vents.

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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