# NTSB DEN89DQA01: Mccoy BD-5, N71HM, Farmington, NM, May 20, 1989

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Final report
- Date: May 20, 1989, 11:25 local (17:25 UTC)
- Place: Farmington, NM
- Location: 36.7413° N, 108.2299° W: Placed by OpenAirDocs at FOUR CORNERS RGNL (FMN), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=36.7413&lon=-108.2299&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report May 22, 1990
- Report: Approved by Office Director
- NTSB case key (mKey): 17548
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN89DQA01
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/17548/pdf
- Page: https://openairdocs.org/ntsb/DEN89DQA01

## Probable cause

THE MALFUNCTION OF THE AIRCRAFT ELECTRICAL SYSTEM DUE TO A FAULTY CIRCUIT BREAKER. THE SUBSEQUENT FAILURE OF THE ELECTRICAL SYSTEM RESULTED IN FAILURE OF THE ENGINE IGNITION SYSTEM AND LOSS OF ENGINE POWER.

## 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, takeoff - initial climb
  - electrical system,circuit breaker - shorted (cause)
  - electrical system - failure,total (cause)
  - ignition system - inoperative (cause)
- Forced landing, descent - emergency
- Hard landing, landing - roll
  - landing gear,main gear - collapsed
  - landing gear,nose gear - collapsed

## Aircraft

- Registration: [N71HM](https://openairdocs.org/deregistered/N71HM-1992-05-27), registration cancelled 1992-05-27, S/N 2061 (OpenAirDocs)
- Reported make and model: MCCOY BD-5
- Registry model: [Mccoy Hugh BD-5](https://openairdocs.org/model/mccoy-hugh-bd-5) (registry code 11307F4) (OpenAirDocs)
- Category: Airplane, amateur-built
- Serial number: 2061
- Airframe hours: 60
- Engines: HONDA EB-3 100 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Mc Coy, Hugh M.
- Registered owner: Hugh M Mccoy
- Airworthiness certificate: Special, Experimental (Special)
- Last inspection: Annual, April 25, 1989, 60 hours before
- Departed: FMN, FARMINGTON, NM
- Destination: FMN
- Airport: FMN, Four Corners Regional, runway 5, 6,500 × 150 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 42; commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 2, unknown; seat: front; flight hours: 2,680 total, 50 in this make and model, 2,650 as pilot in command

## Weather

- Conditions: Visual (VMC), Day
- Wind: 90° at 4 knots
- Lowest ceiling: none
- Temperature: 75 °F, dew point 30 °F
- Altimeter: 30.00 inHg
- Observed at: FMN

## 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 19890520012509A](https://openairdocs.org/incident/19890520012509A), May 20, 1989: Amtrbd BEDEBD5, Farmington, NM, Substantial damage. Smoke in cockpit on takeoff from a shorted circuit breaker. Pancaked on runway collapsing all three landing gears.

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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