# NTSB DEN86LA144: Hispano Aviacion ME109, N3109, Casper, WY, May 28, 1986

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: May 28, 1986, 08:51 local (14:51 UTC)
- Place: Casper, WY
- Location: 42.9059° N, 106.4636° W: Placed by OpenAirDocs at CASPER/NATRONA COUNTY INTL (CPR), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=42.9059&lon=-106.4636&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 16969
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN86LA144
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/16969/pdf
- Page: https://openairdocs.org/ntsb/DEN86LA144

## Sequence of events

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

- Loss of control - on ground/water, takeoff - roll/run
  - landing gear,normal brake system - failure,total (cause)
  - landing gear,normal brake system - locked (cause)
  - directional control - not possible, pilot in command (contributing factor)
- On ground/water encounter with terrain/water, takeoff - roll/run

## Analysis

DURING TAKEOFF GROUND ROLL ON A TEST FLT, THE ACFT LEFT BRAKE FAILED CAUSING THE LEFT MAIN WHEEL TO LOCK UP. THE PLT LOST DIRECTIONAL CONTROL AND THE ACFT DEPARTED THE LEFT SIDE OF THE RUNWAY WHERE IT GROUND LOOPED. THE AIRCRAFT WAS DESTROYED. THE PILOT WAS NOT INJURED.

## Aircraft

- Registration: [N3109](https://openairdocs.org/deregistered/N3109-2017-04-07), registration cancelled 2017-04-07, S/N 8-109-116-40 (OpenAirDocs)
- Reported make and model: Hispano Aviacion ME109
- Registry model: [Hispano-Aviacion S A La C4K(ME109)](https://openairdocs.org/model/hispano-aviacion-s-a-la-c4k-me109) (registry code 4380102) (OpenAirDocs)
- Registry engine: [Rolls-Royce MERLIN](https://openairdocs.org/engine/rolls-royce-merlin) (registry code 54502, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 8-109-116-40
- Airframe hours: 8000
- Engines: Rolls-Royce MERLIN 500-29 14000 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: James C. Wood
- Airworthiness certificate: Special, Experimental (Special)
- Last inspection: Annual, May 22, 1986, 2 hours before
- Airport: CPR, Natrona County Inter'L, runway 21, 10,200 × 150 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 53; airline transport; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 1, valid medical--w/ waivers/lim; seat: front; flight hours: 15,000 total, 15,000 as pilot in command, 75 in the last 90 days, 5 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 110° at 7 knots
- Visibility: 15 statute miles
- Lowest ceiling: none
- Temperature: 57 °F, dew point 43 °F
- Altimeter: 30.00 inHg
- Observed at: CPR

## 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 19860528019859A](https://openairdocs.org/incident/19860528019859A), May 28, 1986: Hspavn C4K, Casper, WY, Substantial damage. Lost directional control on takeoff, veered off runway. Found broken brake shoe retaining cotter pin.

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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