# NTSB MIA87LA249: Mooney M20J, N201UX, Macclenny, FL, September 16, 1987

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: September 16, 1987, 15:40 local (19:40 UTC)
- Place: Macclenny, FL
- Coordinates: 30.280643, -82.119049 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=30.2806&lon=-82.1190&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report January 11, 1989
- Report: Approved by Office Director
- NTSB case key (mKey): 31965
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA87LA249
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/31965/pdf
- Page: https://openairdocs.org/ntsb/MIA87LA249

## 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, cruise - normal
  - throttle/power lever,linkage - worn (cause)
  - throttle/power lever,linkage - failure,total (cause)
  - throttle/power lever,linkage - disconnected (cause)
- Forced landing, descent - emergency
- On ground/water collision with object, landing - roll
  - object - vehicle (contributing factor)
  - object - building(nonresidential) (contributing factor)

## Analysis

WHILE EN ROUTE AT 8000', THE ENG LOST POWER & THE PLT OBTAINED VECTORS FOR AN EMERG LANDING AT AN ARPT WITH A GRASS STRIP. DRG THE ROLL-OUT, THE LEFT WING TIP HIT A HAY WAGON NEAR THE END OF THE RWY, THEN THE ACFT VEERED & STRUCK A HANGAR. AN EXAM OF THE THROTTLE LINKAGE REVEALED THAT A SWIVEL JOINT HAD BROKEN OFF OF THE THROTTLE ARM ATTACHING BOLT, WHICH ALLOWED THE FUEL INJECTOR TO VIBRATE TO IDLE. THE FAILURE OCCURRED WHERE THE SHANK AREA OF THE ATTACHING BOLT HAD BEEN RUBBING AGAINST THE ATTACHED THROTTLE CABLE FITTING & HAD BECOME WORN.

## Aircraft

- Registration: [N201UX](https://openairdocs.org/aircraft/N201UX), registered now, S/N 24-0391, built 1977 (OpenAirDocs)
- Reported make and model: MOONEY M20J
- Registry model: [Mooney M20J](https://openairdocs.org/model/mooney-m20j) (registry code 5870219) (OpenAirDocs)
- Registry engine: [Lycoming I0360 series](https://openairdocs.org/engine/lycoming-i0360-series) (registry code 41515, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 24-0391
- Airframe hours: 3061
- Engines: LYCOMING IO-360-A3B6D 200 horsepower reciprocating
- Damage: Substantial damage
- Flight: Part 91
- Registered owner: Flight Express Inc.
- Airworthiness certificate: Standard, Normal
- Departed: CRG, JACKSONVILLE, FL
- Destination: TLH, TALLAHASSEE, FL
- Flight plan: IFR
- Airport: FL11, Thrifts, runway 9, 1,800 × 95 ft, grass/turf

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 44; commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: left; flight hours: 2,802 total, 169 in this make and model, 2,544 as pilot in command, 176 in the last 90 days, 7 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 150° at 2 knots
- Visibility: 6 statute miles
- Lowest ceiling: 25,000 ft broken
- Temperature: 90 °F, dew point 73 °F
- Altimeter: 29.00 inHg
- Observed at: JAX, 27 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 19870916053359A](https://openairdocs.org/incident/19870916053359A), Sep 16, 1987: Mooney M20J, Macclenny, FL, Substantial damage. Engine malfunction. Landed long. On rollout struck a hay wagon. Throttle rod failed. Had loss of throttle control.

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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