# NTSB FTW94LA260: Maule M-5-210TC, N5641A, Mosca, CO, August 3, 1994

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Limited investigation · Final report
- Date: August 3, 1994, 07:50 local (13:50 UTC)
- Place: Mosca, CO
- Coordinates: 37.650081, -105.879302 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=37.6501&lon=-105.8793&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious
- Status: Completed, report January 26, 1995
- Report: Approved by Office Director
- NTSB case key (mKey): 19132
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW94LA260
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/19132/pdf
- Page: https://openairdocs.org/ntsb/FTW94LA260

## Probable cause

THE PILOT'S FAILURE TO ATTAIN THE PROPER TOUCHDOWN POINT.

## Sequence of events

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

- Overrun, landing - roll
  - proper touchdown point - not attained, pilot in command (cause)
  - object - fence
- On ground/water encounter with terrain/water, landing - roll
  - terrain condition - berm

## Analysis

THE PILOT REMEMBERED TAKING OFF FROM HIS RANCH AIRSTRIP, BUT COULD NOT RECALL THE LANDING OR THE ACCIDENT. TIRE TRACKS WERE FOUND 500 FEET DOWN THE 800-FOOT DIRT RUNWAY. THE TRACKS WENT OFF THE RUNWAY AND THROUGH TWO FENCES. AN ADDITIONAL SET OF TRACKS WERE FOUND ON THE OTHER SIDE OF A HIGHWAY. THESE TRACKS WENT THROUGH A THIRD FENCE AND TERMINATED AT THE AIRPLANE, WHICH WAS LOCATED AGAINST AN ABANDONED RAILROAD TRACK BERM. AN FAA INSPECTOR EXAMINED THE WRECKAGE AND FOUND NO EVIDENCE OF MECHANICAL FAILURE OR MALFUNCTION.

## Factual narrative

On August 3, 1994, approximately 0750 mountain daylight time, N5641A, a Maule M-5-210TC, was substantially damaged when it impacted terrain near Mosca, Colorado.  The private pilot received serious injuries.  Visual meteorological conditions prevailed.

According to the pilot/operator report, the pilot remembered taking off from his ranch airstrip to inspect his goats, but could not recall the landing or the accident.  The pilot said he was familiar with his airstrip, having flown into and out of it for the past 15 years.  The pilot added he believed he may have experienced a problem with the throttle.

There were no known witnesses to the accident.  According to the Federal Aviation Administration inspector who went to the accident site, the beginning of tire tracks was noted 500 feet down the 800-foot dirt runway.  The inspector said the tire tracks went off the west end of the runway and through two fences.  Past the fences was a highway, but there were no contact  marks on it.  An additional set were found on the other side of the highway that went through a third fence.  The tracks terminated at the airplane, which was located against an abandoned railroad track berm.  The inspector reported finding no evidence of mechanical failure or malfunction of the engine or flight controls.

## Aircraft

- Registration: [N5641A](https://openairdocs.org/aircraft/N5641A), registered now, S/N 9005C (OpenAirDocs)
- Reported make and model: MAULE M-5-210TC
- Registry model: [Maule M-5-210TC](https://openairdocs.org/model/maule-m-5-210tc) (registry code 5460140) (OpenAirDocs)
- Registry engine: [Lycoming T0-360 series](https://openairdocs.org/engine/lycoming-t0-360-series) (registry code 41528, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 9005C
- Airframe hours: 961
- Engines: LYCOMING TO-360-F1A6D 210 horsepower reciprocating
- Damage: Substantial damage
- Flight: Business, Part 91
- Registered owner: Bishop, Truman D.
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, June 2, 1994, 65 hours before
- Airport: NONE, Bishop, runway 9, 800 × 35 ft, dirt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 52; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; seat: left; flight hours: 837 total, 20 in this make and model, 837 as pilot in command, 34 in the last 90 days, 25 in the last 30 days

## Weather

- Conditions: Visual (VMC), Day
- Visibility: 7 statute miles
- Lowest ceiling: none
- Temperature: 46 °F, dew point 46 °F
- Altimeter: 30.00 inHg
- Observed at: ALS, 12 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 19940803020069A](https://openairdocs.org/incident/19940803020069A), Aug 3, 1994: Maule M5210C, Mosca, CO, Substantial damage. Landing on short dirt runway ran off thru three fences and hit railroad berm. Pilot has no recall of event.

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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.