# NTSB FTW95LA381: Great Lakes 2T-1A-2, N5761G, Boulder, CO, September 4, 1995

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: September 4, 1995, 11:30 local (17:30 UTC)
- Place: Boulder, CO
- Coordinates: 40.040576, -105.369056 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=40.0406&lon=-105.3691&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report November 30, 1995
- Report: Approved by Office Director
- NTSB case key (mKey): 19572
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW95LA381
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/19572/pdf
- Page: https://openairdocs.org/ntsb/FTW95LA381

## Probable cause

FAILURE BY THE PILOT TO MAINTAIN CONTROL OF THE AIRCRAFT DURING LANDING ROLL.

## Sequence of events

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

- Nose down, landing - roll
  - aircraft control - not maintained, pilot in command (cause)

## Analysis

DURING LANDING ROLL, AT THE COMPLETION OF A LOCAL AREA FLIGHT, THE PILOT'S LEFT FOOT SLIPPED OFF THE RUDDER/BRAKE PEDAL. WHILE REGAINING HIS FOOT POSITION, HE LOST CONTROL OF THE AIRCRAFT AND IT NOSED DOWN ON THE RUNWAY, COMING TO REST STANDING ON THE NOSE. THE PILOT, WITH ASSISTANCE, STOOD THE AIRCRAFT BACK ON ITS LANDING GEAR AND PUSHED IT TO HIS HANGAR.

## Factual narrative

On September 4, 1995, at 1130 mountain daylight time, a Great Lakes 2T-1A, N5761G, nosed down during landing roll at Boulder Municipal Airport, Boulder, Colorado.  The commercial pilot was not injured and the aircraft sustained substantial damage.  Visual meteorological conditions prevailed for this local area 14 CFR Part 91 flight and no flight plan was filed.  The flight departed Boulder at 1030.

According to the pilot, during landing roll, his left foot slipped off the brake pedal and during the ensuing effort to get the aircraft under control he allowed the stick to ease forward.  He said that when he applied back pressure, it had no effect and the aircraft nosed down and came to rest on the runway standing on its nose.  The pilot said he exited the aircraft, and with help, got it back on the landing gear and pushed it to his hangar.

According to the pilot and the FAA inspector who examined the aircraft, the propeller blades, spinner, and upper left wing sustained damage.

Wind at the time of the accident was from 120 degrees magnetic at six knots.  The landing was performed on runway 08.

## Aircraft

- Registration: [N5761G](https://openairdocs.org/aircraft/N5761G), registered now, S/N 0831, built 1980 (OpenAirDocs)
- Reported make and model: GREAT LAKES 2T-1A-2
- Registry model: [Great Lakes 2T-1A-2](https://openairdocs.org/model/great-lakes-2t-1a-2) (registry code 3910101) (OpenAirDocs)
- Registry engine: [Lycoming AEIO-360 series](https://openairdocs.org/engine/lycoming-aeio-360-series) (registry code 41522, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 0831
- Airframe hours: 558
- Engines: LYCOMING AEIO-360-B1G6 180 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Richard N. Hall
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, August 21, 1995, 3 hours before
- Departed: 1V5
- Airport: 1V5, Boulder, runway 8, 4,100 × 75 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 67; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; seat: rear; flight hours: 900 total, 400 in this make and model, 900 as pilot in command, 22 in the last 90 days, 3 in the last 30 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 120° at 6 knots
- Visibility: 75 statute miles
- Lowest ceiling: none
- Temperature: 88 °F, dew point 55 °F
- Altimeter: 30.00 inHg
- Observed at: BJC, 7 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 19950904028379A](https://openairdocs.org/incident/19950904028379A), Sep 4, 1995: Grtlks 2T1A2, Boulder, CO, Substantial damage. Landing. Pilots foot slipped off rudder pedal. Lost control and nosed down on runway.

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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