# NTSB FTW95LA395: Sinclair 1100R, N9264C, Guthrie, OK, September 14, 1995

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Limited investigation · Final report
- Date: September 14, 1995, 18:00 local (23:00 UTC)
- Place: Guthrie, OK
- Coordinates: 35.840641, -97.420143 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=35.8406&lon=-97.4201&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious
- Status: Completed, report December 19, 1995
- Report: Approved by Office Director
- NTSB case key (mKey): 19583
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW95LA395
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/19583/pdf
- Page: https://openairdocs.org/ntsb/FTW95LA395

## Probable cause

THE PILOT'S FAILURE TO MAINTAIN AIRSPEED RESULTING IN AN INADVERTENT STALL.

## Sequence of events

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

- Loss of control - in flight, takeoff - initial climb
  - airspeed - not maintained, pilot in command (cause)
  - stall/spin - inadvertent, pilot in command (cause)
- In flight collision with terrain/water, descent - uncontrolled

## Analysis

DURING TAKEOFF THE AIRPLANE WAS OBSERVED TO CLIMB WITH A HIGH PITCH ATTITUDE. THE WITNESS REPORTED THAT THE AIRPLANE ROLLED TO THE RIGHT AND DESCENDED TO GROUND IMPACT.

## Factual narrative

On September 14, 1995, at 1800 central daylight time, a Sinclair 1100R, N9264C, collided with the ground during the takeoff initial climb near Guthrie, Oklahoma.  The private pilot received serious injuries and the airplane was destroyed.  The airplane was operated as a personal flight under Title 14 CFR Part 91.  Visual meteorological conditions prevailed throughout the area and a flight plan was not filed.

During personal interviews, conducted by the Federal Aviation Administration (FAA) inspector, the owner stated that the airplane obtained the FAA airworthiness certificate on September 13, 1995. The owner and another pilot reported that they flew the airplane earlier in the evening and noted no discrepancies.  Witnesses then observed the airplane, flown by the private pilot, depart the private grass airstrip, enter a "high pitch attitude, stall at about 200 feet above the ground, roll to the right, and descend uncontrolled to the ground."

The pilot stated, on the enclosed Pilot/Operator report, that he "attempted to climb too steeply for airspeed attained resulting in a stall, spin."  He further reported that the airplane functioned "fine."

## Aircraft

- Registration: [N9264C](https://openairdocs.org/deregistered/N9264C-1997-03-10), registration cancelled 1997-03-10, S/N 887 (OpenAirDocs)
- Reported make and model: SINCLAIR 1100R
- Registry model: [Sinclair Peter TEAM MINI-MAX 1100R](https://openairdocs.org/model/sinclair-peter-team-mini-max-1100r) (registry code 05630D2) (OpenAirDocs)
- Category: Airplane, amateur-built
- Serial number: 887
- Airframe hours: 1
- Engines: ROTAX 447 40 horsepower reciprocating
- Damage: Destroyed
- Flight: Personal, Part 91
- Operator: William E. Terry
- Registered owner: Peter Sinclair
- Airworthiness certificate: Special, Experimental (Special)
- Last inspection: Annual, September 13, 1995, 1 hours before
- Departed: 00K6
- Airport: 00K6, Ellis

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 60; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; seat: center; flight hours: 40 total

## Weather

- Conditions: Visual (VMC), Day
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 82 °F
- Altimeter: 30.00 inHg

## 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 19950914029909A](https://openairdocs.org/incident/19950914029909A), Sep 14, 1995: Amtr 1100R, Guthrie, OK, Destroyed. Observed high nose up pitch on takeoff. Rolled right and dived into ground.

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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