# NTSB CHI02LA029: Schenfield Acro Sport II, N90287, Keosauqua, IA, November 12, 2001

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: November 12, 2001, 17:00 local (23:00 UTC)
- Place: Keosauqua, IA
- Coordinates: 40.729488, -91.959609 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=40.7295&lon=-91.9596&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report July 2, 2002
- Report: Approved by Office Director
- Parties: FAA
- NTSB case key (mKey): 53775
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI02LA029
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/53775/pdf
- Page: https://openairdocs.org/ntsb/CHI02LA029

## Probable cause

Aircraft control not maintained by pilot during landing.

## Sequence of events

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

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

## Analysis

The airplane sustained substantial damage when it nosed over during landing roll at the pilot's private airstrip.  The pilot reported, "Upon touchdown-over controlled nose elevation and applied brakes too hard-had prop strike and flipped plane on back."

## Factual narrative

On November 12, 2001, at 1700 central standard time, an experimental Schenfield Acro Sport II, N90287, sustained substantial damage when it nosed over during landing roll.  The 14 CFR Part 91 personal flight had departed a private grass airstrip at a neighboring farmstead located near Keosauqua, Iowa, at 1630, and was en route to the pilot's grass airstrip.  The private pilot was not injured.  Visual meteorological conditions prevailed and no flight plan was filed.

The pilot reported, "Upon touchdown-over controlled nose elevation and applied brakes too hard-had prop strike and flipped plane on back."

## Aircraft

- Registration: [N90287](https://openairdocs.org/deregistered/N90287-2003-02-13), registration cancelled 2003-02-13, S/N 140, built 1981 (OpenAirDocs)
- Reported make and model: Schenfield Acro Sport II
- Registry model: [Schenfield James L ACRO SPORT](https://openairdocs.org/model/schenfield-james-l-acro-sport) (registry code 05655DS) (OpenAirDocs)
- Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs)
- Category: Airplane, amateur-built
- Serial number: 140
- Airframe hours: 868
- Engines: Lycoming O-360 160 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: George Winheim
- Airworthiness certificate: Special, Experimental (Special)
- Last inspection: Annual, May 12, 2001, 14 hours before
- Departed: Keosauqua, IA
- Airport: Lone Pine Farm, runway 135, 1,550 × 70 ft, grass/turf

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 55; injuries: none; private; airplane ratings: single-engine land; medical: class 3; last flight review October 17, 2001; seat: center; flight hours: 1,034 total, 11 in this make and model, 1,012 as pilot in command, 17 in the last 90 days, 17 in the last 30 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 150° at 9 knots
- Visibility: 9 statute miles
- Lowest ceiling: 9,500 ft broken
- Temperature: 61 °F, dew point 45 °F
- Altimeter: 30.17 inHg
- Observed at: DSM, 100 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 20011112033569A](https://openairdocs.org/incident/20011112033569A), Nov 12, 2001: Amtr ACROSPORT, Keosauqua, IA, No damage. (-23) The aircraft was landing on a farm strip and the pilot said he applied too much forward stick and too much braking, which caused the aircraft to flip…

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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