# NTSB ATL03LA129: William Allen MONI-1, N240A, Timberlake, NC, August 18, 2003 - Type: NTSB accident investigation - Classification: Accident · Serious injuries · Limited investigation · Final report - Date: August 18, 2003, 14:30 local (18:30 UTC) - Place: Timberlake, NC - Coordinates: 36.286945, -78.983329 - Nearby events: https://openairdocs.org/map.md?lat=36.2869&lon=-78.9833&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 September 1, 2004 - Report: Approved by Office Director - Parties: Greensboro FSDO - NTSB case key (mKey): 57770 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ATL03LA129 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/57770/pdf - Page: https://openairdocs.org/ntsb/ATL03LA129 ## Probable cause The pilot's failure to maintain adequate airspeed which resulted in a stall and subsequent collision with the ground. ## 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 - inadvertent, pilot in command - In flight collision with terrain/water, descent - uncontrolled - terrain condition - ground ## Analysis According to a witness, approximately 500 feet past the departure end of the runway, the airplane banked steeply to the left. The witness stated he "could see the entire top of the airplane. Then the airplane turned nose down and spun about one rotation to the left and impacted the ground". Examination of the downed airplane found it in a nose down attitude at the accident site. ## Factual narrative On August 18, 2003, at 1430 eastern daylight time William Allen Moni-1, N240A an experimental airplane owned and operated by a commercial pilot collided with the ground shortly after takeoff from runway 6, at the Roxboro Person County Airport Timberlake, North Carolina. The personal flight was operated under the provisions of Title 14 CFR Part 91, and visual flight rules. Visual meteorological conditions prevailed and no flight plan was filed. The commercial pilot received serious injuries and the airplane sustained substantial damage. The flight originated from Timberlake, North Carolina, on August 18, 2003, at 1425. In a written statement provided by the commercial pilot he stated "I remember nothing of the flight or accident; so I can provide no insight into the actual events of the accident". According to a witness, the airplane took off from runway 6, and approximately 150 feet above the ground, the witness heard the engine power back and then advance in power. Approximately 500 feet past the departure end of the runway, the airplane banked steeply to the left. The witness stated he "could see the entire top of the airplane. Then the airplane turned nose down and spun about one rotation to the left and collided with the ground". According to the witness, he heard the engine running during the entire flight. Examination of the downed airplane found it in a nose down attitude at the accident site. Wreckage debris was scattered in the immediate vicinity of the main wreckage. The inboard spars of both wings were damaged. The cowling had crush damage, and the cockpit plexiglass canopy was broken. The wooden propeller asembly was broken. ## Aircraft - Registration: [N240A](https://openairdocs.org/deregistered/N240A-2004-02-13), registration cancelled 2004-02-13, S/N 003, built 1993 (OpenAirDocs) - Reported make and model: William Allen MONI-1 - Registry model: [Allen William D MONI](https://openairdocs.org/model/allen-william-d-moni) (registry code 05620KY) (OpenAirDocs) - Registry engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999) (OpenAirDocs) - Category: Airplane, amateur-built - Serial number: 003 - Airframe hours: 60 - Engines: KFM 107 25 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Airworthiness certificate: Special, Experimental (Special) - Last inspection: Condition, August 17, 2003, 0 hours before - Departed: TDF, Timberlake, NC - Destination: TDF, Timberlake, NC - Airport: TDF, Pearson City, runway 06, 5,700 × 100 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 60; injuries: serious; commercial; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2, with waivers/limitations; last flight review October 30, 2002; seat: center; flight hours: 4,456 total, 12 in this make and model, 4,400 as pilot in command, 35 in the last 90 days, 12 in the last 30 days ## Weather - Conditions: Visual (VMC), Day - Wind: 0° at 0 knots - Visibility: 7 statute miles - Lowest ceiling: none - Temperature: 84 °F, dew point 72 °F - Altimeter: 30.02 inHg - Observed at: RDU, 50 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 20030818021159A](https://openairdocs.org/incident/20030818021159A), Aug 18, 2003: Amtr MONI, Roxboro, NC, Substantial damage. (-23) On 8/18/03 at 1430, aircraft 240A a Moni experimental/amatuer built powered glider aircraft was climbing out from Person County Airport (tdf) in Roxboro,… 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.