# NTSB CHI02LA276: Cessna T188C, N9432J, Olivia, MN, September 10, 2002 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: September 10, 2002, 08:45 local (13:45 UTC) - Place: Olivia, MN - Coordinates: 44.778331, -95.033332 - Nearby events: https://openairdocs.org/map.md?lat=44.7783&lon=-95.0333&mi=10 - Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report September 30, 2003 - Report: Approved by Office Director - Parties: Minneapolis FSDO - NTSB case key (mKey): 55677 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI02LA276 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/55677/pdf - Page: https://openairdocs.org/ntsb/CHI02LA276 ## Probable cause The fouled spark plugs and the terrain condition encountered during the aborted takeoff. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Loss of engine power, takeoff - ignition system,spark plug - fouled (cause) - Forced landing, descent - emergency - In flight collision with terrain/water, takeoff - aborted - terrain condition - crop ## Analysis The agricultural airplane was substantially damaged during an off airport landing immediately after takeoff when the engine reportedly experienced a partial loss of power by about 200 rpm. The airplane came to rest in a cornfield about 1/2 mile from the runway. Inspection of the engine revealed that the number 1 and 3 spark plugs contained lead deposits and would not fire when under a pressure of 120 psi. The spark plugs were able to fire once they were cleaned. ## Factual narrative On September 10, 2002, at 0845 central daylight time, a Cessna T188C, N9432J, operated by Willmar Aerial Spraying Service Inc., was substantially damaged during an aborted takeoff from runway 29 (3,498 feet by 75 feet, asphalt) at Olivia Regional Airport, Olivia, Minnesota. Instrument meteorological conditions prevailed at the time of the accident. The 14 CFR Part 137 agricultural flight was not operating on a flight plan. The commercial pilot was uninjured. The local flight was originating at the time of the accident. The pilot stated that immediately after takeoff, the engine started to lose power. The engine lost 200 rpm and the pilot elected to perform an aborted takeoff. The airplane came to rest on a corn field about 1/2 mile from the departure end of runway 29. Examination of the engine by a Federal Aviation Administration revealed that the number 1 and number 3 lower spark plugs were oil filled and contained lead deposits. The oil was removed and the plugs were operationally checked under pressure. Under standard pressure, the plugs fired intermittently, and under pressure (120 psi) the plug did not fire. The plugs were then cleaned, tested, and subsequently fired under pressure. ## Aircraft - Registration: [N9432J](https://openairdocs.org/deregistered/N9432J-2003-12-30), registration cancelled 2003-12-30, S/N T18803804T, built 1981 (OpenAirDocs) - Reported make and model: Cessna T188C - Registry model: [Cessna T188C](https://openairdocs.org/model/cessna-t188c) (registry code 2073012) (OpenAirDocs) - Registry engine: [Continental TSIO-520 series](https://openairdocs.org/engine/continental-tsio-520-series) (registry code 17040, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: T18803804T - Airframe hours: 4883 - Engines: Continental TSIO-520-T 310 horsepower reciprocating - Damage: Substantial damage - Flight: Aerial application, Part 137 - Registered owner: Willmar Aerial Spraying Inc. - Airworthiness certificate: Special, Restricted (Special) - Last inspection: Annual, April 29, 2002, 150 hours before - Departed: OVL, Olivia, MN - Destination: OVL - Airport: OVL, Olivia Regional, runway 29, 3,498 × 75 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 37; injuries: none; commercial; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 2, valid medical--no waivers/lim.; last flight review February 21, 2002; seat: center; flight hours: 8,210 total, 1,500 in this make and model, 8,125 as pilot in command, 400 in the last 90 days, 120 in the last 30 days, 0 in the last 24 hours ## Weather - Conditions: Instrument (IMC), Day - Wind: 320° at 8 knots - Visibility: 7 statute miles - Lowest ceiling: 200 ft overcast - Temperature: 59 °F, dew point 55 °F - Altimeter: 30.15 inHg - Observed at: OVL ## 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 20020910024919A](https://openairdocs.org/incident/20020910024919A), Sep 10, 2002: Cessna T188C, Olivia, MN, Substantial damage. (-23) Aircraft was departing runway 29 at Olivia report. Pilot stated to inspector that the aircraft was losing power, but had not lost power. RPM was in the… 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.