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Accidents · NTSB CEN09LA355 · Final report

Aero Commander S2R accident near Cordova, Illinois, June 12, 2009

On June 12, 2009 at about 9:23 pm local time, a Aero Commander S2R, registered N1734S, was destroyed in an accident during maneuvering (low-alt flying) near Cordova, Illinois (Frank'S Flying Service airport). It was an aerial application (crop spraying) flight under agricultural flying rules (Part 137). 1 person was killed. The weather was visual conditions (good weather).

The NTSB's probable cause their words, unchanged

The pilot’s failure to maintain clearance with terrain after clearing an obstacle during an agricultural application pass.

Source: NTSB aviation accident database, copy made November 2, 2026. Docket and reports at the NTSB.

What the record shows

Date
June 12, 2009 · about 9:23 pm local time · cases in 2009
Place
Cordova, Illinois · Frank'S Flying Service · cases near this airport · map
Type
Accident
Injuries
1 person was killed.
Weather
visual conditions (good weather)
Aircraft
Aero Commander S2R · all S2Rs on the register
Registration
N1734S · registry record · serial 1437R
Damage
Destroyed
Flight
Aerial application (crop spraying) flight · agricultural flying rules (Part 137)

The NTSB's narrative final · quoted from the NTSB record

The pilot was conducting an agricultural application pass at the time of the accident. A witness stated that the airplane pulled up over a house, located about mid-field, during a spray run. The witness commented that the airplane pulled up higher than others he had observed, adding that most airplanes “just skim[ed] the trees” when they flew over the house. He reported that the accident airplane dropped back down after it cleared the house, apparently to resume spraying; however, it impacted the ground. The airplane bounced once before settling back down and sliding to a stop. A postaccident examination of the airplane did not reveal any failures or malfunctions consistent with a preimpact failure. The pilot had about 200 hours of agricultural application experience the previous season. However, he had recently started flying the accident airplane, which was about 15 knots faster in spray runs than the airplane the pilot had flown the previous season. The pilot had accumulated about 28 hours in the accident airplane. Postmortem toxicology testing on the pilot’s blood was consistent with use of marijuana and propoxyphene, a prescription narcotic painkiller. However, the source of the blood was not specified. Accordingly, a reliable estimate could not be made of the time of last use or the probability of impairment due to either substance. The pilot had not indicated the use of any medication or illegal drugs or the presence of any medical condition at the time of his most recent medical certificate application.

The complete narrative as the NTSB published it. The NTSB's docket holds the report as a PDF and any photographs, statements and other documents from the investigation.

The factual record from the NTSB's investigation tables, in plain English

What happened, in order

  1. Low altitude operation/event during maneuvering (low-alt flying) defining event
  2. Collision with terrain or object (not controlled flight into terrain) during maneuvering (low-alt flying)

The NTSB's findings

  • cause Aircraft › Aircraft oper/perf/capability › Performance/control parameters › Altitude › Not attained/maintained
  • cause Personnel issues › Task performance › Use of equip/info › Aircraft control › Pilot

Pilot

  • Certificate: commercial pilot
  • Ratings: single-engine land; instrument: airplane
  • Flight time: 362 hours in all; 28 in this make and model
  • Medical certificate: Class 2 (with waivers/limitations)
  • Seat: sngl
  • Injury: fatal

The aircraft

  • Airframe total time: 8,715 hours
  • Last inspection: annual inspection, June 30, 2008
  • Seats: 1
  • Landing gear: fixed
  • Engine: P&W R1340 SERIES (piston); 0 hours total
  • Fire on the ground

The flight

  • Departed from: 4IL5 Morrison IL at 9:15 pm
  • Destination: 4IL5 Morrison IL
  • Flight plan: not recorded

Weather at the time

  • Light: daylight
  • Visibility: 10 statute miles
  • Sky: a few clouds at 7,500 ft
  • Temperature: 79°F (26°C), dew point 52°F (11°C)
  • Altimeter: 29.93 inHg
  • Observation at 9:35 pm from SQI, 19 miles away

Injuries

FatalSeriousMinorNone
Flight crew1

Documents from the investigation the NTSB's docket: the evidence folder behind the report

5 documents, released by the NTSB on November 17, 2009. View them here, or download them; the NTSB redacts some personal details before release, and this site shows the NTSB's own titles rather than its file names.

The same docket at the NTSB · documents without a copy here are fetched from the NTSB when you open them.

Connections how this case links to the rest of the register

Aircraft
Place

The whole map of how records connect · these connections as data: /graph/accident/CEN09LA355.json.

The bigger picture in Aviation Analytics: accidents over time since 1982, by model, by phase of flight and conditions, by place and on the map.

Everything on this page comes from the NTSB's public records. The narrative, probable cause and findings are the NTSB's own words; the coded tables behind the report are written out in plain English, with pilots' ages, home towns and medical details left out. The documents and photographs are the NTSB's docket, shown as the NTSB released them. This site's own text does not name anyone involved, its policy at this time. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.