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Accidents · NTSB CHI94LA240 · Final report

Cessna A188B accident near Wymore, Nebraska, July 23, 1994

On July 23, 1994 at about 1:15 pm local time, a Cessna A188B, registered N9140G, was destroyed in an accident near Wymore, Nebraska. It was an aerial application (crop spraying) flight under agricultural flying rules (Part 137). 1 person had minor injuries. The weather was visual conditions (good weather).

The NTSB's probable cause their words, unchanged

failure of the fuel injector pump due to improper assembly.

Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.

What the record shows

Date
July 23, 1994 · about 1:15 pm local time
Place
Wymore, Nebraska · map
Type
Accident
Injuries
1 person had minor injuries.
Weather
visual conditions (good weather)
Aircraft
Cessna A188B · all A188Bs on the register
Registration
N9140G · no longer on the register · serial 18801392T
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 reported he was about 100 feet AGL when the engine lost power. He made an emergency landing in a plowed field about one half mile from the departure end of the runway. Investigation revealed the fuel injector pump failed because a spring retaining plate was not installed.

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

Pilot

  • Certificate: commercial pilot
  • Ratings: single-engine land
  • Flight time: 4,489 hours in all; 586 in this make and model; 62 in the last 90 days; 32 in the last 30 days; 4,489 as pilot in command
  • Medical certificate: Class 2 (valid medical--w/ waivers/lim.)
  • Seat: ctr

The aircraft

  • Airframe total time: 3,704 hours
  • Last inspection: annual inspection, April 24, 1994; 44 hours since
  • Maximum gross weight: 3,300 lb
  • Seats: 1
  • Landing gear: fixed
  • Engine: Continental IO-520-FCD (piston); 0 hours total

The flight

  • Flight plan: none
  • Runway 0

Weather at the time

  • Light: daylight
  • Wind: from 130° at 3 knots
  • Sky: not recorded; clear
  • Temperature: 70°F (21°C), dew point 0°F (-18°C)

Injuries

FatalSeriousMinorNone
Crew1

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

The docket, the folder of records gathered during an investigation (maintenance records, photographs, witness statements, examinations), has not been read from the NTSB for this case yet; the list appears here once it has. Open the docket at the NTSB.

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 never names anyone involved. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.